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author	Richard Moore <rich@kde.org>	2012-11-19 20:48:39 (GMT)
committer	The Qt Project <gerrit-noreply@qt-project.org>	2012-11-22 21:38:35 (GMT)
commit	96311def2466dd44de64d77a1c815b22fbf68f71 (patch)
tree	1aa4e9c48cf6d6833bd76108c924712ff9220dab /examples/declarative/cppextensions/plugins
parent	ed40beeff54d665e604d0fa861c5865554832964 (diff)
download	Qt-4.8.4.zip Qt-4.8.4.tar.gz Qt-4.8.4.tar.bz2

Make the rules for redirects a bit stricter.v4.8.4

Change-Id: I7a3cec664aa028202de3d3bda9f499e4deb2998d Reviewed-by: Lars Knoll <lars.knoll@digia.com>

Diffstat (limited to 'examples/declarative/cppextensions/plugins')

0 files changed, 0 insertions, 0 deletions

/*********************************************************** Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, The Netherlands. All Rights Reserved Permission to use, copy, modify, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that the names of Stichting Mathematisch Centrum or CWI or Corporation for National Research Initiatives or CNRI not be used in advertising or publicity pertaining to distribution of the software without specific, written prior permission. While CWI is the initial source for this software, a modified version is made available by the Corporation for National Research Initiatives (CNRI) at the Internet address ftp://ftp.python.org. STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. ******************************************************************/ /* Thread and interpreter state structures and their interfaces */ #include "Python.h" #define ZAP(x) { \ PyObject *tmp = (PyObject *)(x); \ (x) = NULL; \ Py_XDECREF(tmp); \ } #ifdef WITH_THREAD #include "pythread.h" static PyThread_type_lock head_mutex = NULL; /* Protects interp->tstate_head */ #define HEAD_INIT() (head_mutex || (head_mutex = PyThread_allocate_lock())) #define HEAD_LOCK() PyThread_acquire_lock(head_mutex, WAIT_LOCK) #define HEAD_UNLOCK() PyThread_release_lock(head_mutex) #else #define HEAD_INIT() /* Nothing */ #define HEAD_LOCK() /* Nothing */ #define HEAD_UNLOCK() /* Nothing */ #endif static PyInterpreterState *interp_head = NULL; PyThreadState *_PyThreadState_Current = NULL; PyInterpreterState * PyInterpreterState_New() { PyInterpreterState *interp = PyMem_NEW(PyInterpreterState, 1); if (interp != NULL) { HEAD_INIT(); interp->modules = NULL; interp->sysdict = NULL; interp->builtins = NULL; interp->checkinterval = 10; interp->tstate_head = NULL; interp->next = interp_head; interp_head = interp; } return interp; } void PyInterpreterState_Clear(interp) PyInterpreterState *interp; { PyThreadState *p; HEAD_LOCK(); for (p = interp->tstate_head; p != NULL; p = p->next) PyThreadState_Clear(p); HEAD_UNLOCK(); ZAP(interp->modules); ZAP(interp->sysdict); ZAP(interp->builtins); } static void zapthreads(interp) PyInterpreterState *interp; { PyThreadState *p; /* No need to lock the mutex here because this should only happen when the threads are all really dead (XXX famous last words). */ while ((p = interp->tstate_head) != NULL) { PyThreadState_Delete(p); } } void PyInterpreterState_Delete(interp) PyInterpreterState *interp; { PyInterpreterState **p; zapthreads(interp); for (p = &interp_head; ; p = &(*p)->next) { if (*p == NULL) Py_FatalError( "PyInterpreterState_Delete: invalid interp"); if (*p == interp) break; } if (interp->tstate_head != NULL) Py_FatalError("PyInterpreterState_Delete: remaining threads"); *p = interp->next; PyMem_DEL(interp); } PyThreadState * PyThreadState_New(interp) PyInterpreterState *interp; { PyThreadState *tstate = PyMem_NEW(PyThreadState, 1); if (tstate != NULL) { tstate->interp = interp; tstate->frame = NULL; tstate->recursion_depth = 0; tstate->ticker = 0; tstate->tracing = 0; tstate->dict = NULL; tstate->curexc_type = NULL; tstate->curexc_value = NULL; tstate->curexc_traceback = NULL; tstate->exc_type = NULL; tstate->exc_value = NULL; tstate->exc_traceback = NULL; tstate->sys_profilefunc = NULL; tstate->sys_tracefunc = NULL; HEAD_LOCK(); tstate->next = interp->tstate_head; interp->tstate_head = tstate; HEAD_UNLOCK(); } return tstate; } void PyThreadState_Clear(tstate) PyThreadState *tstate; { if (Py_VerboseFlag && tstate->frame != NULL) fprintf(stderr, "PyThreadState_Clear: warning: thread still has a frame\n"); ZAP(tstate->frame); ZAP(tstate->dict); ZAP(tstate->curexc_type); ZAP(tstate->curexc_value); ZAP(tstate->curexc_traceback); ZAP(tstate->exc_type); ZAP(tstate->exc_value); ZAP(tstate->exc_traceback); ZAP(tstate->sys_profilefunc); ZAP(tstate->sys_tracefunc); } void PyThreadState_Delete(tstate) PyThreadState *tstate; { PyInterpreterState *interp; PyThreadState **p; if (tstate == NULL) Py_FatalError("PyThreadState_Delete: NULL tstate"); if (tstate == _PyThreadState_Current) Py_FatalError("PyThreadState_Delete: tstate is still current"); interp = tstate->interp; if (interp == NULL) Py_FatalError("PyThreadState_Delete: NULL interp"); HEAD_LOCK(); for (p = &interp->tstate_head; ; p = &(*p)->next) { if (*p == NULL) Py_FatalError( "PyThreadState_Delete: invalid tstate"); if (*p == tstate) break; } *p = tstate->next; HEAD_UNLOCK(); PyMem_DEL(tstate); } PyThreadState * PyThreadState_Get() { if (_PyThreadState_Current == NULL) Py_FatalError("PyThreadState_Get: no current thread"); return _PyThreadState_Current; } PyThreadState * PyThreadState_Swap(new) PyThreadState *new; { PyThreadState *old = _PyThreadState_Current; _PyThreadState_Current = new; return old; } /* An extension mechanism to store arbitrary additional per-thread state. PyThreadState_GetDict() returns a dictionary that can be used to hold such state; the caller should pick a unique key and store its state there. If PyThreadState_GetDict() returns NULL, an exception has been raised (most likely MemoryError) and the caller should pass on the exception. */ PyObject * PyThreadState_GetDict() { if (_PyThreadState_Current == NULL) Py_FatalError("PyThreadState_GetDict: no current thread"); if (_PyThreadState_Current->dict == NULL) _PyThreadState_Current->dict = PyDict_New(); return _PyThreadState_Current->dict; }


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