cpython-lru_cache-weakref: Modules/gcmodule.c annotate

annotate Modules/gcmodule.c @ 22360:c8a6ea00a9e1 legacy-trunk

restructure a bit to not rely on test case execution ordering add test case for bug #482460

author	Skip Montanaro <skip@pobox.com>
date	Sun, 17 Mar 2002 23:03:42 +0000
parents	070d392042e3
children	0446eeb787b7 d5aad6c581c9

rev	line source
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	1 /*
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	2
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	3 Reference Cycle Garbage Collection
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	4 ==================================
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	5
15013 25bc16952a24 - update Neil's email address Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15012 diff changeset	6 Neil Schemenauer <nas@arctrix.com>
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	7
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	8 Based on a post on the python-dev list. Ideas from Guido van Rossum,
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	9 Eric Tiedemann, and various others.
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	10
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	11 http://www.arctrix.com/nas/python/gc/
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	12 http://www.python.org/pipermail/python-dev/2000-March/003869.html
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	13 http://www.python.org/pipermail/python-dev/2000-March/004010.html
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	14 http://www.python.org/pipermail/python-dev/2000-March/004022.html
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	15
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	16 For a highlevel view of the collection process, read the collect
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	17 function.
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	18
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	19 */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	20
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	21 #include "Python.h"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	22
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	23 #ifdef WITH_CYCLE_GC
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	24
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	25 /* Get an object's GC head */
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	26 #define AS_GC(o) ((PyGC_Head *)(o)-1)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	27
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	28 /* Get the object given the GC head */
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	29 #define FROM_GC(g) ((PyObject )(((PyGC_Head )g)+1))
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	30
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	31
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	32 /* Global GC state */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	33
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	34 /* linked lists of container objects */
20393 c27cf913b1d6 Use double curly braces for the generation0/1/2 initializers, to shut Guido van Rossum <guido@python.org> parents: 20381 diff changeset	35 PyGC_Head _PyGC_generation0 = {{&_PyGC_generation0, &_PyGC_generation0, 0}};
c27cf913b1d6 Use double curly braces for the generation0/1/2 initializers, to shut Guido van Rossum <guido@python.org> parents: 20381 diff changeset	36 static PyGC_Head generation1 = {{&generation1, &generation1, 0}};
c27cf913b1d6 Use double curly braces for the generation0/1/2 initializers, to shut Guido van Rossum <guido@python.org> parents: 20381 diff changeset	37 static PyGC_Head generation2 = {{&generation2, &generation2, 0}};
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	38 static int generation = 0; /* current generation being collected */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	39
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	40 /* collection frequencies, XXX tune these */
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	41 static int enabled = 1; /* automatic collection enabled? */
14424 6460411f473e compromise value for threshold0: not too high, not too low Jeremy Hylton <jeremy@alum.mit.edu> parents: 14336 diff changeset	42 static int threshold0 = 700; /* net new containers before collection */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	43 static int threshold1 = 10; /* generation0 collections before collecting 1 */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	44 static int threshold2 = 10; /* generation1 collections before collecting 2 */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	45
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	46 /* net new objects allocated since last collection */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	47 static int allocated;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	48
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	49 /* true if we are currently running the collector */
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	50 static int collecting;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	51
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	52 /* set for debugging information */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	53 #define DEBUG_STATS (1<<0) /* print collection statistics */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	54 #define DEBUG_COLLECTABLE (1<<1) /* print collectable objects */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	55 #define DEBUG_UNCOLLECTABLE (1<<2) /* print uncollectable objects */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	56 #define DEBUG_INSTANCES (1<<3) /* print instances */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	57 #define DEBUG_OBJECTS (1<<4) /* print other objects */
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	58 #define DEBUG_SAVEALL (1<<5) /* save all garbage in gc.garbage */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	59 #define DEBUG_LEAK DEBUG_COLLECTABLE \| \
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	60 DEBUG_UNCOLLECTABLE \| \
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	61 DEBUG_INSTANCES \| \
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	62 DEBUG_OBJECTS \| \
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	63 DEBUG_SAVEALL
14330 6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	64 static int debug;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	65
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	66 /* Special gc_refs value */
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	67 #define GC_MOVED -123
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	68
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	69 /* list of uncollectable objects */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	70 static PyObject *garbage;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	71
14330 6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	72 /* Python string to use if unhandled exception occurs */
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	73 static PyObject *gc_str;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	74
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	75 /* list functions */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	76
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	77 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	78 gc_list_init(PyGC_Head *list)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	79 {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	80 list->gc.gc_prev = list;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	81 list->gc.gc_next = list;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	82 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	83
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	84 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	85 gc_list_append(PyGC_Head node, PyGC_Head list)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	86 {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	87 node->gc.gc_next = list;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	88 node->gc.gc_prev = list->gc.gc_prev;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	89 node->gc.gc_prev->gc.gc_next = node;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	90 list->gc.gc_prev = node;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	91 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	92
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	93 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	94 gc_list_remove(PyGC_Head *node)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	95 {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	96 node->gc.gc_prev->gc.gc_next = node->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	97 node->gc.gc_next->gc.gc_prev = node->gc.gc_prev;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	98 node->gc.gc_next = NULL; /* object is not currently tracked */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	99 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	100
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	101 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	102 gc_list_move(PyGC_Head from, PyGC_Head to)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	103 {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	104 if (from->gc.gc_next == from) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	105 /* empty from list */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	106 gc_list_init(to);
