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

annotate Python/pystate.c @ 76287:508ae5d27c2c 2.7

take linkage def outside of WITH_THREAD conditional (closes #14569)

author	Benjamin Peterson <benjamin@python.org>
date	Fri, 13 Apr 2012 11:58:27 -0400
parents	ee4fe16d9b48
children	ab157c169f6e

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
76287 508ae5d27c2c take linkage def outside of WITH_THREAD conditional (closes #14569) Benjamin Peterson <benjamin@python.org> parents: 72897 diff changeset	25 #ifdef __cplusplus
508ae5d27c2c take linkage def outside of WITH_THREAD conditional (closes #14569) Benjamin Peterson <benjamin@python.org> parents: 72897 diff changeset	26 extern "C" {
508ae5d27c2c take linkage def outside of WITH_THREAD conditional (closes #14569) Benjamin Peterson <benjamin@python.org> parents: 72897 diff changeset	27 #endif
18689 064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	28
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	29 #ifdef WITH_THREAD
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	30 #include "pythread.h"
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	31 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	32 #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	33 #define HEAD_LOCK() PyThread_acquire_lock(head_mutex, WAIT_LOCK)
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	34 #define HEAD_UNLOCK() PyThread_release_lock(head_mutex)
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	35
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	36 /* The single PyInterpreterState used by this process'
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	37 GILState implementation
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	38 */
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	39 static PyInterpreterState *autoInterpreterState = NULL;
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	40 static int autoTLSkey = 0;
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	41 #else
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	42 #define HEAD_INIT() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	43 #define HEAD_LOCK() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	44 #define HEAD_UNLOCK() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	45 #endif
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	46
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	47 static PyInterpreterState *interp_head = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	48
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	49 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	50 PyThreadFrameGetter _PyThreadState_GetFrame = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	51
35661 85651eb3d9a9 Forward port bugfix: Michael W. Hudson <mwh@python.net> parents: 35117 diff changeset	52 #ifdef WITH_THREAD
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	53 static void _PyGILState_NoteThreadState(PyThreadState* tstate);
35661 85651eb3d9a9 Forward port bugfix: Michael W. Hudson <mwh@python.net> parents: 35117 diff changeset	54 #endif
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	55
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	56
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	57 PyInterpreterState *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	58 PyInterpreterState_New(void)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	59 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	60 PyInterpreterState interp = (PyInterpreterState )
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	61 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	62
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	63 if (interp != NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	64 HEAD_INIT();
39129 f2031f15d99d Handle allocation failures gracefully. Found with failmalloc. Neal Norwitz <nnorwitz@gmail.com> parents: 39118 diff changeset	65 #ifdef WITH_THREAD
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	66 if (head_mutex == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	67 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	68 #endif
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	69 interp->modules = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	70 interp->modules_reloading = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	71 interp->sysdict = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	72 interp->builtins = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	73 interp->tstate_head = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	74 interp->codec_search_path = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	75 interp->codec_search_cache = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	76 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	77 #ifdef HAVE_DLOPEN
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	78 #ifdef RTLD_NOW
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	79 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	80 #else
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	81 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	82 #endif
064de84385ca Patch #412229: Add functions sys.getdlopenflags and sys.setdlopenflags. Martin v. Löwis <martin@v.loewis.de> parents: 18374 diff changeset	83 #endif
32301 41c59d80bbc5 Patch #510695: Add TSC profiling for the VM. Martin v. Löwis <martin@v.loewis.de> parents: 31797 diff changeset	84 #ifdef WITH_TSC
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	85 interp->tscdump = 0;
32301 41c59d80bbc5 Patch #510695: Add TSC profiling for the VM. Martin v. Löwis <martin@v.loewis.de> parents: 31797 diff changeset	86 #endif
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	87
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	88 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	89 interp->next = interp_head;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	90 interp_head = interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	91 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	92 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	93
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	94 return interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	95 }
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 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	99 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	100 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	101 PyThreadState *p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	102 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	103 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	104 PyThreadState_Clear(p);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	105 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	106 Py_CLEAR(interp->codec_search_path);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	107 Py_CLEAR(interp->codec_search_cache);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	108 Py_CLEAR(interp->codec_error_registry);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	109 Py_CLEAR(interp->modules);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	110 Py_CLEAR(interp->modules_reloading);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	111 Py_CLEAR(interp->sysdict);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	112 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	113 }
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 static void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	117 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	118 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	119 PyThreadState *p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	120 /* 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	121 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	122 while ((p = interp->tstate_head) != NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	123 PyThreadState_Delete(p);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	124 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	125 }
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 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	129 PyInterpreterState_Delete(PyInterpreterState *interp)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	130 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	131 PyInterpreterState **p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	132 zapthreads(interp);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	133 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	134 for (p = &interp_head; ; p = &(*p)->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	135 if (*p == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	136 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	137 "PyInterpreterState_Delete: invalid interp");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	138 if (*p == interp)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	139 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	140 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	141 if (interp->tstate_head != NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	142 Py_FatalError("PyInterpreterState_Delete: remaining threads");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	143 *p = interp->next;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	144 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	145 free(interp);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	146 }
