0,0 → 1,194 |
/* cairo - a vector graphics library with display and print output |
* |
* Copyright © 2002 University of Southern California |
* Copyright © 2005,2007 Red Hat, Inc. |
* Copyright © 2007 Mathias Hasselmann |
* |
* This library is free software; you can redistribute it and/or |
* modify it either under the terms of the GNU Lesser General Public |
* License version 2.1 as published by the Free Software Foundation |
* (the "LGPL") or, at your option, under the terms of the Mozilla |
* Public License Version 1.1 (the "MPL"). If you do not alter this |
* notice, a recipient may use your version of this file under either |
* the MPL or the LGPL. |
* |
* You should have received a copy of the LGPL along with this library |
* in the file COPYING-LGPL-2.1; if not, write to the Free Software |
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
* You should have received a copy of the MPL along with this library |
* in the file COPYING-MPL-1.1 |
* |
* The contents of this file are subject to the Mozilla Public License |
* Version 1.1 (the "License"); you may not use this file except in |
* compliance with the License. You may obtain a copy of the License at |
* http://www.mozilla.org/MPL/ |
* |
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
* OF ANY KIND, either express or implied. See the LGPL or the MPL for |
* the specific language governing rights and limitations. |
* |
* The Original Code is the cairo graphics library. |
* |
* The Initial Developer of the Original Code is University of Southern |
* California. |
* |
* Contributor(s): |
* Carl D. Worth <cworth@cworth.org> |
* Mathias Hasselmann <mathias.hasselmann@gmx.de> |
* Behdad Esfahbod <behdad@behdad.org> |
*/ |
|
#ifndef CAIRO_MUTEX_TYPE_PRIVATE_H |
#define CAIRO_MUTEX_TYPE_PRIVATE_H |
|
#include "cairo-compiler-private.h" |
#include "cairo-mutex-impl-private.h" |
|
/* Only the following four are mandatory at this point */ |
#ifndef CAIRO_MUTEX_IMPL_LOCK |
# error "CAIRO_MUTEX_IMPL_LOCK not defined. Check cairo-mutex-impl-private.h." |
#endif |
#ifndef CAIRO_MUTEX_IMPL_UNLOCK |
# error "CAIRO_MUTEX_IMPL_UNLOCK not defined. Check cairo-mutex-impl-private.h." |
#endif |
#ifndef CAIRO_MUTEX_IMPL_NIL_INITIALIZER |
# error "CAIRO_MUTEX_IMPL_NIL_INITIALIZER not defined. Check cairo-mutex-impl-private.h." |
#endif |
#ifndef CAIRO_RECURSIVE_MUTEX_IMPL_INIT |
# error "CAIRO_RECURSIVE_MUTEX_IMPL_INIT not defined. Check cairo-mutex-impl-private.h." |
#endif |
|
|
/* make sure implementations don't fool us: we decide these ourself */ |
#undef _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER |
#undef _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER |
|
|
#ifdef CAIRO_MUTEX_IMPL_INIT |
|
/* If %CAIRO_MUTEX_IMPL_INIT is defined, we may need to initialize all |
* static mutex'es. */ |
# ifndef CAIRO_MUTEX_IMPL_INITIALIZE |
# define CAIRO_MUTEX_IMPL_INITIALIZE() do { \ |
if (!_cairo_mutex_initialized) \ |
_cairo_mutex_initialize (); \ |
} while(0) |
|
/* and make sure we implement the above */ |
# define _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER 1 |
# endif /* CAIRO_MUTEX_IMPL_INITIALIZE */ |
|
#else /* no CAIRO_MUTEX_IMPL_INIT */ |
|
/* Otherwise we probably don't need to initialize static mutex'es, */ |
# ifndef CAIRO_MUTEX_IMPL_INITIALIZE |
# define CAIRO_MUTEX_IMPL_INITIALIZE() CAIRO_MUTEX_IMPL_NOOP |
# endif /* CAIRO_MUTEX_IMPL_INITIALIZE */ |
|
/* and dynamic ones can be initialized using the static initializer. */ |
# define CAIRO_MUTEX_IMPL_INIT(mutex) do { \ |
cairo_mutex_t _tmp_mutex = CAIRO_MUTEX_IMPL_NIL_INITIALIZER; \ |
memcpy (&(mutex), &_tmp_mutex, sizeof (_tmp_mutex)); \ |
} while (0) |
