cpython-lru_cache-weakref: Python/pystate.c annotate

annotate Python/pystate.c @ 68588:cd8d3c2d3bce 2.7

#11565: Fix several typos. Patch by Piotr Kasprzyk.

author	Ezio Melotti <ezio.melotti@gmail.com>
date	Wed, 16 Mar 2011 12:34:31 +0200
parents	b36cb4602e21
children	f6feed6ec3f9

rev	line source
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	1
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	2 /* Thread and interpreter state structures and their interfaces */
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	3
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	4 #include "Python.h"
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	5
33713 517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	6 /* --------------------------------------------------------------------------
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	7 CAUTION
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	8
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	9 Always use malloc() and free() directly in this file. A number of these
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	10 functions are advertised as safe to call when the GIL isn't held, and in
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	11 a debug build Python redirects (e.g.) PyMem_NEW (etc) to Python's debugging
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	12 obmalloc functions. Those aren't thread-safe (they rely on the GIL to avoid
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	13 the expense of doing their own locking).
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	14 -------------------------------------------------------------------------- */
517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	15
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	16 #ifdef HAVE_DLOPEN
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	17 #ifdef HAVE_DLFCN_H
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	18 #include <dlfcn.h>
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	19 #endif
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	20 #ifndef RTLD_LAZY
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	21 #define RTLD_LAZY 1
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	22 #endif
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	23 #endif
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	24
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	25
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	26 #ifdef WITH_THREAD
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	27 #include "pythread.h"
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	28 static PyThread_type_lock head_mutex = NULL; /* Protects interp->tstate_head */
13866 dfdb601cee1c Removing warnings by gcc -Wall -- cast ugly \|\| to void. Moshe Zadka <moshez@math.huji.ac.il> parents: 13658 diff changeset	29 #define HEAD_INIT() (void)(head_mutex \|\| (head_mutex = PyThread_allocate_lock()))
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	30 #define HEAD_LOCK() PyThread_acquire_lock(head_mutex, WAIT_LOCK)
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	31 #define HEAD_UNLOCK() PyThread_release_lock(head_mutex)
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	32
37655 2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	33 #ifdef __cplusplus
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	34 extern "C" {
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	35 #endif
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	36
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	37 /* The single PyInterpreterState used by this process'
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	38 GILState implementation
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	39 */
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	40 static PyInterpreterState *autoInterpreterState = NULL;
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	41 static int autoTLSkey = 0;
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	42 #else
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	43 #define HEAD_INIT() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	44 #define HEAD_LOCK() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	45 #define HEAD_UNLOCK() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	46 #endif
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	47
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	48 static PyInterpreterState *interp_head = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	49
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	50 PyThreadState *_PyThreadState_Current = NULL;
27978 4b99a701defe - PyEval_GetFrame() is now declared to return a PyFrameObject * Guido van Rossum <guido@python.org> parents: 26109 diff changeset	51 PyThreadFrameGetter _PyThreadState_GetFrame = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	52
35661 85651eb3d9a9 Forward port bugfix: Michael W. Hudson <mwh@python.net> parents: 35117 diff changeset	53 #ifdef WITH_THREAD
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	54 static void _PyGILState_NoteThreadState(PyThreadState* tstate);
35661 85651eb3d9a9 Forward port bugfix: Michael W. Hudson <mwh@python.net> parents: 35117 diff changeset	55 #endif
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	56
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	57
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	58 PyInterpreterState *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	59 PyInterpreterState_New(void)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	60 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	61 PyInterpreterState interp = (PyInterpreterState )
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	62 malloc(sizeof(PyInterpreterState));
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	63
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	64 if (interp != NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	65 HEAD_INIT();
39129 f2031f15d99d Handle allocation failures gracefully. Found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39118 diff changeset	66 #ifdef WITH_THREAD
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	67 if (head_mutex == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	68 Py_FatalError("Can't initialize threads for interpreter");
39129 f2031f15d99d Handle allocation failures gracefully. Found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39118 diff changeset	69 #endif
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	70 interp->modules = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	71 interp->modules_reloading = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	72 interp->sysdict = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	73 interp->builtins = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	74 interp->tstate_head = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	75 interp->codec_search_path = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	76 interp->codec_search_cache = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	77 interp->codec_error_registry = NULL;
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	78 #ifdef HAVE_DLOPEN
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	79 #ifdef RTLD_NOW
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	80 interp->dlopenflags = RTLD_NOW;
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	81 #else
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	82 interp->dlopenflags = RTLD_LAZY;
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	83 #endif
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	84 #endif
32301 41c59d80bbc5 Patch #510695: Add TSC profiling for the VM. Martin v. Löwis <martin@v.loewis.de> parents: 31797 diff changeset	85 #ifdef WITH_TSC