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	107 }
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	108 else {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	109 to->gc.gc_next = from->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	110 to->gc.gc_next->gc.gc_prev = to;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	111 to->gc.gc_prev = from->gc.gc_prev;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	112 to->gc.gc_prev->gc.gc_next = to;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	113 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	114 gc_list_init(from);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	115 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	116
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	117 /* append a list onto another list, from becomes an empty list */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	118 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	119 gc_list_merge(PyGC_Head from, PyGC_Head to)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	120 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	121 PyGC_Head *tail;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	122 if (from->gc.gc_next != from) {
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	123 tail = to->gc.gc_prev;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	124 tail->gc.gc_next = from->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	125 tail->gc.gc_next->gc.gc_prev = tail;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	126 to->gc.gc_prev = from->gc.gc_prev;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	127 to->gc.gc_prev->gc.gc_next = to;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	128 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	129 gc_list_init(from);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	130 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	131
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	132 static long
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	133 gc_list_size(PyGC_Head *list)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	134 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	135 PyGC_Head *gc;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	136 long n = 0;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	137 for (gc = list->gc.gc_next; gc != list; gc = gc->gc.gc_next) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	138 n++;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	139 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	140 return n;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	141 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	142
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	143 /* end of list stuff */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	144
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	145
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	146
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	147 /* Set all gc_refs = ob_refcnt */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	148 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	149 update_refs(PyGC_Head *containers)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	150 {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	151 PyGC_Head *gc = containers->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	152 for (; gc != containers; gc=gc->gc.gc_next) {
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	153 gc->gc.gc_refs = FROM_GC(gc)->ob_refcnt;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	154 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	155 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	156
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	157 static int
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	158 visit_decref(PyObject op, void data)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	159 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	160 if (op && PyObject_IS_GC(op)) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	161 PyGC_Head *gc = AS_GC(op);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	162 if (gc->gc.gc_next != NULL)
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	163 AS_GC(op)->gc.gc_refs--;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	164 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	165 return 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	166 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	167
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	168 /* Subtract internal references from gc_refs */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	169 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	170 subtract_refs(PyGC_Head *containers)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	171 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	172 traverseproc traverse;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	173 PyGC_Head *gc = containers->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	174 for (; gc != containers; gc=gc->gc.gc_next) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	175 traverse = FROM_GC(gc)->ob_type->tp_traverse;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	176 (void) traverse(FROM_GC(gc),
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	177 (visitproc)visit_decref,
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	178 NULL);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	179 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	180 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	181
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	182 /* Append objects with gc_refs > 0 to roots list */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	183 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	184 move_roots(PyGC_Head containers, PyGC_Head roots)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	185 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	186 PyGC_Head *next;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	187 PyGC_Head *gc = containers->gc.gc_next;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	188 while (gc != containers) {
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	189 next = gc->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	190 if (gc->gc.gc_refs > 0) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	191 gc_list_remove(gc);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	192 gc_list_append(gc, roots);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	193 gc->gc.gc_refs = GC_MOVED;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	194 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	195 gc = next;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	196 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	197 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	198
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	199 static int
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	200 visit_move(PyObject op, PyGC_Head tolist)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	201 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	202 if (PyObject_IS_GC(op)) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	203 PyGC_Head *gc = AS_GC(op);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	204 if (gc->gc.gc_next != NULL && gc->gc.gc_refs != GC_MOVED) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	205 gc_list_remove(gc);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	206 gc_list_append(gc, tolist);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	207 gc->gc.gc_refs = GC_MOVED;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	208 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	209 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	210 return 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	211 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	212
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	213 /* Move objects referenced from reachable to reachable set. */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	214 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	215 move_root_reachable(PyGC_Head *reachable)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	216 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	217 traverseproc traverse;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	218 PyGC_Head *gc = reachable->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	219 for (; gc != reachable; gc=gc->gc.gc_next) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	220 /* careful, reachable list is growing here */
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	221 PyObject *op = FROM_GC(gc);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	222 traverse = op->ob_type->tp_traverse;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	223 (void) traverse(op,
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	224 (visitproc)visit_move,
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	225 (void *)reachable);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	226 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	227 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	228
20818 9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	229 /* return true of object has a finalization method */
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	230 static int
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	231 has_finalizer(PyObject *op)
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	232 {
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	233 static PyObject *delstr = NULL;
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	234 if (delstr == NULL) {