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
26109 e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	149 /* Default implementation for _PyThreadState_GetFrame */
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	150 static struct _frame *
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	151 threadstate_getframe(PyThreadState *self)
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	152 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	153 return self->frame;
26109 e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	154 }
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	155
59315 7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	156 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	157 new_threadstate(PyInterpreterState *interp, int init)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	158 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	159 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	160
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	161 if (_PyThreadState_GetFrame == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	162 _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	163
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	164 if (tstate != NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	165 tstate->interp = interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	166
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	167 tstate->frame = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	168 tstate->recursion_depth = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	169 tstate->tracing = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	170 tstate->use_tracing = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	171 tstate->tick_counter = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	172 tstate->gilstate_counter = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	173 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	174 #ifdef WITH_THREAD
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	175 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	176 #else
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	177 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	178 #endif
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	179
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	180 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	181
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	182 tstate->curexc_type = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	183 tstate->curexc_value = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	184 tstate->curexc_traceback = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	185
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	186 tstate->exc_type = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	187 tstate->exc_value = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	188 tstate->exc_traceback = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	189
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	190 tstate->c_profilefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	191 tstate->c_tracefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	192 tstate->c_profileobj = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	193 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	194
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	195 if (init)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	196 _PyThreadState_Init(tstate);
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	197
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	198 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	199 tstate->next = interp->tstate_head;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	200 interp->tstate_head = tstate;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	201 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	202 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	203
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	204 return tstate;
26109 e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	205 }
e61b946474df Assorted patches from Armin Rigo: Michael W. Hudson <mwh@python.net> parents: 25111 diff changeset	206
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	207 PyThreadState *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	208 PyThreadState_New(PyInterpreterState *interp)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	209 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	210 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	211 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	212
59315 7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	213 PyThreadState *
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_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	215 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	216 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	217 }
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 void
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	220 _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	221 {
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	222 #ifdef WITH_THREAD
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	223 _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	224 #endif
7f500641c06a Issue #7544: Preallocate thread memory before creating the thread to avoid a Victor Stinner <victor.stinner@haypocalc.com> parents: 48167 diff changeset	225 }
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	226
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	227 void
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	228 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	229 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	230 if (Py_VerboseFlag && tstate->frame != NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	231 fprintf(stderr,
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	232 "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	233
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	234 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	235
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	236 Py_CLEAR(tstate->dict);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	237 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	238
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	239 Py_CLEAR(tstate->curexc_type);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	240 Py_CLEAR(tstate->curexc_value);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	241 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	242
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	243 Py_CLEAR(tstate->exc_type);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	244 Py_CLEAR(tstate->exc_value);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	245 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	246
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	247 tstate->c_profilefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	248 tstate->c_tracefunc = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	249 Py_CLEAR(tstate->c_profileobj);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	250 Py_CLEAR(tstate->c_traceobj);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	251 }
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
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	254 /* 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	255 static void
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	256 tstate_delete_common(PyThreadState *tstate)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	257 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	258 PyInterpreterState *interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	259 PyThreadState **p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	260 PyThreadState *prev_p = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	261 if (tstate == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	262 Py_FatalError("PyThreadState_Delete: NULL tstate");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	263 interp = tstate->interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	264 if (interp == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	265 Py_FatalError("PyThreadState_Delete: NULL interp");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	266 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	267 for (p = &interp->tstate_head; ; p = &(*p)->next) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	268 if (*p == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	269 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	270 "PyThreadState_Delete: invalid tstate");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	271 if (*p == tstate)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	272 break;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	273 /* 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	274 * 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	275 * 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	276 * in thread.c find_key(). */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	277 if (*p == prev_p)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	278 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	279 "PyThreadState_Delete: small circular list(!)"