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	86 interp->tscdump = 0;
32301 41c59d80bbc5 Patch #510695: Add TSC profiling for the VM. Martin v. Löwis <martin@v.loewis.de> parents: 31797 diff changeset	87 #endif
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	88
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	89 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	90 interp->next = interp_head;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	91 interp_head = interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	92 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	93 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	94
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	95 return interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	96 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	97
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	98
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	99 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	100 PyInterpreterState_Clear(PyInterpreterState *interp)
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	101 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	102 PyThreadState *p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	103 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	104 for (p = interp->tstate_head; p != NULL; p = p->next)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	105 PyThreadState_Clear(p);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	106 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	107 Py_CLEAR(interp->codec_search_path);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	108 Py_CLEAR(interp->codec_search_cache);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	109 Py_CLEAR(interp->codec_error_registry);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	110 Py_CLEAR(interp->modules);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	111 Py_CLEAR(interp->modules_reloading);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	112 Py_CLEAR(interp->sysdict);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	113 Py_CLEAR(interp->builtins);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	114 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	115
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	116
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	117 static void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	118 zapthreads(PyInterpreterState *interp)
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	119 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	120 PyThreadState *p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	121 /* No need to lock the mutex here because this should only happen
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	122 when the threads are all really dead (XXX famous last words). */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	123 while ((p = interp->tstate_head) != NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	124 PyThreadState_Delete(p);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	125 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	126 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	127
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	128
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	129 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	130 PyInterpreterState_Delete(PyInterpreterState *interp)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	131 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	132 PyInterpreterState **p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	133 zapthreads(interp);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	134 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	135 for (p = &interp_head; ; p = &(*p)->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	136 if (*p == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	137 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	138 "PyInterpreterState_Delete: invalid interp");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	139 if (*p == interp)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	140 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	141 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	142 if (interp->tstate_head != NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	143 Py_FatalError("PyInterpreterState_Delete: remaining threads");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	144 *p = interp->next;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	145 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	146 free(interp);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	147 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	148
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	149
26109 e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	150 /* Default implementation for _PyThreadState_GetFrame */
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	151 static struct _frame *
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	152 threadstate_getframe(PyThreadState *self)
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	153 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	154 return self->frame;
26109 e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	155 }
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	156
59315 7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	157 static PyThreadState *
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	158 new_threadstate(PyInterpreterState *interp, int init)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	159 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	160 PyThreadState tstate = (PyThreadState )malloc(sizeof(PyThreadState));
33713 517e4ec0df89 PyInterpreterState_New(), PyThreadState_New(): use malloc/free directly. Tim Peters <tim.peters@gmail.com> parents: 33711 diff changeset	161
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	162 if (_PyThreadState_GetFrame == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	163 _PyThreadState_GetFrame = threadstate_getframe;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	164
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	165 if (tstate != NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	166 tstate->interp = interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	167
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	168 tstate->frame = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	169 tstate->recursion_depth = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	170 tstate->tracing = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	171 tstate->use_tracing = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	172 tstate->tick_counter = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	173 tstate->gilstate_counter = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	174 tstate->async_exc = NULL;
29842 014cc362aa91 Initialize thread_id to 0 in unthreaded build. Fixes #770247. Martin v. Löwis <martin@v.loewis.de> parents: 29643 diff changeset	175 #ifdef WITH_THREAD
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	176 tstate->thread_id = PyThread_get_thread_ident();
29842 014cc362aa91 Initialize thread_id to 0 in unthreaded build. Fixes #770247. Martin v. Löwis <martin@v.loewis.de> parents: 29643 diff changeset	177 #else
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	178 tstate->thread_id = 0;
29842 014cc362aa91 Initialize thread_id to 0 in unthreaded build. Fixes #770247. Martin v. Löwis <martin@v.loewis.de> parents: 29643 diff changeset	179 #endif
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	180
