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75 lines
2.0 KiB
C
75 lines
2.0 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2022 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#include "../../core/windows/SDL_windows.h"
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#include "SDL_mutex.h"
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typedef SDL_mutex * (*pfnSDL_CreateMutex)(void);
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typedef int (*pfnSDL_LockMutex)(SDL_mutex *);
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typedef int (*pfnSDL_TryLockMutex)(SDL_mutex *);
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typedef int (*pfnSDL_UnlockMutex)(SDL_mutex *);
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typedef void (*pfnSDL_DestroyMutex)(SDL_mutex *);
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typedef enum
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{
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SDL_MUTEX_INVALID = 0,
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SDL_MUTEX_SRW,
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SDL_MUTEX_CS,
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} SDL_MutexType;
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typedef struct SDL_mutex_impl_t
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{
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pfnSDL_CreateMutex Create;
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pfnSDL_DestroyMutex Destroy;
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pfnSDL_LockMutex Lock;
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pfnSDL_TryLockMutex TryLock;
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pfnSDL_UnlockMutex Unlock;
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/* Needed by SDL_cond: */
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SDL_MutexType Type;
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} SDL_mutex_impl_t;
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extern SDL_mutex_impl_t SDL_mutex_impl_active;
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#ifndef SRWLOCK_INIT
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#define SRWLOCK_INIT {0}
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typedef struct _SRWLOCK {
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PVOID Ptr;
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} SRWLOCK, *PSRWLOCK;
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#endif
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typedef struct SDL_mutex_srw
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{
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SRWLOCK srw;
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/* SRW Locks are not recursive, that has to be handled by SDL: */
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DWORD count;
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DWORD owner;
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} SDL_mutex_srw;
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typedef struct SDL_mutex_cs
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{
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CRITICAL_SECTION cs;
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} SDL_mutex_cs;
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/* vi: set ts=4 sw=4 expandtab: */
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