diff options
| author | SND\weimingzhi_cp <SND\weimingzhi_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97> | 2011-02-19 02:25:15 +0000 |
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| committer | SND\weimingzhi_cp <SND\weimingzhi_cp@e17a0e51-4ae3-4d35-97c3-1a29b211df97> | 2011-02-19 02:25:15 +0000 |
| commit | 3fc56dbe4ad7e9deaeaef8c209a68e1de986f6fa (patch) | |
| tree | c27c3a79fb402b0b3e47f23b434baddc4ce8a5c6 /macosx/plugins/Common/SDL/include/SDL_mutex.h | |
| parent | bc54761a4332b875e1962a21f2858db598fa7c18 (diff) | |
| download | pcsxr-3fc56dbe4ad7e9deaeaef8c209a68e1de986f6fa.tar.gz | |
-Reverted some changes to make the code build again on Tiger.
-Removed x86_64 from Deployment configuration.
-macosx: Use SDL for sound plugin, removed Carbon backend.
-(MaddTheSane)Fixed memory leaks (Patch #8427).
git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@63548 e17a0e51-4ae3-4d35-97c3-1a29b211df97
Diffstat (limited to 'macosx/plugins/Common/SDL/include/SDL_mutex.h')
| -rw-r--r-- | macosx/plugins/Common/SDL/include/SDL_mutex.h | 223 |
1 files changed, 223 insertions, 0 deletions
diff --git a/macosx/plugins/Common/SDL/include/SDL_mutex.h b/macosx/plugins/Common/SDL/include/SDL_mutex.h new file mode 100644 index 00000000..e066f944 --- /dev/null +++ b/macosx/plugins/Common/SDL/include/SDL_mutex.h @@ -0,0 +1,223 @@ +/* + SDL - Simple DirectMedia Layer + Copyright (C) 1997-2010 Sam Lantinga + + This library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + This library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with this library; if not, write to the Free Software + Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + + Sam Lantinga + slouken@libsdl.org +*/ + +#ifndef _SDL_mutex_h +#define _SDL_mutex_h + +/** + * \file SDL_mutex.h + * + * Functions to provide thread synchronization primitives. + */ + +#include "SDL_stdinc.h" +#include "SDL_error.h" + +#include "begin_code.h" +/* Set up for C function definitions, even when using C++ */ +#ifdef __cplusplus +/* *INDENT-OFF* */ +extern "C" { +/* *INDENT-ON* */ +#endif + +/** + * Synchronization functions which can time out return this value + * if they time out. + */ +#define SDL_MUTEX_TIMEDOUT 1 + +/** + * This is the timeout value which corresponds to never time out. + */ +#define SDL_MUTEX_MAXWAIT (~(Uint32)0) + + +/** + * \name Mutex functions + */ +/*@{*/ + +/* The SDL mutex structure, defined in SDL_mutex.c */ +struct SDL_mutex; +typedef struct SDL_mutex SDL_mutex; + +/** + * Create a mutex, initialized unlocked. + */ +extern DECLSPEC SDL_mutex *SDLCALL SDL_CreateMutex(void); + +/** + * Lock the mutex. + * + * \return 0, or -1 on error. + */ +#define SDL_LockMutex(m) SDL_mutexP(m) +extern DECLSPEC int SDLCALL SDL_mutexP(SDL_mutex * mutex); + +/** + * Unlock the mutex. + * + * \return 0, or -1 on error. + * + * \warning It is an error to unlock a mutex that has not been locked by + * the current thread, and doing so results in undefined behavior. + */ +#define SDL_UnlockMutex(m) SDL_mutexV(m) +extern DECLSPEC int SDLCALL SDL_mutexV(SDL_mutex * mutex); + +/** + * Destroy a mutex. + */ +extern DECLSPEC void SDLCALL SDL_DestroyMutex(SDL_mutex * mutex); + +/*@}*//*Mutex functions*/ + + +/** + * \name Semaphore functions + */ +/*@{*/ + +/* The SDL semaphore structure, defined in SDL_sem.c */ +struct