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	235 delstr = PyString_InternFromString("__del__");
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	236 if (delstr == NULL)
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	237 Py_FatalError("PyGC: can't initialize __del__ string");
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	238 }
20820 5346b6906d1a has_finalizer(): simplified "if (complicated_bool) 1 else 0" to Tim Peters <tim.peters@gmail.com> parents: 20818 diff changeset	239 return (PyInstance_Check(op) \|\|
5346b6906d1a has_finalizer(): simplified "if (complicated_bool) 1 else 0" to Tim Peters <tim.peters@gmail.com> parents: 20818 diff changeset	240 PyType_HasFeature(op->ob_type, Py_TPFLAGS_HEAPTYPE))
5346b6906d1a has_finalizer(): simplified "if (complicated_bool) 1 else 0" to Tim Peters <tim.peters@gmail.com> parents: 20818 diff changeset	241 && PyObject_HasAttr(op, delstr);
20818 9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	242 }
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	243
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	244 /* Move all objects with finalizers (instances with __del__) */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	245 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	246 move_finalizers(PyGC_Head unreachable, PyGC_Head finalizers)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	247 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	248 PyGC_Head *next;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	249 PyGC_Head *gc = unreachable->gc.gc_next;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	250 for (; gc != unreachable; gc=next) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	251 PyObject *op = FROM_GC(gc);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	252 next = gc->gc.gc_next;
20818 9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	253 if (has_finalizer(op)) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	254 gc_list_remove(gc);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	255 gc_list_append(gc, finalizers);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	256 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	257 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	258 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	259
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	260 /* Move objects referenced from roots to roots */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	261 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	262 move_finalizer_reachable(PyGC_Head *finalizers)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	263 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	264 traverseproc traverse;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	265 PyGC_Head *gc = finalizers->gc.gc_next;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	266 for (; gc != finalizers; gc=gc->gc.gc_next) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	267 /* careful, finalizers list is growing here */
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	268 traverse = FROM_GC(gc)->ob_type->tp_traverse;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	269 (void) traverse(FROM_GC(gc),
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	270 (visitproc)visit_move,
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	271 (void *)finalizers);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	272 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	273 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	274
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	275 static void
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	276 debug_instance(char msg, PyInstanceObject inst)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	277 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	278 char *cname;
20818 9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	279 /* simple version of instance_repr */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	280 PyObject *classname = inst->in_class->cl_name;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	281 if (classname != NULL && PyString_Check(classname))
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	282 cname = PyString_AsString(classname);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	283 else
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	284 cname = "?";
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	285 PySys_WriteStderr("gc: %.100s <%.100s instance at %p>\n",
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	286 msg, cname, inst);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	287 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	288
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	289 static void
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	290 debug_cycle(char msg, PyObject op)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	291 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	292 if ((debug & DEBUG_INSTANCES) && PyInstance_Check(op)) {
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	293 debug_instance(msg, (PyInstanceObject *)op);
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	294 }
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	295 else if (debug & DEBUG_OBJECTS) {
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	296 PySys_WriteStderr("gc: %.100s <%.100s %p>\n",
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	297 msg, op->ob_type->tp_name, op);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	298 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	299 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	300
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	301 /* Handle uncollectable garbage (cycles with finalizers). */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	302 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	303 handle_finalizers(PyGC_Head finalizers, PyGC_Head old)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	304 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	305 PyGC_Head *gc;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	306 if (garbage == NULL) {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	307 garbage = PyList_New(0);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	308 }
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	309 for (gc = finalizers->gc.gc_next; gc != finalizers;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	310 gc = finalizers->gc.gc_next) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	311 PyObject *op = FROM_GC(gc);
20818 9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	312 if ((debug & DEBUG_SAVEALL) \|\| has_finalizer(op)) {
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	313 /* If SAVEALL is not set then just append objects with
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	314 * finalizers to the list of garbage. All objects in
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	315 * the finalizers list are reachable from those
9aded6235d89 Add has_finalizer predictate function. Use it when deciding which Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20810 diff changeset	316 * objects. */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	317 PyList_Append(garbage, op);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	318 }
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	319 /* object is now reachable again */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	320 gc_list_remove(gc);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	321 gc_list_append(gc, old);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	322 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	323 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	324
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	325 /* Break reference cycles by clearing the containers involved. This is
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	326 * tricky business as the lists can be changing and we don't know which
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	327 * objects may be freed. It is possible I screwed something up here. */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	328 static void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	329 delete_garbage(PyGC_Head unreachable, PyGC_Head old)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	330 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	331 inquiry clear;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	332
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	333 while (unreachable->gc.gc_next != unreachable) {
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	334 PyGC_Head *gc = unreachable->gc.gc_next;
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	335 PyObject *op = FROM_GC(gc);
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	336 if (debug & DEBUG_SAVEALL) {
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	337 PyList_Append(garbage, op);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	338 }
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	339 else {
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	340 if ((clear = op->ob_type->tp_clear) != NULL) {
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	341 Py_INCREF(op);
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	342 clear((PyObject *)op);
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	343 Py_DECREF(op);
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	344 }
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	345 }
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	346 if (unreachable->gc.gc_next == gc) {