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	181 tstate->dict = NULL;
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	182
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	183 tstate->curexc_type = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	184 tstate->curexc_value = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	185 tstate->curexc_traceback = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	186
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	187 tstate->exc_type = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	188 tstate->exc_value = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	189 tstate->exc_traceback = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	190
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	191 tstate->c_profilefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	192 tstate->c_tracefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	193 tstate->c_profileobj = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	194 tstate->c_traceobj = NULL;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	195
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	196 if (init)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	197 _PyThreadState_Init(tstate);
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	198
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	199 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	200 tstate->next = interp->tstate_head;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	201 interp->tstate_head = tstate;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	202 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	203 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	204
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	205 return tstate;
26109 e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	206 }
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	207
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	208 PyThreadState *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	209 PyThreadState_New(PyInterpreterState *interp)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	210 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	211 return new_threadstate(interp, 1);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	212 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	213
59315 7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	214 PyThreadState *
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	215 _PyThreadState_Prealloc(PyInterpreterState *interp)
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	216 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	217 return new_threadstate(interp, 0);
59315 7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	218 }
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	219
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	220 void
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	221 _PyThreadState_Init(PyThreadState *tstate)
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	222 {
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	223 #ifdef WITH_THREAD
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	224 _PyGILState_NoteThreadState(tstate);
59315 7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	225 #endif
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	226 }
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	227
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	228 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	229 PyThreadState_Clear(PyThreadState *tstate)
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	230 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	231 if (Py_VerboseFlag && tstate->frame != NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	232 fprintf(stderr,
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	233 "PyThreadState_Clear: warning: thread still has a frame\n");
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	234
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	235 Py_CLEAR(tstate->frame);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	236
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	237 Py_CLEAR(tstate->dict);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	238 Py_CLEAR(tstate->async_exc);
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	239
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	240 Py_CLEAR(tstate->curexc_type);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	241 Py_CLEAR(tstate->curexc_value);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	242 Py_CLEAR(tstate->curexc_traceback);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	243
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	244 Py_CLEAR(tstate->exc_type);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	245 Py_CLEAR(tstate->exc_value);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	246 Py_CLEAR(tstate->exc_traceback);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	247
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	248 tstate->c_profilefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	249 tstate->c_tracefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	250 Py_CLEAR(tstate->c_profileobj);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	251 Py_CLEAR(tstate->c_traceobj);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	252 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	253
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	254
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	255 /* Common code for PyThreadState_Delete() and PyThreadState_DeleteCurrent() */
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	256 static void
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	257 tstate_delete_common(PyThreadState *tstate)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	258 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	259 PyInterpreterState *interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	260 PyThreadState **p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	261 PyThreadState *prev_p = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	262 if (tstate == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	263 Py_FatalError("PyThreadState_Delete: NULL tstate");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	264 interp = tstate->interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	265 if (interp == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	266 Py_FatalError("PyThreadState_Delete: NULL interp");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	267 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	268 for (p = &interp->tstate_head; ; p = &(*p)->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	269 if (*p == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	270 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	271 "PyThreadState_Delete: invalid tstate");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	272 if (*p == tstate)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	273 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	274 /* Sanity check. These states should never happen but if
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	275 * they do we must abort. Otherwise we'll end up spinning in
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	276 * in a tight loop with the lock held. A similar check is done
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	277 * in thread.c find_key(). */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	278 if (*p == prev_p)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	279 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	280 "PyThreadState_Delete: small circular list(!)"