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#endif /* CAIRO_MUTEX_IMPL_INIT */ |
|
#ifdef CAIRO_MUTEX_IMPL_FINI |
|
/* If %CAIRO_MUTEX_IMPL_FINI is defined, we may need to finalize all |
* static mutex'es. */ |
# ifndef CAIRO_MUTEX_IMPL_FINALIZE |
# define CAIRO_MUTEX_IMPL_FINALIZE() do { \ |
if (_cairo_mutex_initialized) \ |
_cairo_mutex_finalize (); \ |
} while(0) |
|
/* and make sure we implement the above */ |
# define _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER 1 |
# endif /* CAIRO_MUTEX_IMPL_FINALIZE */ |
|
#else /* no CAIRO_MUTEX_IMPL_FINI */ |
|
/* Otherwise we probably don't need to finalize static mutex'es, */ |
# ifndef CAIRO_MUTEX_IMPL_FINALIZE |
# define CAIRO_MUTEX_IMPL_FINALIZE() CAIRO_MUTEX_IMPL_NOOP |
# endif /* CAIRO_MUTEX_IMPL_FINALIZE */ |
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/* neither do the dynamic ones. */ |
# define CAIRO_MUTEX_IMPL_FINI(mutex) CAIRO_MUTEX_IMPL_NOOP1(mutex) |
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#endif /* CAIRO_MUTEX_IMPL_FINI */ |
|
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#ifndef _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER |
#define _CAIRO_MUTEX_IMPL_USE_STATIC_INITIALIZER 0 |
#endif |
#ifndef _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER |
#define _CAIRO_MUTEX_IMPL_USE_STATIC_FINALIZER 0 |
#endif |
|
|
/* Make sure everything we want is defined */ |
#ifndef CAIRO_MUTEX_IMPL_INITIALIZE |
# error "CAIRO_MUTEX_IMPL_INITIALIZE not defined" |
#endif |
#ifndef CAIRO_MUTEX_IMPL_FINALIZE |
# error "CAIRO_MUTEX_IMPL_FINALIZE not defined" |
#endif |
#ifndef CAIRO_MUTEX_IMPL_LOCK |
# error "CAIRO_MUTEX_IMPL_LOCK not defined" |
#endif |
#ifndef CAIRO_MUTEX_IMPL_UNLOCK |
# error "CAIRO_MUTEX_IMPL_UNLOCK not defined" |
#endif |
#ifndef CAIRO_MUTEX_IMPL_INIT |
# error "CAIRO_MUTEX_IMPL_INIT not defined" |
#endif |
#ifndef CAIRO_MUTEX_IMPL_FINI |
# error "CAIRO_MUTEX_IMPL_FINI not defined" |
#endif |
#ifndef CAIRO_MUTEX_IMPL_NIL_INITIALIZER |
# error "CAIRO_MUTEX_IMPL_NIL_INITIALIZER not defined" |
#endif |
|
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/* Public interface. */ |
|
/* By default it simply uses the implementation provided. |
* But we can provide for debugging features by overriding them */ |
|
#ifndef CAIRO_MUTEX_DEBUG |
typedef cairo_mutex_impl_t cairo_mutex_t; |
typedef cairo_recursive_mutex_impl_t cairo_recursive_mutex_t; |
#else |
# define cairo_mutex_t cairo_mutex_impl_t |
#endif |
|
#define CAIRO_MUTEX_INITIALIZE CAIRO_MUTEX_IMPL_INITIALIZE |
#define CAIRO_MUTEX_FINALIZE CAIRO_MUTEX_IMPL_FINALIZE |
#define CAIRO_MUTEX_LOCK CAIRO_MUTEX_IMPL_LOCK |
#define CAIRO_MUTEX_UNLOCK CAIRO_MUTEX_IMPL_UNLOCK |
#define CAIRO_MUTEX_INIT CAIRO_MUTEX_IMPL_INIT |
#define CAIRO_MUTEX_FINI CAIRO_MUTEX_IMPL_FINI |
#define CAIRO_MUTEX_NIL_INITIALIZER CAIRO_MUTEX_IMPL_NIL_INITIALIZER |
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#define CAIRO_RECURSIVE_MUTEX_INIT CAIRO_RECURSIVE_MUTEX_IMPL_INIT |
#define CAIRO_RECURSIVE_MUTEX_NIL_INITIALIZER CAIRO_RECURSIVE_MUTEX_IMPL_NIL_INITIALIZER |
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#ifndef CAIRO_MUTEX_IS_LOCKED |
# define CAIRO_MUTEX_IS_LOCKED(name) 1 |
#endif |
#ifndef CAIRO_MUTEX_IS_UNLOCKED |
# define CAIRO_MUTEX_IS_UNLOCKED(name) 1 |
#endif |
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/* Debugging support */ |
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#ifdef CAIRO_MUTEX_DEBUG |
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/* TODO add mutex debugging facilities here (eg deadlock detection) */ |
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#endif /* CAIRO_MUTEX_DEBUG */ |
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#endif |