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	347 /* object is still alive, move it, it may die later */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	348 gc_list_remove(gc);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	349 gc_list_append(gc, old);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	350 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	351 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	352 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	353
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	354 /* This is the main function. Read this to understand how the
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	355 * collection process works. */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	356 static long
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	357 collect(PyGC_Head young, PyGC_Head old)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	358 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	359 long n = 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	360 long m = 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	361 PyGC_Head reachable;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	362 PyGC_Head unreachable;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	363 PyGC_Head finalizers;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	364 PyGC_Head *gc;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	365
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	366 if (debug & DEBUG_STATS) {
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	367 PySys_WriteStderr(
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	368 "gc: collecting generation %d...\n"
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	369 "gc: objects in each generation: %ld %ld %ld\n",
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	370 generation,
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	371 gc_list_size(&_PyGC_generation0),
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	372 gc_list_size(&generation1),
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	373 gc_list_size(&generation2));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	374 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	375
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	376 /* Using ob_refcnt and gc_refs, calculate which objects in the
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	377 * container set are reachable from outside the set (ie. have a
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	378 * refcount greater than 0 when all the references within the
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	379 * set are taken into account */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	380 update_refs(young);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	381 subtract_refs(young);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	382
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	383 /* Move everything reachable from outside the set into the
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	384 * reachable set (ie. gc_refs > 0). Next, move everything
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	385 * reachable from objects in the reachable set. */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	386 gc_list_init(&reachable);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	387 move_roots(young, &reachable);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	388 move_root_reachable(&reachable);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	389
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	390 /* move unreachable objects to a temporary list, new objects can be
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	391 * allocated after this point */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	392 gc_list_init(&unreachable);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	393 gc_list_move(young, &unreachable);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	394
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	395 /* move reachable objects to next generation */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	396 gc_list_merge(&reachable, old);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	397
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	398 /* Move objects reachable from finalizers, we can't safely delete
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	399 * them. Python programmers should take care not to create such
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	400 * things. For Python finalizers means instance objects with
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	401 * __del__ methods. */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	402 gc_list_init(&finalizers);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	403 move_finalizers(&unreachable, &finalizers);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	404 move_finalizer_reachable(&finalizers);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	405
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	406 /* Collect statistics on collectable objects found and print
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	407 * debugging information. */
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	408 for (gc = unreachable.gc.gc_next; gc != &unreachable;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	409 gc = gc->gc.gc_next) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	410 m++;
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	411 if (debug & DEBUG_COLLECTABLE) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	412 debug_cycle("collectable", FROM_GC(gc));
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	413 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	414 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	415 /* call tp_clear on objects in the collectable set. This will cause
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	416 * the reference cycles to be broken. It may also cause some objects in
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	417 * finalizers to be freed */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	418 delete_garbage(&unreachable, old);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	419
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	420 /* Collect statistics on uncollectable objects found and print
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	421 * debugging information. */
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	422 for (gc = finalizers.gc.gc_next; gc != &finalizers;
b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	423 gc = gc->gc.gc_next) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	424 n++;
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	425 if (debug & DEBUG_UNCOLLECTABLE) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	426 debug_cycle("uncollectable", FROM_GC(gc));
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	427 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	428 }
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	429 if (debug & DEBUG_STATS) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	430 if (m == 0 && n == 0) {
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	431 PySys_WriteStderr("gc: done.\n");
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	432 }
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	433 else {
14294 053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	434 PySys_WriteStderr(
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	435 "gc: done, %ld unreachable, %ld uncollectable.\n",
053627e7ac14 apply patch #101362 by Vladimir Marangozov Jeremy Hylton <jeremy@alum.mit.edu> parents: 13878 diff changeset	436 n+m, n);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	437 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	438 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	439
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	440 /* Append instances in the uncollectable set to a Python
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	441 * reachable list of garbage. The programmer has to deal with
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	442 * this if they insist on creating this type of structure. */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	443 handle_finalizers(&finalizers, old);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	444
14330 6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	445 if (PyErr_Occurred()) {
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	446 if (gc_str == NULL) {
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	447 gc_str = PyString_FromString("garbage collection");
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	448 }
14330 6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	449 PyErr_WriteUnraisable(gc_str);
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	450 Py_FatalError("unexpected exception during garbage collection");
6dee1985c681 refactor __del__ exception handler into PyErr_WriteUnraisable Jeremy Hylton <jeremy@alum.mit.edu> parents: 14294 diff changeset	451 }
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	452 allocated = 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	453 return n+m;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	454 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	455
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	456 static long
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	457 collect_generations(void)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	458 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	459 static long collections0 = 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	460 static long collections1 = 0;