SDL_semaphore; +typedef struct SDL_semaphore SDL_sem; + +/** + * Create a semaphore, initialized with value, returns NULL on failure. + */ +extern DECLSPEC SDL_sem *SDLCALL SDL_CreateSemaphore(Uint32 initial_value); + +/** + * Destroy a semaphore. + */ +extern DECLSPEC void SDLCALL SDL_DestroySemaphore(SDL_sem * sem); + +/** + * This function suspends the calling thread until the semaphore pointed + * to by \c sem has a positive count. It then atomically decreases the + * semaphore count. + */ +extern DECLSPEC int SDLCALL SDL_SemWait(SDL_sem * sem); + +/** + * Non-blocking variant of SDL_SemWait(). + * + * \return 0 if the wait succeeds, ::SDL_MUTEX_TIMEDOUT if the wait would + * block, and -1 on error. + */ +extern DECLSPEC int SDLCALL SDL_SemTryWait(SDL_sem * sem); + +/** + * Variant of SDL_SemWait() with a timeout in milliseconds. + * + * \return 0 if the wait succeeds, ::SDL_MUTEX_TIMEDOUT if the wait does not + * succeed in the allotted time, and -1 on error. + * + * \warning On some platforms this function is implemented by looping with a + * delay of 1 ms, and so should be avoided if possible. + */ +extern DECLSPEC int SDLCALL SDL_SemWaitTimeout(SDL_sem * sem, Uint32 ms); + +/** + * Atomically increases the semaphore's count (not blocking). + * + * \return 0, or -1 on error. + */ +extern DECLSPEC int SDLCALL SDL_SemPost(SDL_sem * sem); + +/** + * Returns the current count of the semaphore. + */ +extern DECLSPEC Uint32 SDLCALL SDL_SemValue(SDL_sem * sem); + +/*@}*//*Semaphore functions*/ + + +/** + * \name Condition variable functions + */ +/*@{*/ + +/* The SDL condition variable structure, defined in SDL_cond.c */ +struct SDL_cond; +typedef struct SDL_cond SDL_cond; + +/** + * Create a condition variable. + */ +extern DECLSPEC SDL_cond *SDLCALL SDL_CreateCond(void); + +/** + * Destroy a condition variable. + */ +extern DECLSPEC void SDLCALL SDL_DestroyCond(SDL_cond * cond); + +/** + * Restart one of the threads that are waiting on the condition variable. + * + * \return 0 or -1 on error. + */ +extern DECLSPEC int SDLCALL SDL_CondSignal(SDL_cond * cond); + +/** + * Restart all threads that are waiting on the condition variable. + * \return 0 or -1 on error. + */ +extern DECLSPEC int SDLCALL SDL_CondBroadcast(SDL_cond * cond); + +/** + * Wait on the condition variable, unlocking the provided mutex. + * + * \warning The mutex must be locked before entering this function! + * + * The mutex is re-locked once the condition variable is signaled. + * + * \return 0 when it is signaled, or -1 on error. + */ +extern DECLSPEC int SDLCALL SDL_CondWait(SDL_cond * cond, SDL_mutex * mutex); + +/** + * Waits for at most \c ms milliseconds, and returns 0 if the condition + * variable is signaled, ::SDL_MUTEX_TIMEDOUT if the condition is not + * signaled in the allotted time, and -1 on error. + * + * \warning On some platforms this function is implemented by looping with a + * delay of 1 ms, and so should be avoided if possible. + */ +extern DECLSPEC int SDLCALL SDL_CondWaitTimeout(SDL_cond * cond, + SDL_mutex * mutex, Uint32 ms); + +/*@}*//*Condition variable functions*/ + + +/* Ends C function definitions when using C++ */ +#ifdef __cplusplus +/* *INDENT-OFF* */ +} +/* *INDENT-ON* */ +#endif +#include "close_code.h" + +#endif /* _SDL_mutex_h */ + +/* vi: set ts=4 sw=4 expandtab: */ |
