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

annotate Python/pystate.c @ 11177:5f5fc1031957 legacy-trunk

Vladimir Marangozov fixes an AIX-specific problem, writing: """ Following up Robin Dunn's troubles with freeze, here's a patch that fixes an oddity regarding the import logic of shared modules on AIX. Symbol resolution of shared modules is now handled properly for the cases when the python library is linked to a binary with an arbitrary name. This includes the standard python[version] executable, but also applications that are embedding the python core (i.e. linked with libpython[version].a, the latter being static or shared). """

author	Guido van Rossum <guido@python.org>
date	Wed, 04 Aug 1999 18:00:12 +0000
parents	3b3c7b8ade7f
children	916fb024ce94

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 Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam,
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	3 The Netherlands.
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	4
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	5 All Rights Reserved
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	6
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	7 Permission to use, copy, modify, and distribute this software and its
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	8 documentation for any purpose and without fee is hereby granted,
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	9 provided that the above copyright notice appear in all copies and that
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	10 both that copyright notice and this permission notice appear in
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	11 supporting documentation, and that the names of Stichting Mathematisch
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	12 Centrum or CWI or Corporation for National Research Initiatives or
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	13 CNRI not be used in advertising or publicity pertaining to
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	14 distribution of the software without specific, written prior
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	15 permission.
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	16
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	17 While CWI is the initial source for this software, a modified version
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	18 is made available by the Corporation for National Research Initiatives
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	19 (CNRI) at the Internet address ftp://ftp.python.org.
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	20
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	21 STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	22 REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	23 MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	24 CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	25 DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	26 PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	27 TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	28 PERFORMANCE OF THIS SOFTWARE.
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	29
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	30 ******************************************************************/
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	31
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	32 /* 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	33
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	34 #include "Python.h"
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	35
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	36 #define ZAP(x) { \
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	37 PyObject tmp = (PyObject )(x); \
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	38 (x) = NULL; \
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	39 Py_XDECREF(tmp); \
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	40 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	41
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	42
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	43 #ifdef WITH_THREAD
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	44 #include "pythread.h"
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	45 static PyThread_type_lock head_mutex = NULL; /* Protects interp->tstate_head */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	46 #define HEAD_INIT() (head_mutex \|\| (head_mutex = PyThread_allocate_lock()))
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	47 #define HEAD_LOCK() PyThread_acquire_lock(head_mutex, WAIT_LOCK)
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	48 #define HEAD_UNLOCK() PyThread_release_lock(head_mutex)
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	49 #else
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	50 #define HEAD_INIT() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	51 #define HEAD_LOCK() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	52 #define HEAD_UNLOCK() /* Nothing */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	53 #endif
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	54
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	55 static PyInterpreterState *interp_head = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	56
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	57 PyThreadState *_PyThreadState_Current = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	58
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	59
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	60 PyInterpreterState *
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	61 PyInterpreterState_New()
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	62 {
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	63 PyInterpreterState *interp = PyMem_NEW(PyInterpreterState, 1);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	64
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	65 if (interp != NULL) {
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	66 HEAD_INIT();
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	67 interp->modules = NULL;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	68 interp->sysdict = NULL;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	69 interp->builtins = NULL;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	70 interp->checkinterval = 10;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	71 interp->tstate_head = NULL;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	72
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	73 interp->next = interp_head;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	74 interp_head = interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	75 }
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	76
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	77 return interp;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	78 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	79
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	80
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	81 void
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	82 PyInterpreterState_Clear(interp)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	83 PyInterpreterState *interp;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	84 {
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	85 PyThreadState *p;
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	86 HEAD_LOCK();
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	87 for (p = interp->tstate_head; p != NULL; p = p->next)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	88 PyThreadState_Clear(p);
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	89 HEAD_UNLOCK();
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	90 ZAP(interp->modules);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	91 ZAP(interp->sysdict);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	92 ZAP(interp->builtins);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	93 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	94
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	95
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	96 static void
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	97 zapthreads(interp)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	98 PyInterpreterState *interp;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	99 {
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	100 PyThreadState *p;
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	101 /* No need to lock the mutex here because this should only happen
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	102 when the threads are all really dead (XXX famous last words). */
3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	103 while ((p = interp->tstate_head) != NULL) {
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	104 PyThreadState_Delete(p);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	105 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	106 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	107
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	108
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	109 void
5567 932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	110 PyInterpreterState_Delete(interp)
932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	111 PyInterpreterState *interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	112 {
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	113 PyInterpreterState **p;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	114 zapthreads(interp);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	115 for (p = &interp_head; ; p = &(*p)->next) {
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	116 if (*p == NULL)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	117 Py_FatalError(
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	118 "PyInterpreterState_Delete: invalid interp");
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	119 if (*p == interp)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	120 break;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	121 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	122 if (interp->tstate_head != NULL)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	123 Py_FatalError("PyInterpreterState_Delete: remaining threads");