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	281 " and tstate not found.");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	282 prev_p = *p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	283 if ((*p)->next == interp->tstate_head)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	284 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	285 "PyThreadState_Delete: circular list(!) and"
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	286 " tstate not found.");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	287 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	288 *p = tstate->next;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	289 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	290 free(tstate);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	291 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	292
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	293
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	294 void
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	295 PyThreadState_Delete(PyThreadState *tstate)
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	296 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	297 if (tstate == _PyThreadState_Current)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	298 Py_FatalError("PyThreadState_Delete: tstate is still current");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	299 tstate_delete_common(tstate);
36683 da2a1049215d Patch 1413181, by Gabriel Becedillas. Tim Peters <tim.peters@gmail.com> parents: 35661 diff changeset	300 #ifdef WITH_THREAD
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	301 if (autoInterpreterState && PyThread_get_key_value(autoTLSkey) == tstate)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	302 PyThread_delete_key_value(autoTLSkey);
36683 da2a1049215d Patch 1413181, by Gabriel Becedillas. Tim Peters <tim.peters@gmail.com> parents: 35661 diff changeset	303 #endif /* WITH_THREAD */
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	304 }
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	305
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	306
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	307 #ifdef WITH_THREAD
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	308 void
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	309 PyThreadState_DeleteCurrent()
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	310 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	311 PyThreadState *tstate = _PyThreadState_Current;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	312 if (tstate == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	313 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	314 "PyThreadState_DeleteCurrent: no current tstate");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	315 _PyThreadState_Current = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	316 tstate_delete_common(tstate);
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	317 if (autoInterpreterState && PyThread_get_key_value(autoTLSkey) == tstate)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	318 PyThread_delete_key_value(autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	319 PyEval_ReleaseLock();
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	320 }
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	321 #endif /* WITH_THREAD */
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	322
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	323
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	324 PyThreadState *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	325 PyThreadState_Get(void)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	326 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	327 if (_PyThreadState_Current == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	328 Py_FatalError("PyThreadState_Get: no current thread");
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	329
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	330 return _PyThreadState_Current;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	331 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	332
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	333
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	334 PyThreadState *
37606 f448d0075691 more low-hanging fruit to make code compile under a C++ compiler. Not Anthony Baxter <anthonybaxter@gmail.com> parents: 36683 diff changeset	335 PyThreadState_Swap(PyThreadState *newts)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	336 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	337 PyThreadState *oldts = _PyThreadState_Current;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	338
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	339 _PyThreadState_Current = newts;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	340 /* It should not be possible for more than one thread state
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	341 to be used for a thread. Check this the best we can in debug
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	342 builds.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	343 */
28914 33475661823d Patch #729300: Disable error message if Python is not built for threads. Martin v. Löwis <martin@v.loewis.de> parents: 28694 diff changeset	344 #if defined(Py_DEBUG) && defined(WITH_THREAD)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	345 if (newts) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	346 /* This can be called from PyEval_RestoreThread(). Similar
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	347 to it, we need to ensure errno doesn't change.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	348 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	349 int err = errno;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	350 PyThreadState *check = PyGILState_GetThisThreadState();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	351 if (check && check->interp == newts->interp && check != newts)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	352 Py_FatalError("Invalid thread state for this thread");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	353 errno = err;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	354 }
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	355 #endif
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	356 return oldts;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	357 }
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	358
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	359 /* An extension mechanism to store arbitrary additional per-thread state.
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	360 PyThreadState_GetDict() returns a dictionary that can be used to hold such
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	361 state; the caller should pick a unique key and store its state there. If
28616 4f0b7acffc7d - pythunrun.c, Py_Finalize(): move the call to _Py_PrintReferences() Guido van Rossum <guido@python.org> parents: 28325 diff changeset	362 PyThreadState_GetDict() returns NULL, an exception has not been raised
4f0b7acffc7d - pythunrun.c, Py_Finalize(): move the call to _Py_PrintReferences() Guido van Rossum <guido@python.org> parents: 28325 diff changeset	363 and the caller should assume no per-thread state is available. */
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	364
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	365 PyObject *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	366 PyThreadState_GetDict(void)
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	367 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	368 if (_PyThreadState_Current == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	369 return NULL;
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	370
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	371 if (_PyThreadState_Current->dict == NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	372 PyObject *d;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	373 _PyThreadState_Current->dict = d = PyDict_New();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	374 if (d == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	375 PyErr_Clear();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	376 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	377 return _PyThreadState_Current->dict;
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	378 }
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	379
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	380
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	381 /* Asynchronously raise an exception in a thread.