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	280 " and tstate not found.");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	281 prev_p = *p;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	282 if ((*p)->next == interp->tstate_head)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	283 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	284 "PyThreadState_Delete: circular list(!) and"
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	285 " tstate not found.");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	286 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	287 *p = tstate->next;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	288 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	289 free(tstate);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	290 }
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
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	293 void
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	294 PyThreadState_Delete(PyThreadState *tstate)
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	295 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	296 if (tstate == _PyThreadState_Current)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	297 Py_FatalError("PyThreadState_Delete: tstate is still current");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	298 tstate_delete_common(tstate);
36683 da2a1049215d Patch 1413181, by Gabriel Becedillas. Tim Peters <tim.peters@gmail.com> parents: 35661 diff changeset	299 #ifdef WITH_THREAD
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	300 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	301 PyThread_delete_key_value(autoTLSkey);
36683 da2a1049215d Patch 1413181, by Gabriel Becedillas. Tim Peters <tim.peters@gmail.com> parents: 35661 diff changeset	302 #endif /* WITH_THREAD */
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	303 }
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 #ifdef WITH_THREAD
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	307 void
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	308 PyThreadState_DeleteCurrent()
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	309 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	310 PyThreadState *tstate = _PyThreadState_Current;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	311 if (tstate == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	312 Py_FatalError(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	313 "PyThreadState_DeleteCurrent: no current tstate");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	314 _PyThreadState_Current = NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	315 tstate_delete_common(tstate);
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	316 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	317 PyThread_delete_key_value(autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	318 PyEval_ReleaseLock();
16139 d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	319 }
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	320 #endif /* WITH_THREAD */
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	321
d96ce9708c00 Add a new API, PyThreadState_DeleteCurrent() that combines Guido van Rossum <guido@python.org> parents: 14378 diff changeset	322
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	323 PyThreadState *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	324 PyThreadState_Get(void)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	325 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	326 if (_PyThreadState_Current == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	327 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	328
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	329 return _PyThreadState_Current;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	330 }
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 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	334 PyThreadState_Swap(PyThreadState *newts)
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	335 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	336 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	337
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	338 _PyThreadState_Current = newts;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	339 /* 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	340 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	341 builds.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	342 */
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	343 #if defined(Py_DEBUG) && defined(WITH_THREAD)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	344 if (newts) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	345 /* This can be called from PyEval_RestoreThread(). Similar
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	346 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	347 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	348 int err = errno;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	349 PyThreadState *check = PyGILState_GetThisThreadState();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	350 if (check && check->interp == newts->interp && check != newts)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	351 Py_FatalError("Invalid thread state for this thread");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	352 errno = err;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	353 }
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	354 #endif
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	355 return oldts;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	356 }
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	357
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	358 /* 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	359 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	360 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	361 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	362 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	363
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	364 PyObject *
13658 f79434ee41fa Mass ANSIfication of function definitions. Doesn't cover all 'extern' Thomas Wouters <thomas@python.org> parents: 13256 diff changeset	365 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	366 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	367 if (_PyThreadState_Current == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	368 return NULL;
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	369
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	370 if (_PyThreadState_Current->dict == NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	371 PyObject *d;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	372 _PyThreadState_Current->dict = d = PyDict_New();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	373 if (d == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	374 PyErr_Clear();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	375 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	376 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	377 }
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	378
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	379
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	380 /* Asynchronously raise an exception in a thread.
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	381 Requested by Just van Rossum and Alex Martelli.
