/**
* We should call this periodically from a function such as glXMakeCurrent
* in order to test if multiple threads are being used.
*/
void
_glapi_check_multithread(void)
{
#if defined(THREADS) && !defined(GLX_USE_TLS)
static unsigned long knownID;
static GLboolean firstCall = GL_TRUE;
if (ThreadSafe)
return;
CHECK_MULTITHREAD_LOCK();
if (firstCall) {
/* initialize TSDs */
(void) _glthread_GetTSD(&ContextTSD);
(void) _glthread_GetTSD(&_gl_DispatchTSD);
knownID = _glthread_GetID();
firstCall = GL_FALSE;
}
else if (knownID != _glthread_GetID()) {
ThreadSafe = GL_TRUE;
_glapi_set_dispatch(NULL);
_glapi_set_context(NULL);
}
CHECK_MULTITHREAD_UNLOCK();
#endif
}
GLXContext PUBLIC
glXGetCurrentContext(void)
{
#if defined(GLX_USE_TLS)
return CurrentContext;
#elif defined(THREADS)
return (GLXContext) _glthread_GetTSD(&ContextTSD);
#else
return CurrentContext;
#endif
}
/**
* Return pointer to current dispatch table for calling thread.
*/
PUBLIC struct _glapi_table *
_glapi_get_dispatch(void)
{
struct _glapi_table * api;
#if defined(GLX_USE_TLS)
api = _glapi_tls_Dispatch;
#elif defined(THREADS)
api = (ThreadSafe)
? (struct _glapi_table *) _glthread_GetTSD(&_gl_DispatchTSD)
: _glapi_Dispatch;
#else
api = _glapi_Dispatch;
#endif
return api;
}
/**
* Get the current context pointer for this thread.
* The context pointer is an opaque type which should be cast from
* void to the real context pointer type.
*/
PUBLIC void *
_glapi_get_context(void)
{
#if defined(GLX_USE_TLS)
return _glapi_tls_Context;
#elif defined(THREADS)
if (ThreadSafe) {
return _glthread_GetTSD(&ContextTSD);
}
else {
return _glapi_Context;
}
#else
return _glapi_Context;
#endif
}