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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-01 20:52:51 +0200 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-05-19 12:00:46 +0200 |
| commit | e76c517d0726f91447e0e2c3ba14c00896456e89 (patch) | |
| tree | caa429239407c3cfa4cfd8a4e68aae25e893ca35 /cpukit/posix | |
| parent | score: Fine grained locking for message queues (diff) | |
| download | rtems-e76c517d0726f91447e0e2c3ba14c00896456e89.tar.bz2 | |
score: Fine grained locking for semaphores
Update #2273.
Diffstat (limited to 'cpukit/posix')
| -rw-r--r-- | cpukit/posix/include/rtems/posix/semaphoreimpl.h | 14 | ||||
| -rw-r--r-- | cpukit/posix/src/sempost.c | 13 |
2 files changed, 23 insertions, 4 deletions
diff --git a/cpukit/posix/include/rtems/posix/semaphoreimpl.h b/cpukit/posix/include/rtems/posix/semaphoreimpl.h index 783289aa44..eeea51c488 100644 --- a/cpukit/posix/include/rtems/posix/semaphoreimpl.h +++ b/cpukit/posix/include/rtems/posix/semaphoreimpl.h @@ -89,6 +89,20 @@ RTEMS_INLINE_ROUTINE POSIX_Semaphore_Control *_POSIX_Semaphore_Get ( _Objects_Get( &_POSIX_Semaphore_Information, (Objects_Id)*id, location ); } +RTEMS_INLINE_ROUTINE POSIX_Semaphore_Control * +_POSIX_Semaphore_Get_interrupt_disable( + sem_t *id, + Objects_Locations *location, + ISR_lock_Context *lock_context +) +{ + return (POSIX_Semaphore_Control *) _Objects_Get_isr_disable( + &_POSIX_Semaphore_Information, + (Objects_Id)*id, + location, + lock_context + ); +} /** * @brief POSIX Semaphore Create Support diff --git a/cpukit/posix/src/sempost.c b/cpukit/posix/src/sempost.c index f139c9ab67..9c8c673ddb 100644 --- a/cpukit/posix/src/sempost.c +++ b/cpukit/posix/src/sempost.c @@ -37,8 +37,13 @@ int sem_post( { POSIX_Semaphore_Control *the_semaphore; Objects_Locations location; + ISR_lock_Context lock_context; - the_semaphore = _POSIX_Semaphore_Get( sem, &location ); + the_semaphore = _POSIX_Semaphore_Get_interrupt_disable( + sem, + &location, + &lock_context + ); switch ( location ) { case OBJECTS_LOCAL: @@ -46,12 +51,12 @@ int sem_post( &the_semaphore->Semaphore, the_semaphore->Object.id, #if defined(RTEMS_MULTIPROCESSING) - NULL /* POSIX Semaphores are local only */ + NULL, /* POSIX Semaphores are local only */ #else - NULL + NULL, #endif + &lock_context ); - _Objects_Put( &the_semaphore->Object ); return 0; #if defined(RTEMS_MULTIPROCESSING) |