13490 cb539824448e Initialize the return value in collect_generations() since it is updated Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13183 diff changeset	461 long n = 0;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	462
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	463
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	464 if (collections1 > threshold2) {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	465 generation = 2;
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	466 gc_list_merge(&_PyGC_generation0, &generation2);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	467 gc_list_merge(&generation1, &generation2);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	468 if (generation2.gc.gc_next != &generation2) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	469 n = collect(&generation2, &generation2);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	470 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	471 collections1 = 0;
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	472 }
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	473 else if (collections0 > threshold1) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	474 generation = 1;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	475 collections1++;
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	476 gc_list_merge(&_PyGC_generation0, &generation1);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	477 if (generation1.gc.gc_next != &generation1) {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	478 n = collect(&generation1, &generation2);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	479 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	480 collections0 = 0;
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	481 }
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	482 else {
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	483 generation = 0;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	484 collections0++;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	485 if (_PyGC_generation0.gc.gc_next != &_PyGC_generation0) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	486 n = collect(&_PyGC_generation0, &generation1);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	487 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	488 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	489 return n;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	490 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	491
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	492 static char gc_enable__doc__[] =
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	493 "enable() -> None\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	494 "\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	495 "Enable automatic garbage collection.\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	496 ;
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	497
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	498 static PyObject *
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	499 gc_enable(PyObject self, PyObject args)
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	500 {
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	501
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	502 if (!PyArg_ParseTuple(args, ":enable")) /* check no args */
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	503 return NULL;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	504
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	505 enabled = 1;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	506
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	507 Py_INCREF(Py_None);
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	508 return Py_None;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	509 }
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	510
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	511 static char gc_disable__doc__[] =
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	512 "disable() -> None\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	513 "\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	514 "Disable automatic garbage collection.\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	515 ;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	516
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	517 static PyObject *
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	518 gc_disable(PyObject self, PyObject args)
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	519 {
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	520
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	521 if (!PyArg_ParseTuple(args, ":disable")) /* check no args */
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	522 return NULL;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	523
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	524 enabled = 0;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	525
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	526 Py_INCREF(Py_None);
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	527 return Py_None;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	528 }
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	529
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	530 static char gc_isenabled__doc__[] =
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	531 "isenabled() -> status\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	532 "\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	533 "Returns true if automatic garbage collection is enabled.\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	534 ;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	535
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	536 static PyObject *
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	537 gc_isenabled(PyObject self, PyObject args)
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	538 {
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	539
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	540 if (!PyArg_ParseTuple(args, ":isenabled")) /* check no args */
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	541 return NULL;
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	542
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	543 return Py_BuildValue("i", enabled);
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	544 }
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	545
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	546 static char gc_collect__doc__[] =
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	547 "collect() -> n\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	548 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	549 "Run a full collection. The number of unreachable objects is returned.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	550 ;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	551
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	552 static PyObject *
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	553 gc_collect(PyObject self, PyObject args)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	554 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	555 long n;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	556
13567 cfb2a0d0a869 Always use the :funcname part of the format specifier for PyArg_ParseTuple() Fred Drake <fdrake@acm.org> parents: 13534 diff changeset	557 if (!PyArg_ParseTuple(args, ":collect")) /* check no args */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	558 return NULL;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	559
20796 9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	560 if (collecting) {
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	561 n = 0; /* already collecting, don't do anything */
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	562 }
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	563 else {
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	564 collecting = 1;
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	565 generation = 2;
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	566 gc_list_merge(&_PyGC_generation0, &generation2);
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	567 gc_list_merge(&generation1, &generation2);
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	568 n = collect(&generation2, &generation2);
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	569 collecting = 0;
9c23abab962d Make the gc.collect() function respect the collection lock. This fixes Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 20393 diff changeset	570 }
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	571
14774 52174b002f1f Fix some long/"l" int/"i" mismatches. Fixes bug #113779. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14756 diff changeset	572 return Py_BuildValue("l", n);
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	573 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	574
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	575 static char gc_set_debug__doc__[] =