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	382 Requested by Just van Rossum and Alex Martelli.
34568 ff3ca656c281 Backport 2.39: Guido van Rossum <guido@python.org> parents: 33940 diff changeset	383 To prevent naive misuse, you must write your own extension
39431 de9e1a5dca93 Followup to bug #1069160. Tim Peters <tim.peters@gmail.com> parents: 39129 diff changeset	384 to call this, or use ctypes. Must be called with the GIL held.
de9e1a5dca93 Followup to bug #1069160. Tim Peters <tim.peters@gmail.com> parents: 39129 diff changeset	385 Returns the number of tstates modified (normally 1, but 0 if `id` didn't
de9e1a5dca93 Followup to bug #1069160. Tim Peters <tim.peters@gmail.com> parents: 39129 diff changeset	386 match any known thread id). Can be called with exc=NULL to clear an
de9e1a5dca93 Followup to bug #1069160. Tim Peters <tim.peters@gmail.com> parents: 39129 diff changeset	387 existing async exception. This raises no exceptions. */
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	388
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	389 int
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	390 PyThreadState_SetAsyncExc(long id, PyObject *exc) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	391 PyThreadState *tstate = PyThreadState_GET();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	392 PyInterpreterState *interp = tstate->interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	393 PyThreadState *p;
39431 de9e1a5dca93 Followup to bug #1069160. Tim Peters <tim.peters@gmail.com> parents: 39129 diff changeset	394
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	395 /* Although the GIL is held, a few C API functions can be called
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	396 * without the GIL held, and in particular some that create and
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	397 * destroy thread and interpreter states. Those can mutate the
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	398 * list of thread states we're traversing, so to prevent that we lock
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	399 * head_mutex for the duration.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	400 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	401 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	402 for (p = interp->tstate_head; p != NULL; p = p->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	403 if (p->thread_id == id) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	404 /* Tricky: we need to decref the current value
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	405 * (if any) in p->async_exc, but that can in turn
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	406 * allow arbitrary Python code to run, including
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	407 * perhaps calls to this function. To prevent
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	408 * deadlock, we need to release head_mutex before
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	409 * the decref.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	410 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	411 PyObject *old_exc = p->async_exc;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	412 Py_XINCREF(exc);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	413 p->async_exc = exc;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	414 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	415 Py_XDECREF(old_exc);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	416 return 1;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	417 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	418 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	419 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	420 return 0;
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	421 }
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	422
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	423
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	424 /* Routines for advanced debuggers, requested by David Beazley.
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	425 Don't use unless you know what you are doing! */
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	426
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	427 PyInterpreterState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	428 PyInterpreterState_Head(void)
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	429 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	430 return interp_head;
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	431 }
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	432
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	433 PyInterpreterState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	434 PyInterpreterState_Next(PyInterpreterState *interp) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	435 return interp->next;
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	436 }
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	437
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	438 PyThreadState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	439 PyInterpreterState_ThreadHead(PyInterpreterState *interp) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	440 return interp->tstate_head;
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	441 }
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	442
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	443 PyThreadState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	444 PyThreadState_Next(PyThreadState *tstate) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	445 return tstate->next;
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	446 }
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	447
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	448 /* The implementation of sys._current_frames(). This is intended to be
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	449 called with the GIL held, as it will be when called via
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	450 sys._current_frames(). It's possible it would work fine even without
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	451 the GIL held, but haven't thought enough about that.
