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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-04-20 08:52:52 +0200 |
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committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2015-04-21 08:25:31 +0200 |
commit | 3bf4a9fac441f90ccb79da69c67974d903da4c1a (patch) | |
tree | dfe9f5a2e0f5ee28d3c0ab346dcfe7a4d4b5ae9a /cpukit/rtems/src/semobtain.c | |
parent | score: _Objects_Get_isr_disable() (diff) | |
download | rtems-3bf4a9fac441f90ccb79da69c67974d903da4c1a.tar.bz2 |
score: _Objects_Get_isr_disable()
Do not disable thread dispatching and do not acquire the Giant lock.
This makes it possible to use this object get variant for fine grained
locking.
Update #2273.
Diffstat (limited to 'cpukit/rtems/src/semobtain.c')
-rw-r--r-- | cpukit/rtems/src/semobtain.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cpukit/rtems/src/semobtain.c b/cpukit/rtems/src/semobtain.c index 152274ea0a..0edac96264 100644 --- a/cpukit/rtems/src/semobtain.c +++ b/cpukit/rtems/src/semobtain.c @@ -56,6 +56,7 @@ rtems_status_code rtems_semaphore_obtain( attribute_set = the_semaphore->attribute_set; wait = !_Options_Is_no_wait( option_set ); #if defined(RTEMS_SMP) + _Thread_Disable_dispatch(); if ( _Attributes_Is_multiprocessor_resource_sharing( attribute_set ) ) { MRSP_Status mrsp_status; @@ -66,6 +67,7 @@ rtems_status_code rtems_semaphore_obtain( wait, timeout ); + _Thread_Enable_dispatch(); _Objects_Put_for_get_isr_disable( &the_semaphore->Object ); return _Semaphore_Translate_MRSP_status_code( mrsp_status ); } else @@ -79,6 +81,9 @@ rtems_status_code rtems_semaphore_obtain( timeout, &lock_context ); +#if defined(RTEMS_SMP) + _Thread_Enable_dispatch(); +#endif _Objects_Put_for_get_isr_disable( &the_semaphore->Object ); return _Semaphore_Translate_core_mutex_return_code( executing->Wait.return_code ); @@ -93,6 +98,9 @@ rtems_status_code rtems_semaphore_obtain( timeout, &lock_context ); +#if defined(RTEMS_SMP) + _Thread_Enable_dispatch(); +#endif _Objects_Put_for_get_isr_disable( &the_semaphore->Object ); return _Semaphore_Translate_core_semaphore_return_code( executing->Wait.return_code ); |