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	576 "set_debug(flags) -> None\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	577 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	578 "Set the garbage collection debugging flags. Debugging information is\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	579 "written to sys.stderr.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	580 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	581 "flags is an integer and can have the following bits turned on:\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	582 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	583 " DEBUG_STATS - Print statistics during collection.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	584 " DEBUG_COLLECTABLE - Print collectable objects found.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	585 " DEBUG_UNCOLLECTABLE - Print unreachable but uncollectable objects found.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	586 " DEBUG_INSTANCES - Print instance objects.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	587 " DEBUG_OBJECTS - Print objects other than instances.\n"
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	588 " DEBUG_SAVEALL - Save objects to gc.garbage rather than freeing them.\n"
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	589 " DEBUG_LEAK - Debug leaking programs (everything but STATS).\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	590 ;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	591
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	592 static PyObject *
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	593 gc_set_debug(PyObject self, PyObject args)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	594 {
14774 52174b002f1f Fix some long/"l" int/"i" mismatches. Fixes bug #113779. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14756 diff changeset	595 if (!PyArg_ParseTuple(args, "i:set_debug", &debug))
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	596 return NULL;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	597
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	598 Py_INCREF(Py_None);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	599 return Py_None;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	600 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	601
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	602 static char gc_get_debug__doc__[] =
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	603 "get_debug() -> flags\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	604 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	605 "Get the garbage collection debugging flags.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	606 ;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	607
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	608 static PyObject *
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	609 gc_get_debug(PyObject self, PyObject args)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	610 {
13567 cfb2a0d0a869 Always use the :funcname part of the format specifier for PyArg_ParseTuple() Fred Drake <fdrake@acm.org> parents: 13534 diff changeset	611 if (!PyArg_ParseTuple(args, ":get_debug")) /* no args */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	612 return NULL;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	613
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	614 return Py_BuildValue("i", debug);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	615 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	616
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	617 static char gc_set_thresh__doc__[] =
21833 070d392042e3 Fix spelling mistakes. Bugfix candidates. Neal Norwitz <nnorwitz@gmail.com> parents: 21139 diff changeset	618 "set_threshold(threshold0, [threshold1, threshold2]) -> None\n"
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	619 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	620 "Sets the collection thresholds. Setting threshold0 to zero disables\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	621 "collection.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	622 ;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	623
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	624 static PyObject *
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	625 gc_set_thresh(PyObject self, PyObject args)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	626 {
13567 cfb2a0d0a869 Always use the :funcname part of the format specifier for PyArg_ParseTuple() Fred Drake <fdrake@acm.org> parents: 13534 diff changeset	627 if (!PyArg_ParseTuple(args, "i\|ii:set_threshold", &threshold0,
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	628 &threshold1, &threshold2))
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	629 return NULL;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	630
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	631 Py_INCREF(Py_None);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	632 return Py_None;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	633 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	634
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	635 static char gc_get_thresh__doc__[] =
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	636 "get_threshold() -> (threshold0, threshold1, threshold2)\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	637 "\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	638 "Return the current collection thresholds\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	639 ;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	640
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	641 static PyObject *
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	642 gc_get_thresh(PyObject self, PyObject args)
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	643 {
13567 cfb2a0d0a869 Always use the :funcname part of the format specifier for PyArg_ParseTuple() Fred Drake <fdrake@acm.org> parents: 13534 diff changeset	644 if (!PyArg_ParseTuple(args, ":get_threshold")) /* no args */
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	645 return NULL;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	646
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	647 return Py_BuildValue("(iii)", threshold0, threshold1, threshold2);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	648 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	649
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	650 static int
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	651 referrersvisit(PyObject* obj, PyObject *objs)
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	652 {
21105 d19513e2893c Use identity instead of equality when looking for referrers. Fixes #485781. Martin v. Löwis <martin@v.loewis.de> parents: 21038 diff changeset	653 int i;
d19513e2893c Use identity instead of equality when looking for referrers. Fixes #485781. Martin v. Löwis <martin@v.loewis.de> parents: 21038 diff changeset	654 for (i = 0; i < PyTuple_GET_SIZE(objs); i++)
d19513e2893c Use identity instead of equality when looking for referrers. Fixes #485781. Martin v. Löwis <martin@v.loewis.de> parents: 21038 diff changeset	655 if (PyTuple_GET_ITEM(objs, i) == obj)
d19513e2893c Use identity instead of equality when looking for referrers. Fixes #485781. Martin v. Löwis <martin@v.loewis.de> parents: 21038 diff changeset	656 return 1;
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	657 return 0;
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	658 }
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	659
19128 4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	660 static int
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	661 gc_referrers_for(PyObject objs, PyGC_Head list, PyObject *resultlist)
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	662 {
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	663 PyGC_Head *gc;
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	664 PyObject *obj;
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	665 traverseproc traverse;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	666 for (gc = list->gc.gc_next; gc != list; gc = gc->gc.gc_next) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	667 obj = FROM_GC(gc);
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	668 traverse = obj->ob_type->tp_traverse;
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	669 if (obj == objs \|\| obj == resultlist)
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	670 continue;
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	671 if (traverse(obj, (visitproc)referrersvisit, objs)) {
19128 4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	672 if (PyList_Append(resultlist, obj) < 0)
4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	673 return 0; /* error */
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	674 }
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	675 }
19128 4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	676 return 1; /* no error */
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	677 }
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	678
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	679 static char gc_get_referrers__doc__[]=
afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	680 "get_referrers(*objs) -> list\n\
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	681 Return the list of objects that directly refer to any of objs.";
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	682
19128 4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	683 static PyObject *
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	684 gc_get_referrers(PyObject self, PyObject args)
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	685 {
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	686 PyObject *result = PyList_New(0);
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	687 if (!(gc_referrers_for(args, &_PyGC_generation0, result) &&
afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	688 gc_referrers_for(args, &generation1, result) &&
afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	689 gc_referrers_for(args, &generation2, result))) {