34568 ff3ca656c281 Backport 2.39: Guido van Rossum <guido@python.org> parents: 33940 diff changeset	382 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	383 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	384 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	385 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	386 existing async exception. This raises no exceptions. */
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	387
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	388 int
fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	389 PyThreadState_SetAsyncExc(long id, PyObject *exc) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	390 PyThreadState *tstate = PyThreadState_GET();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	391 PyInterpreterState *interp = tstate->interp;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	392 PyThreadState *p;
39431 de9e1a5dca93 Followup to bug #1069160. Tim Peters <tim.peters@gmail.com> parents: 39129 diff changeset	393
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	394 /* 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	395 * 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	396 * 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	397 * 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	398 * head_mutex for the duration.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	399 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	400 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	401 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	402 if (p->thread_id == id) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	403 /* Tricky: we need to decref the current value
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	404 * (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	405 * allow arbitrary Python code to run, including
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	406 * perhaps calls to this function. To prevent
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	407 * deadlock, we need to release head_mutex before
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	408 * the decref.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	409 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	410 PyObject *old_exc = p->async_exc;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	411 Py_XINCREF(exc);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	412 p->async_exc = exc;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	413 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	414 Py_XDECREF(old_exc);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	415 return 1;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	416 }
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 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	419 return 0;
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	420 }
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
18733 b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	423 /* 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	424 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	425
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	426 PyInterpreterState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	427 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	428 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	429 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	430 }
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 PyInterpreterState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	433 PyInterpreterState_Next(PyInterpreterState *interp) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	434 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	435 }
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 PyThreadState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	438 PyInterpreterState_ThreadHead(PyInterpreterState *interp) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	439 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	440 }
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 PyThreadState *
b0329649b8cf Add a low-level API to access interpreters, for David Beazley. Guido van Rossum <guido@python.org> parents: 18689 diff changeset	443 PyThreadState_Next(PyThreadState *tstate) {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	444 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	445 }
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	446
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	447 /* 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	448 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	449 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	450 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	451 */
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	452 PyObject *
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	453 _PyThread_CurrentFrames(void)
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	454 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	455 PyObject *result;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	456 PyInterpreterState *i;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	457
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	458 result = PyDict_New();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	459 if (result == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	460 return NULL;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	461
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	462 /* for i in all interpreters:
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	463 * 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	464 * 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	465 * 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	466 * need to grab head_mutex for the duration.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	467 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	468 HEAD_LOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	469 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	470 PyThreadState *t;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	471 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	472 PyObject *id;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	473 int stat;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	474 struct _frame *frame = t->frame;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	475 if (frame == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	476 continue;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	477 id = PyInt_FromLong(t->thread_id);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	478 if (id == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	479 goto Fail;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	480 stat = PyDict_SetItem(result, id, (PyObject *)frame);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	481 Py_DECREF(id);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	482 if (stat < 0)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	483 goto Fail;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	484 }
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 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	487 return result;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	488
85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	489 Fail:
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	490 HEAD_UNLOCK();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	491 Py_DECREF(result);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	492 return NULL;
39118 85b23965ec4c SF bug 1524317: configure --without-threads fails to build Tim Peters <tim.peters@gmail.com> parents: 39056 diff changeset	493 }
29643 fa97293533a9 Add PyThreadState_SetAsyncExc(long, PyObject ). Guido van Rossum <guido@python.org>* parents: 28914 diff changeset	494
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	495 /* 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	496 #ifdef WITH_THREAD
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	497
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	498 /* 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	499 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	500 * 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	501 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	502 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	503 * 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	504 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	505 */
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	506 static int
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	507 PyThreadState_IsCurrent(PyThreadState *tstate)
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	508 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	509 /* Must be the tstate for this thread */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	510 assert(PyGILState_GetThisThreadState()==tstate);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	511 /* 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	512 are atomic.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	513 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	514 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	515 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	516
33698 090ffcb83f0a Trim trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32301 diff changeset	517 /* Internal initialization/finalization functions called by
090ffcb83f0a Trim trailing whitespace. Tim Peters <tim.peters@gmail.com> parents: 32301 diff changeset	518 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	519 */
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	520 void
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	521 _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	522 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	523 assert(i && t); /* must init with valid states */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	524 autoTLSkey = PyThread_create_key();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	525 autoInterpreterState = i;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	526 assert(PyThread_get_key_value(autoTLSkey) == NULL);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	527 assert(t->gilstate_counter == 0);
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	528