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	124 *p = interp->next;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	125 PyMem_DEL(interp);
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	126 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	127
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	128
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	129 PyThreadState *
5567 932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	130 PyThreadState_New(interp)
932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	131 PyInterpreterState *interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	132 {
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	133 PyThreadState *tstate = PyMem_NEW(PyThreadState, 1);
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	134
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	135 if (tstate != NULL) {
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	136 tstate->interp = interp;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	137
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	138 tstate->frame = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	139 tstate->recursion_depth = 0;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	140 tstate->ticker = 0;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	141 tstate->tracing = 0;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	142
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	143 tstate->dict = NULL;
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	144
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	145 tstate->curexc_type = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	146 tstate->curexc_value = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	147 tstate->curexc_traceback = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	148
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	149 tstate->exc_type = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	150 tstate->exc_value = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	151 tstate->exc_traceback = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	152
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	153 tstate->sys_profilefunc = NULL;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	154 tstate->sys_tracefunc = NULL;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	155
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	156 HEAD_LOCK();
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	157 tstate->next = interp->tstate_head;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	158 interp->tstate_head = tstate;
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	159 HEAD_UNLOCK();
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	160 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	161
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	162 return tstate;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	163 }
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	164
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	165
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	166 void
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	167 PyThreadState_Clear(tstate)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	168 PyThreadState *tstate;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	169 {
6549 a8e3b2e9f5d2 The warning about thread still having a frame now only happens in Guido van Rossum <guido@python.org> parents: 6124 diff changeset	170 if (Py_VerboseFlag && tstate->frame != NULL)
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	171 fprintf(stderr,
6124 cc2c84769636 Added missing newline to warning msg Guido van Rossum <guido@python.org> parents: 5926 diff changeset	172 "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	173
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	174 ZAP(tstate->frame);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	175
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	176 ZAP(tstate->dict);
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	177
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	178 ZAP(tstate->curexc_type);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	179 ZAP(tstate->curexc_value);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	180 ZAP(tstate->curexc_traceback);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	181
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	182 ZAP(tstate->exc_type);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	183 ZAP(tstate->exc_value);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	184 ZAP(tstate->exc_traceback);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	185
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	186 ZAP(tstate->sys_profilefunc);
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	187 ZAP(tstate->sys_tracefunc);
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	188 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	189
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	190
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	191 void
5567 932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	192 PyThreadState_Delete(tstate)
932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	193 PyThreadState *tstate;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	194 {
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	195 PyInterpreterState *interp;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	196 PyThreadState **p;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	197 if (tstate == NULL)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	198 Py_FatalError("PyThreadState_Delete: NULL tstate");
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	199 if (tstate == _PyThreadState_Current)
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	200 Py_FatalError("PyThreadState_Delete: tstate is still current");
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	201 interp = tstate->interp;
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	202 if (interp == NULL)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	203 Py_FatalError("PyThreadState_Delete: NULL interp");
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	204 HEAD_LOCK();
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	205 for (p = &interp->tstate_head; ; p = &(*p)->next) {
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	206 if (*p == NULL)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	207 Py_FatalError(
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	208 "PyThreadState_Delete: invalid tstate");
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	209 if (*p == tstate)
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	210 break;
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 *p = tstate->next;
11011 3b3c7b8ade7f CRITICAL PATCH! Guido van Rossum <guido@python.org> parents: 9667 diff changeset	213 HEAD_UNLOCK();
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	214 PyMem_DEL(tstate);
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	215 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	216
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	217
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	218 PyThreadState *
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	219 PyThreadState_Get()
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	220 {
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	221 if (_PyThreadState_Current == NULL)
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	222 Py_FatalError("PyThreadState_Get: no current thread");
8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	223
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	224 return _PyThreadState_Current;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	225 }
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	226
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	227
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	228 PyThreadState *
5567 932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	229 PyThreadState_Swap(new)
932cfc5fc104 Don't use function prototypes in function definition headers. Guido van Rossum <guido@python.org> parents: 5405 diff changeset	230 PyThreadState *new;
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	231 {
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	232 PyThreadState *old = _PyThreadState_Current;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	233
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	234 _PyThreadState_Current = new;
5926 8d2194e22e67 The last of the mass checkins for separate (sub)interpreters. Guido van Rossum <guido@python.org> parents: 5849 diff changeset	235
5405 b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	236 return old;
b7871ca930ad Massive changes for separate thread state management. Guido van Rossum <guido@python.org> parents: diff changeset	237 }
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	238
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	239 /* 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	240 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	241 state; the caller should pick a unique key and store its state there. If
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	242 PyThreadState_GetDict() returns NULL, an exception has been raised (most
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	243 likely MemoryError) and the caller should pass on the exception. */
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	244
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	245 PyObject *
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	246 PyThreadState_GetDict()
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	247 {
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	248 if (_PyThreadState_Current == NULL)
7970 4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	249 Py_FatalError("PyThreadState_GetDict: no current thread");
4ceee1ef99b0 /* An extension mechanism to store arbitrary additional per-thread state. Guido van Rossum <guido@python.org> parents: 6549 diff changeset	250
9667 914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	251 if (_PyThreadState_Current->dict == NULL)
914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	252 _PyThreadState_Current->dict = PyDict_New();
914f83e7fa0a Make current_tstate a global, _PyThreadState_Current. This is to Guido van Rossum <guido@python.org> parents: 7970 diff changeset	253 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	254 }

Mercurial > cpython-lru_cache-weakref

annotate Python/pystate.c @ 11177:5f5fc1031957 legacy-trunk