diff options
| author | Chia-I Wu <olvaffe@gmail.com> | 2009-07-10 17:35:11 +0800 |
|---|---|---|
| committer | Brian Paul <brianp@vmware.com> | 2009-08-24 11:45:57 -0600 |
| commit | fc2feea685d86c520fb01199caa5a46eae20c7aa (patch) | |
| tree | dd8619d17770db2a92121216394f474a8cea0e43 /src/mesa | |
| parent | 99939982ec76cb1fee84da9027375c55888dca20 (diff) | |
glapi: Fix a race in accessing context/dispatch TSD.
If multiple threads set/get a TSD at roughly same time for the first
time, glthread might (wrongly) initialize it more than once. This patch
solves the race by initializing context/dispatch TSDs early.
Acked-by: Ian Romanick <ian.d.romanick@intel.com>
Signed-off-by: Chia-I Wu <olvaffe@gmail.com>
Diffstat (limited to 'src/mesa')
| -rw-r--r-- | src/mesa/glapi/glapi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/mesa/glapi/glapi.c b/src/mesa/glapi/glapi.c index 30aec209e7..b9ab9c07be 100644 --- a/src/mesa/glapi/glapi.c +++ b/src/mesa/glapi/glapi.c @@ -240,6 +240,10 @@ _glapi_check_multithread(void) _glthread_LOCK_MUTEX(ThreadCheckMutex); if (firstCall) { + /* initialize TSDs */ + (void) _glthread_GetTSD(&ContextTSD); + (void) _glthread_GetTSD(&_gl_DispatchTSD); + knownID = _glthread_GetID(); firstCall = GL_FALSE; } |