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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-03-10 08:25:32 +0100 |
|---|---|---|
| committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2014-03-11 10:58:09 +0100 |
| commit | d50acdbb6c8213114ce887a56daea02697c9e1a1 (patch) | |
| tree | e48fb252786992308fa2dd6337c8a02db35bd10b /cpukit/posix/src/sigtimedwait.c | |
| parent | sapi: Use one SMP lock for all chains (diff) | |
| download | rtems-d50acdbb6c8213114ce887a56daea02697c9e1a1.tar.bz2 | |
score: Add local context to SMP lock API
Add a local context structure to the SMP lock API for acquire and
release pairs. This context can be used to store the ISR level and
profiling information. It may be later used to enable more
sophisticated lock algorithms, e.g. MCS locks.
There is only one lock that cannot be used with a local context. This
is the per-CPU lock since here we would have to transfer the local
context through a context switch which is very complicated.
Diffstat (limited to 'cpukit/posix/src/sigtimedwait.c')
| -rw-r--r-- | cpukit/posix/src/sigtimedwait.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/cpukit/posix/src/sigtimedwait.c b/cpukit/posix/src/sigtimedwait.c index 2f1f2cc6aa..efd215a0fd 100644 --- a/cpukit/posix/src/sigtimedwait.c +++ b/cpukit/posix/src/sigtimedwait.c @@ -78,7 +78,7 @@ int sigtimedwait( siginfo_t signal_information; siginfo_t *the_info; int signo; - ISR_Level level; + ISR_lock_Context lock_context; /* * Error check parameters before disabling interrupts. @@ -117,7 +117,7 @@ int sigtimedwait( /* API signals pending? */ - _POSIX_signals_Acquire( level ); + _POSIX_signals_Acquire( &lock_context ); if ( *set & api->signals_pending ) { /* XXX real info later */ the_info->si_signo = _POSIX_signals_Get_lowest( api->signals_pending ); @@ -129,7 +129,7 @@ int sigtimedwait( false, false ); - _POSIX_signals_Release( level ); + _POSIX_signals_Release( &lock_context ); the_info->si_code = SI_USER; the_info->si_value.sival_int = 0; @@ -141,7 +141,7 @@ int sigtimedwait( if ( *set & _POSIX_signals_Pending ) { signo = _POSIX_signals_Get_lowest( _POSIX_signals_Pending ); _POSIX_signals_Clear_signals( api, signo, the_info, true, false, false ); - _POSIX_signals_Release( level ); + _POSIX_signals_Release( &lock_context ); the_info->si_signo = signo; the_info->si_code = SI_USER; @@ -157,7 +157,7 @@ int sigtimedwait( executing->Wait.option = *set; executing->Wait.return_argument = the_info; _Thread_queue_Enter_critical_section( &_POSIX_signals_Wait_queue ); - _POSIX_signals_Release( level ); + _POSIX_signals_Release( &lock_context ); _Thread_queue_Enqueue( &_POSIX_signals_Wait_queue, executing, interval ); _Thread_Enable_dispatch(); |