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-rw-r--r--src/egl/main/eglcurrent.c89
1 files changed, 73 insertions, 16 deletions
diff --git a/src/egl/main/eglcurrent.c b/src/egl/main/eglcurrent.c
index 96152db19f..e1b3548517 100644
--- a/src/egl/main/eglcurrent.c
+++ b/src/egl/main/eglcurrent.c
@@ -3,6 +3,7 @@
#include "eglcurrent.h"
#include "eglcontext.h"
#include "egllog.h"
+#include "eglmutex.h"
/* a fallback thread info to guarantee that every thread always has one */
@@ -13,51 +14,108 @@ static _EGLThreadInfo dummy_thread;
static __thread const _EGLThreadInfo *_egl_TSD;
__attribute__ ((tls_model("initial-exec")));
-static INLINE EGLBoolean _eglInitTSD(void) { return EGL_TRUE; }
-static INLINE void _eglFiniTSD(void) { }
-static INLINE void _eglSetTSD(const _EGLThreadInfo *t) { _egl_TSD = t; }
+static INLINE void _eglSetTSD(const _EGLThreadInfo *t)
+{
+ _egl_TSD = t;
+}
static INLINE _EGLThreadInfo *_eglGetTSD(void)
{
return (_EGLThreadInfo *) _egl_TSD;
}
+static INLINE void _eglFiniTSD(void)
+{
+}
+
+static INLINE EGLBoolean _eglInitTSD(void (*dtor)(_EGLThreadInfo *))
+{
+ /* TODO destroy TSD */
+ (void) dtor;
+ return EGL_TRUE;
+}
+
#elif PTHREADS
#include <pthread.h>
+static _EGL_DECLARE_MUTEX(_egl_TSDMutex);
+static EGLBoolean _egl_TSDInitialized;
static pthread_key_t _egl_TSD;
+static void (*_egl_FreeTSD)(_EGLThreadInfo *);
-static INLINE EGLBoolean _eglInitTSD(void)
+static INLINE void _eglSetTSD(const _EGLThreadInfo *t)
{
- return (pthread_key_create(&_egl_TSD, NULL) == 0);
+ pthread_setspecific(_egl_TSD, (const void *) t);
}
-static INLINE void _eglFiniTSD(void)
+static INLINE _EGLThreadInfo *_eglGetTSD(void)
{
- pthread_key_delete(_egl_TSD);
+ return (_EGLThreadInfo *) pthread_getspecific(_egl_TSD);
}
-static INLINE void _eglSetTSD(const _EGLThreadInfo *t)
+static INLINE void _eglFiniTSD(void)
{
- pthread_setspecific(_egl_TSD, (const void *) t);
+ _eglLockMutex(&_egl_TSDMutex);
+ if (_egl_TSDInitialized) {
+ _EGLThreadInfo *t = _eglGetTSD();
+
+ _egl_TSDInitialized = EGL_FALSE;
+ if (t && _egl_FreeTSD)
+ _egl_FreeTSD((void *) t);
+ pthread_key_delete(_egl_TSD);
+ }
+ _eglUnlockMutex(&_egl_TSDMutex);
}
-static INLINE _EGLThreadInfo *_eglGetTSD(void)
+static INLINE EGLBoolean _eglInitTSD(void (*dtor)(_EGLThreadInfo *))
{
- return (_EGLThreadInfo *) pthread_getspecific(_egl_TSD);
+ if (!_egl_TSDInitialized) {
+ _eglLockMutex(&_egl_TSDMutex);
+
+ /* check again after acquiring lock */
+ if (!_egl_TSDInitialized) {
+ if (pthread_key_create(&_egl_TSD, (void (*)(void *)) dtor) != 0) {
+ _eglUnlockMutex(&_egl_TSDMutex);
+ return EGL_FALSE;
+ }
+ _egl_FreeTSD = dtor;
+ _egl_TSDInitialized = EGL_TRUE;
+ }
+
+ _eglUnlockMutex(&_egl_TSDMutex);
+ }
+
+ return EGL_TRUE;
}
#else /* PTHREADS */
static const _EGLThreadInfo *_egl_TSD;
+static void (*_egl_FreeTSD)(_EGLThreadInfo *);
-static INLINE EGLBoolean _eglInitTSD(void) { return EGL_TRUE; }
-static INLINE void _eglFiniTSD(void) { }
-static INLINE void _eglSetTSD(const _EGLThreadInfo *t) { _egl_TSD = t; }
+static INLINE void _eglSetTSD(const _EGLThreadInfo *t)
+{
+ _egl_TSD = t;
+}
static INLINE _EGLThreadInfo *_eglGetTSD(void)
{
return (_EGLThreadInfo *) _egl_TSD;
}
+
+static INLINE void _eglFiniTSD(void)
+{
+ if (_egl_FreeTSD && _egl_TSD)
+ _egl_FreeTSD((_EGLThreadInfo *) _egl_TSD);
+}
+
+static INLINE EGLBoolean _eglInitTSD(void (*dtor)(_EGLThreadInfo *))
+{
+ if (!_egl_FreeTSD && dtor) {
+ _egl_FreeTSD = dtor;
+ }
+ return EGL_TRUE;
+}
+
#endif /* !PTHREADS */
@@ -104,7 +162,7 @@ EGLBoolean
_eglInitCurrent(void)
{
_eglInitThreadInfo(&dummy_thread);
- return _eglInitTSD();
+ return _eglInitTSD((void (*)(void *)) _eglDestroyThreadInfo);
}
@@ -114,7 +172,6 @@ _eglInitCurrent(void)
void
_eglFiniCurrent(void)
{
- /* TODO trace and release all threads... */
_eglFiniTSD();
}