From bc16c73407d11bb6702cf7de9925bfaeb80a5272 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sun, 15 May 2011 16:41:54 +1000 Subject: [PATCH] gallium: block signals for new thread when spawning threads I'm hard pressed to think of any reason a gallium thread would want to receive a signal, especially considering its probably loaded as a library and you don't want the threads interfering with the main threads signal handling. This solves a problem loading llvmpipe into the X server for AIGLX, where the X server relies on the SIGIO signal going to the main thread, but once llvmpipe loads the SIGIO can end up in any of its threads. Signed-off-by: Dave Airlie --- src/gallium/auxiliary/os/os_thread.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/src/gallium/auxiliary/os/os_thread.h b/src/gallium/auxiliary/os/os_thread.h index 8173d4cc37f..6b4281ad661 100644 --- a/src/gallium/auxiliary/os/os_thread.h +++ b/src/gallium/auxiliary/os/os_thread.h @@ -56,7 +56,14 @@ typedef pthread_t pipe_thread; static INLINE pipe_thread pipe_thread_create( void *(* routine)( void *), void *param ) { pipe_thread thread; - if (pthread_create( &thread, NULL, routine, param )) + sigset_t saved_set, new_set; + int ret; + + sigfillset(&new_set); + pthread_sigmask(SIG_SETMASK, &new_set, &saved_set); + ret = pthread_create( &thread, NULL, routine, param ); + pthread_sigmask(SIG_SETMASK, &saved_set, NULL); + if (ret) return 0; return thread; } -- 2.30.2