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	529 _PyGILState_NoteThreadState(t);
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	530 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	531
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	532 void
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	533 _PyGILState_Fini(void)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	534 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	535 PyThread_delete_key(autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	536 autoInterpreterState = NULL;
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	537 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	538
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	539 /* 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	540 PyGILState_Ensure, it's important that the GILState machinery knows about
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	541 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	542 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	543 */
39830 0bac40e4d0c6 Forward-port of rev. 51857: Georg Brandl <georg@python.org> parents: 39431 diff changeset	544 static void
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	545 _PyGILState_NoteThreadState(PyThreadState* tstate)
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	546 {
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	547 /* 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	548 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	549 (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	550 if (!autoInterpreterState)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	551 return;
39056 b6fd499e4343 After approval from Anthony, merge the tim-current_frames Tim Peters <tim.peters@gmail.com> parents: 37752 diff changeset	552
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	553 /* 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	554
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	555 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	556 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	557 interpreters, when:
39056 b6fd499e4343 After approval from Anthony, merge the tim-current_frames Tim Peters <tim.peters@gmail.com> parents: 37752 diff changeset	558
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	559 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	560 and:
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	561
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	562 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	563 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	564 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	565 which seems reasonable behaviour.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	566 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	567 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	568 Py_FatalError("Couldn't create autoTLSkey mapping");
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	569
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	570 /* 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	571 tstate->gilstate_counter = 1;
35117 7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	572 }
7ea2be2c0e1d Fix bug: Michael W. Hudson <mwh@python.net> parents: 35095 diff changeset	573
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	574 /* The public functions */
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	575 PyThreadState *
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	576 PyGILState_GetThisThreadState(void)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	577 {
64562 f8f66ebcd5b1 Merged revisions 84623 via svnmerge from Antoine Pitrou <solipsis@pitrou.net> parents: 61463 diff changeset	578 if (autoInterpreterState == NULL)
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	579 return NULL;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	580 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	581 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	582
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	583 PyGILState_STATE
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	584 PyGILState_Ensure(void)
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	585 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	586 int current;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	587 PyThreadState *tcur;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	588 /* 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	589 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	590 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	591 called Py_Initialize() and usually PyEval_InitThreads().
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	592 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	593 assert(autoInterpreterState); /* Py_Initialize() hasn't been called! */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	594 tcur = (PyThreadState *)PyThread_get_key_value(autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	595 if (tcur == NULL) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	596 /* Create a new thread state for this thread */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	597 tcur = PyThreadState_New(autoInterpreterState);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	598 if (tcur == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	599 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	600 /* 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	601 matching call to PyGILState_Release(). */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	602 tcur->gilstate_counter = 0;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	603 current = 0; /* new thread state is never current */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	604 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	605 else
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	606 current = PyThreadState_IsCurrent(tcur);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	607 if (current == 0)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	608 PyEval_RestoreThread(tcur);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	609 /* 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	610 - 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	611 - 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	612 to modify this value
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	613 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	614 ++tcur->gilstate_counter;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	615 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	616 }
a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	617
33699 0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	618 void
0c26db381673 Style guide & consistency changes. No semantic changes. Tim Peters <tim.peters@gmail.com> parents: 33698 diff changeset	619 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	620 {
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	621 PyThreadState tcur = (PyThreadState )PyThread_get_key_value(
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	622 autoTLSkey);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	623 if (tcur == NULL)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	624 Py_FatalError("auto-releasing thread-state, "
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	625 "but no thread-state for this thread");
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	626 /* 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	627 /* 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	628 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	629 by release-only users can't hurt.
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	630 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	631 if (! PyThreadState_IsCurrent(tcur))
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	632 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	633 assert(PyThreadState_IsCurrent(tcur));
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	634 --tcur->gilstate_counter;
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	635 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	636
61463 fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	637 /* 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	638 * 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	639 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	640 if (tcur->gilstate_counter == 0) {
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	641 /* 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	642 assert(oldstate == PyGILState_UNLOCKED);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	643 PyThreadState_Clear(tcur);
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	644 /* 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	645 * 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	646 * 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	647 * habit of coming back).
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	648 */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	649 PyThreadState_DeleteCurrent();
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	650 }
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	651 /* Release the lock if necessary */
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	652 else if (oldstate == PyGILState_UNLOCKED)
fd25030223b0 Untabify C files. Will watch buildbots. Antoine Pitrou <solipsis@pitrou.net> parents: 59315 diff changeset	653 PyEval_SaveThread();
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	654 }
37655 2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	655
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	656 #ifdef __cplusplus
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	657 }
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	658 #endif
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	659
28694 a4154dd5939a New PyGILState_ API - implements pep 311, from patch 684256. Mark Hammond <mhammond@skippinet.com.au> parents: 28616 diff changeset	660 #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	661
2f3f2e32dfd9 spread the extern "C" { } magic pixie dust around. Python itself builds now Anthony Baxter <anthonybaxter@gmail.com> parents: 37606 diff changeset	662

Mercurial > cpython-lru_cache-weakref

annotate Python/pystate.c @ 76287:508ae5d27c2c 2.7