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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-07-22 10:01:37 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2013-07-22 16:57:26 +0200 |
| commit | c2d6447df9969866e68a7087d8a2be83f23529fe (patch) | |
| tree | 8e8ac152eea85ed5cb56ab010d1312c9689ce276 /cpukit/posix/src/ualarm.c | |
| parent | posix: Statically init _POSIX_signals_Ualarm_timer (diff) | |
| download | rtems-c2d6447df9969866e68a7087d8a2be83f23529fe.tar.bz2 | |
posix: Protect ualarm()
Use thread dispatch disable/enable to ensure thread level mutual
exlusion.
Diffstat (limited to '')
| -rw-r--r-- | cpukit/posix/src/ualarm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cpukit/posix/src/ualarm.c b/cpukit/posix/src/ualarm.c index c893800d09..e94eb12492 100644 --- a/cpukit/posix/src/ualarm.c +++ b/cpukit/posix/src/ualarm.c @@ -69,6 +69,8 @@ useconds_t ualarm( the_timer = &_POSIX_signals_Ualarm_timer; + _Thread_Disable_dispatch(); + state = _Watchdog_Remove( the_timer ); if ( (state == WATCHDOG_ACTIVE) || (state == WATCHDOG_REMOVE_IT) ) { /* @@ -103,5 +105,7 @@ useconds_t ualarm( _Watchdog_Insert_ticks( the_timer, _Timespec_To_ticks( &tp ) ); } + _Thread_Enable_dispatch(); + return remaining; } |