19128 4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	690 Py_DECREF(result);
4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	691 return NULL;
4901a935490d Remove "referents" structure (it's not needed). Check return value Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19097 diff changeset	692 }
19096 45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	693 return result;
45ccf3b889b5 Add get_referents function. Closes SF patch #402925. Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 15013 diff changeset	694 }
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	695
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	696 static char gc_get_objects__doc__[] =
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	697 "get_objects() -> [...]\n"
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	698 "\n"
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	699 "Return a list of objects tracked by the collector (excluding the list\n"
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	700 "returned).\n"
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	701 ;
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	702
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	703 /* appending objects in a GC list to a Python list */
21130 6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	704 static int
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	705 append_objects(PyObject py_list, PyGC_Head gc_list)
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	706 {
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	707 PyGC_Head *gc;
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	708 for (gc = gc_list->gc.gc_next; gc != gc_list; gc = gc->gc.gc_next) {
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	709 PyObject *op = FROM_GC(gc);
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	710 if (op != py_list) {
21130 6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	711 if (PyList_Append(py_list, op)) {
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	712 return -1; /* exception */
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	713 }
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	714 }
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	715 }
21130 6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	716 return 0;
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	717 }
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	718
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	719 static PyObject *
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	720 gc_get_objects(PyObject self, PyObject args)
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	721 {
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	722 PyObject* result;
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	723
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	724 if (!PyArg_ParseTuple(args, ":get_objects")) /* check no args */
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	725 return NULL;
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	726 result = PyList_New(0);
21139 67508a351aa2 Check for NULL return value of PyList_New (follow-up to patch #486743). Martin v. Löwis <martin@v.loewis.de> parents: 21130 diff changeset	727 if (result == NULL) {
67508a351aa2 Check for NULL return value of PyList_New (follow-up to patch #486743). Martin v. Löwis <martin@v.loewis.de> parents: 21130 diff changeset	728 return NULL;
67508a351aa2 Check for NULL return value of PyList_New (follow-up to patch #486743). Martin v. Löwis <martin@v.loewis.de> parents: 21130 diff changeset	729 }
21130 6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	730 if (append_objects(result, &_PyGC_generation0) \|\|
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	731 append_objects(result, &generation1) \|\|
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	732 append_objects(result, &generation2)) {
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	733 Py_DECREF(result);
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	734 return NULL;
6e34151aefe6 Patch #486743: remove bad INCREF, propagate exception in append_objects. Martin v. Löwis <martin@v.loewis.de> parents: 21105 diff changeset	735 }
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	736 return result;
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	737 }
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	738
9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	739
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	740 static char gc__doc__ [] =
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	741 "This module provides access to the garbage collector for reference cycles.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	742 "\n"
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	743 "enable() -- Enable automatic garbage collection.\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	744 "disable() -- Disable automatic garbage collection.\n"
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	745 "isenabled() -- Returns true if automatic collection is enabled.\n"
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	746 "collect() -- Do a full collection right now.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	747 "set_debug() -- Set debugging flags.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	748 "get_debug() -- Get debugging flags.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	749 "set_threshold() -- Set the collection thresholds.\n"
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	750 "get_threshold() -- Return the current the collection thresholds.\n"
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	751 "get_objects() -- Return a list of all objects tracked by the collector.\n"
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	752 "get_referrers() -- Return the list of objects that refer to an object.\n"
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	753 ;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	754
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	755 static PyMethodDef GcMethods[] = {
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	756 {"enable", gc_enable, METH_VARARGS, gc_enable__doc__},
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	757 {"disable", gc_disable, METH_VARARGS, gc_disable__doc__},
13878 abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	758 {"isenabled", gc_isenabled, METH_VARARGS, gc_isenabled__doc__},
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	759 {"set_debug", gc_set_debug, METH_VARARGS, gc_set_debug__doc__},
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	760 {"get_debug", gc_get_debug, METH_VARARGS, gc_get_debug__doc__},
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	761 {"set_threshold", gc_set_thresh, METH_VARARGS, gc_set_thresh__doc__},
abfa4e4b2f3e Neil Schemenauer: GC enable(), disable(), isenabled() interface. Vladimir Marangozov <vladimir.marangozov@t-online.de> parents: 13570 diff changeset	762 {"get_threshold", gc_get_thresh, METH_VARARGS, gc_get_thresh__doc__},
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	763 {"collect", gc_collect, METH_VARARGS, gc_collect__doc__},
19097 9e6f7804ef14 Add get_objects function. This is a low level function (like Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19096 diff changeset	764 {"get_objects", gc_get_objects,METH_VARARGS, gc_get_objects__doc__},
21038 afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	765 {"get_referrers", gc_get_referrers, METH_VARARGS,
afb789aada16 Rename get_referents to get_referrers. Fixes #483815. Martin v. Löwis <martin@v.loewis.de> parents: 20820 diff changeset	766 gc_get_referrers__doc__},
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	767 {NULL, NULL} /* Sentinel */
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	768 };
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	769
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	770 void
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	771 initgc(void)
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	772 {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	773 PyObject *m;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	774 PyObject *d;
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	775
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	776 m = Py_InitModule4("gc",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	777 GcMethods,
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	778 gc__doc__,
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	779 NULL,
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	780 PYTHON_API_VERSION);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	781 d = PyModule_GetDict(m);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	782 if (garbage == NULL) {
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	783 garbage = PyList_New(0);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	784 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	785 PyDict_SetItemString(d, "garbage", garbage);
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	786 PyDict_SetItemString(d, "DEBUG_STATS",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	787 PyInt_FromLong(DEBUG_STATS));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	788 PyDict_SetItemString(d, "DEBUG_COLLECTABLE",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	789 PyInt_FromLong(DEBUG_COLLECTABLE));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	790 PyDict_SetItemString(d, "DEBUG_UNCOLLECTABLE",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	791 PyInt_FromLong(DEBUG_UNCOLLECTABLE));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	792 PyDict_SetItemString(d, "DEBUG_INSTANCES",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	793 PyInt_FromLong(DEBUG_INSTANCES));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	794 PyDict_SetItemString(d, "DEBUG_OBJECTS",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	795 PyInt_FromLong(DEBUG_OBJECTS));
