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egl: Add eglmutex.h. 

The implementation uses pthread mutex when available.  Otherwise, it is
no-op.

Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
This commit is contained in:
Chia-I Wu 2009-08-10 11:35:06 +08:00 committed by Brian Paul
parent 50f8ca2344
commit e79d21ca1f
2 changed files with 53 additions and 0 deletions
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1
src/egl/main/Makefile
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@ -20,6 +20,7 @@ HEADERS = \
eglhash.h \
eglmisc.h \
eglmode.h \
eglmutex.h \
eglscreen.h \
eglstring.h \
eglsurface.h \

52
src/egl/main/eglmutex.h Normal file
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@ -0,0 +1,52 @@
#ifndef EGLMUTEX_INCLUDED
#define EGLMUTEX_INCLUDED
#include "eglcompiler.h"
#ifdef PTHREADS
#include <pthread.h>
typedef pthread_mutex_t _EGLMutex;
static INLINE void _eglInitMutex(_EGLMutex *m)
{
pthread_mutex_init(m, NULL);
}
static INLINE void
_eglDestroyMutex(_EGLMutex *m)
{
pthread_mutex_destroy(m);
}
static INLINE void
_eglLockMutex(_EGLMutex *m)
{
pthread_mutex_lock(m);
}
static INLINE void
_eglUnlockMutex(_EGLMutex *m)
{
pthread_mutex_unlock(m);
}
#define _EGL_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
#define _EGL_DECLARE_MUTEX(m) \
_EGLMutex m = _EGL_MUTEX_INITIALIZER
#else
typedef int _EGLMutex;
static INLINE void _eglInitMutex(_EGLMutex *m) { (void) m; }
static INLINE void _eglDestroyMutex(_EGLMutex *m) { (void) m; }
static INLINE void _eglLockMutex(_EGLMutex *m) { (void) m; }
static INLINE void _eglUnlockMutex(_EGLMutex *m) { (void) m; }
#define _EGL_MUTEX_INITIALIZER 0
#define _EGL_DECLARE_MUTEX(m) \
_EGLMutex m = _EGL_MUTEX_INITIALIZER
#endif
#endif /* EGLMUTEX_INCLUDED */