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	452 */
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	453 PyObject *
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	454 _PyThread_CurrentFrames(void)
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	455 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	456 PyObject *result;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	457 PyInterpreterState *i;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	458
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	459 result = PyDict_New();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	460 if (result == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	461 return NULL;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	462
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	463 /* for i in all interpreters:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	464 * for t in all of i's thread states:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	465 * if t's frame isn't NULL, map t's id to its frame
68588 cd8d3c2d3bce #11565: Fix several typos. Patch by Piotr Kasprzyk. Ezio Melotti <ezio.melotti@gmail.com> parents: 68256 diff changeset	466 * Because these lists can mutate even when the GIL is held, we
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	467 * need to grab head_mutex for the duration.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	468 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	469 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	470 for (i = interp_head; i != NULL; i = i->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	471 PyThreadState *t;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	472 for (t = i->tstate_head; t != NULL; t = t->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	473 PyObject *id;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	474 int stat;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	475 struct _frame *frame = t->frame;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	476 if (frame == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	477 continue;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	478 id = PyInt_FromLong(t->thread_id);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	479 if (id == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	480 goto Fail;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	481 stat = PyDict_SetItem(result, id, (PyObject *)frame);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	482 Py_DECREF(id);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	483 if (stat < 0)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	484 goto Fail;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	485 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	486 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	487 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	488 return result;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	489
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	490 Fail:
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	491 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	492 Py_DECREF(result);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	493 return NULL;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	494 }
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	495
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	496 /* Python "auto thread state" API. */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	497 #ifdef WITH_THREAD
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	498
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	499 /* Keep this as a static, as it is not reliable! It can only
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	500 ever be compared to the state for the current thread.
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	501 * If not equal, then it doesn't matter that the actual
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	502 value may change immediately after comparison, as it can't
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	503 possibly change to the current thread's state.
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	504 * If equal, then the current thread holds the lock, so the value can't
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	505 change until we yield the lock.
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	506 */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	507 static int
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	508 PyThreadState_IsCurrent(PyThreadState *tstate)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	509 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	510 /* Must be the tstate for this thread */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	511 assert(PyGILState_GetThisThreadState()==tstate);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	512 /* On Windows at least, simple reads and writes to 32 bit values
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	513 are atomic.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	514 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	515 return tstate == _PyThreadState_Current;
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	516 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	517
33698 090ffcb83f0a Trim trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32301 diff changeset	518 /* Internal initialization/finalization functions called by
090ffcb83f0a Trim trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32301 diff changeset	519 Py_Initialize/Py_Finalize
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	520 */
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	521 void
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	522 _PyGILState_Init(PyInterpreterState i, PyThreadState t)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	523 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	524 assert(i && t); /* must init with valid states */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	525 autoTLSkey = PyThread_create_key();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	526 autoInterpreterState = i;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	527 assert(PyThread_get_key_value(autoTLSkey) == NULL);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	528 assert(t->gilstate_counter == 0);
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	529
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	530 _PyGILState_NoteThreadState(t);
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	531 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	532
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	533 void
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	534 _PyGILState_Fini(void)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	535 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	536 PyThread_delete_key(autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	537 autoInterpreterState = NULL;
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	538 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	539
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	540 /* When a thread state is created for a thread by some mechanism other than
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	541 PyGILState_Ensure, it's important that the GILState machinery knows about
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	542 it so it doesn't try to create another thread state for the thread (this is
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	543 a better fix for SF bug #1010677 than the first one attempted).
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	544 */
39830 0bac40e4d0c6 Forward-port of rev. 51857: Georg Brandl <georg@python.org> parents: 39431 diff changeset	545 static void
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	546 _PyGILState_NoteThreadState(PyThreadState* tstate)
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	547 {
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	548 /* If autoTLSkey isn't initialized, this must be the very first
f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	549 threadstate created in Py_Initialize(). Don't do anything for now
f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	550 (we'll be back here when _PyGILState_Init is called). */
f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	551 if (!autoInterpreterState)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	552 return;
39056 b6fd499e4343 After approval from Anthony, merge the tim-current_frames Tim Peters <tim.peters@gmail.com> parents: 37752 diff changeset	553
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	554 /* Stick the thread state for this thread in thread local storage.