14756 6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	796 PyDict_SetItemString(d, "DEBUG_SAVEALL",
6e9331e68a3b - Add DEBUG_SAVEALL option. When enabled all garbage objects found by the Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 14424 diff changeset	797 PyInt_FromLong(DEBUG_SAVEALL));
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	798 PyDict_SetItemString(d, "DEBUG_LEAK",
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	799 PyInt_FromLong(DEBUG_LEAK));
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	800 }
54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	801
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	802 /* for debugging */
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	803 void _PyGC_Dump(PyGC_Head *g)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	804 {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	805 _PyObject_Dump(FROM_GC(g));
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	806 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	807
13183 54bffdddc0ef final patches from Neil Schemenauer for garbage collection Jeremy Hylton <jeremy@alum.mit.edu> parents: diff changeset	808 #endif /* WITH_CYCLE_GC */
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	809
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	810 /* extension modules might be compiled with GC support so these
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	811 functions must always be available */
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	812
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	813 void
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	814 _PyObject_GC_Track(PyObject *op)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	815 {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	816 _PyObject_GC_TRACK(op);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	817 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	818
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	819 void
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	820 _PyObject_GC_UnTrack(PyObject *op)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	821 {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	822 _PyObject_GC_UNTRACK(op);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	823 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	824
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	825 PyObject *
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	826 _PyObject_GC_Malloc(PyTypeObject *tp, int nitems)
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	827 {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	828 PyObject *op;
20296 6cc0b48049ec Guido suggests, and I agree, to insist that SIZEOF_VOID_P be a power of 2. Tim Peters <tim.peters@gmail.com> parents: 20294 diff changeset	829 const size_t basicsize = _PyObject_VAR_SIZE(tp, nitems);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	830 #ifdef WITH_CYCLE_GC
20296 6cc0b48049ec Guido suggests, and I agree, to insist that SIZEOF_VOID_P be a power of 2. Tim Peters <tim.peters@gmail.com> parents: 20294 diff changeset	831 const size_t nbytes = sizeof(PyGC_Head) + basicsize;
6cc0b48049ec Guido suggests, and I agree, to insist that SIZEOF_VOID_P be a power of 2. Tim Peters <tim.peters@gmail.com> parents: 20294 diff changeset	832 PyGC_Head *g = PyObject_MALLOC(nbytes);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	833 if (g == NULL)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	834 return (PyObject *)PyErr_NoMemory();
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	835 g->gc.gc_next = NULL;
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	836 allocated++;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	837 if (allocated > threshold0 &&
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	838 enabled &&
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	839 threshold0 &&
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	840 !collecting &&
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	841 !PyErr_Occurred()) {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	842 collecting = 1;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	843 collect_generations();
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	844 collecting = 0;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	845 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	846 op = FROM_GC(g);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	847 #else
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	848 op = PyObject_MALLOC(basicsize);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	849 if (op == NULL)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	850 return (PyObject *)PyErr_NoMemory();
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	851
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	852 #endif
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	853 return op;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	854 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	855
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	856 PyObject *
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	857 _PyObject_GC_New(PyTypeObject *tp)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	858 {
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	859 PyObject *op = _PyObject_GC_Malloc(tp, 0);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	860 return PyObject_INIT(op, tp);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	861 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	862
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	863 PyVarObject *
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	864 _PyObject_GC_NewVar(PyTypeObject *tp, int nitems)
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	865 {
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	866 PyVarObject op = (PyVarObject ) _PyObject_GC_Malloc(tp, nitems);
426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	867 return PyObject_INIT_VAR(op, tp, nitems);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	868 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	869
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	870 PyVarObject *
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	871 _PyObject_GC_Resize(PyVarObject *op, int nitems)
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	872 {
20296 6cc0b48049ec Guido suggests, and I agree, to insist that SIZEOF_VOID_P be a power of 2. Tim Peters <tim.peters@gmail.com> parents: 20294 diff changeset	873 const size_t basicsize = _PyObject_VAR_SIZE(op->ob_type, nitems);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	874 #ifdef WITH_CYCLE_GC
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	875 PyGC_Head *g = AS_GC(op);
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	876 g = PyObject_REALLOC(g, sizeof(PyGC_Head) + basicsize);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	877 if (g == NULL)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	878 return (PyVarObject *)PyErr_NoMemory();
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	879 op = (PyVarObject *) FROM_GC(g);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	880 #else
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	881 op = PyObject_REALLOC(op, basicsize);
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	882 if (op == NULL)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	883 return (PyVarObject *)PyErr_NoMemory();
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	884 #endif
20294 426b379a138b _PyObject_VAR_SIZE: always round up to a multiple-of-pointer-size value. Tim Peters <tim.peters@gmail.com> parents: 20293 diff changeset	885 op->ob_size = nitems;
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	886 return op;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	887 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	888
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	889 void
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	890 _PyObject_GC_Del(PyObject *op)
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	891 {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	892 #ifdef WITH_CYCLE_GC
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	893 PyGC_Head *g = AS_GC(op);
20381 b4f829941f3d SF bug [#467145] Python 2.2a4 build problem on HPUX 11.0. Tim Peters <tim.peters@gmail.com> parents: 20296 diff changeset	894 if (g->gc.gc_next != NULL)
19585 c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	895 gc_list_remove(g);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	896 if (allocated > 0) {
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	897 allocated--;
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	898 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	899 PyObject_FREE(g);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	900 #else
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	901 PyObject_FREE(op);
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	902 #endif
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	903 }
c43d7a8f00a4 Make more things internal to this file. Remove Neil Schemenauer <nascheme@enme.ucalgary.ca> parents: 19128 diff changeset	904

Mercurial > cpython-lru_cache-weakref

annotate Modules/gcmodule.c @ 22360:c8a6ea00a9e1 legacy-trunk