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	555
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	556 The only situation where you can legitimately have more than one
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	557 thread state for an OS level thread is when there are multiple
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	558 interpreters, when:
39056 b6fd499e4343 After approval from Anthony, merge the tim-current_frames Tim Peters <tim.peters@gmail.com> parents: 37752 diff changeset	559
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	560 a) You shouldn't really be using the PyGILState_ APIs anyway,
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	561 and:
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	562
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	563 b) The slightly odd way PyThread_set_key_value works (see
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	564 comments by its implementation) means that the first thread
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	565 state created for that given OS level thread will "win",
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	566 which seems reasonable behaviour.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	567 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	568 if (PyThread_set_key_value(autoTLSkey, (void *)tstate) < 0)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	569 Py_FatalError("Couldn't create autoTLSkey mapping");
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	570
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	571 /* PyGILState_Release must not try to delete this thread state. */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	572 tstate->gilstate_counter = 1;
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	573 }
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	574
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	575 /* The public functions */
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	576 PyThreadState *
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	577 PyGILState_GetThisThreadState(void)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	578 {
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	579 if (autoInterpreterState == NULL)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	580 return NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	581 return (PyThreadState *)PyThread_get_key_value(autoTLSkey);
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	582 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	583
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	584 PyGILState_STATE
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	585 PyGILState_Ensure(void)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	586 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	587 int current;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	588 PyThreadState *tcur;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	589 /* Note that we do not auto-init Python here - apart from
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	590 potential races with 2 threads auto-initializing, pep-311
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	591 spells out other issues. Embedders are expected to have
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	592 called Py_Initialize() and usually PyEval_InitThreads().
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	593 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	594 assert(autoInterpreterState); /* Py_Initialize() hasn't been called! */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	595 tcur = (PyThreadState *)PyThread_get_key_value(autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	596 if (tcur == NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	597 /* Create a new thread state for this thread */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	598 tcur = PyThreadState_New(autoInterpreterState);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	599 if (tcur == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	600 Py_FatalError("Couldn't create thread-state for new thread");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	601 /* This is our thread state! We'll need to delete it in the
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	602 matching call to PyGILState_Release(). */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	603 tcur->gilstate_counter = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	604 current = 0; /* new thread state is never current */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	605 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	606 else
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	607 current = PyThreadState_IsCurrent(tcur);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	608 if (current == 0)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	609 PyEval_RestoreThread(tcur);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	610 /* Update our counter in the thread-state - no need for locks:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	611 - tcur will remain valid as we hold the GIL.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	612 - the counter is safe as we are the only thread "allowed"
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	613 to modify this value
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	614 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	615 ++tcur->gilstate_counter;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	616 return current ? PyGILState_LOCKED : PyGILState_UNLOCKED;
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	617 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	618
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	619 void
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	620 PyGILState_Release(PyGILState_STATE oldstate)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	621 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	622 PyThreadState tcur = (PyThreadState )PyThread_get_key_value(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	623 autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	624 if (tcur == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	625 Py_FatalError("auto-releasing thread-state, "
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	626 "but no thread-state for this thread");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	627 /* We must hold the GIL and have our thread state current */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	628 /* XXX - remove the check - the assert should be fine,
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	629 but while this is very new (April 2003), the extra check
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	630 by release-only users can't hurt.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	631 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	632 if (! PyThreadState_IsCurrent(tcur))
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	633 Py_FatalError("This thread state must be current when releasing");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	634 assert(PyThreadState_IsCurrent(tcur));
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	635 --tcur->gilstate_counter;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	636 assert(tcur->gilstate_counter >= 0); /* illegal counter value */
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	637
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	638 /* If we're going to destroy this thread-state, we must
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	639 * clear it while the GIL is held, as destructors may run.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	640 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	641 if (tcur->gilstate_counter == 0) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	642 /* can't have been locked when we created it */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	643 assert(oldstate == PyGILState_UNLOCKED);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	644 PyThreadState_Clear(tcur);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	645 /* Delete the thread-state. Note this releases the GIL too!
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	646 * It's vital that the GIL be held here, to avoid shutdown
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	647 * races; see bugs 225673 and 1061968 (that nasty bug has a
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	648 * habit of coming back).
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	649 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	650 PyThreadState_DeleteCurrent();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	651 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	652 /* Release the lock if necessary */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	653 else if (oldstate == PyGILState_UNLOCKED)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	654 PyEval_SaveThread();
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	655 }
37655 2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	656
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	657 #ifdef __cplusplus
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	658 }
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	659 #endif
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	660
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	661 #endif /* WITH_THREAD */
37655 2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	662
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	663

Mercurial > cpython-lru_cache-weakref

annotate Python/pystate.c @ 68588:cd8d3c2d3bce 2.7