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Diffstat (limited to 'c/src/exec/posix/src/sigtimedwait.c')
-rw-r--r--c/src/exec/posix/src/sigtimedwait.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/c/src/exec/posix/src/sigtimedwait.c b/c/src/exec/posix/src/sigtimedwait.c
index b3b2de247d..276b9b61af 100644
--- a/c/src/exec/posix/src/sigtimedwait.c
+++ b/c/src/exec/posix/src/sigtimedwait.c
@@ -21,6 +21,7 @@
#include <rtems/posix/psignal.h>
#include <rtems/posix/seterr.h>
#include <rtems/posix/time.h>
+#include <rtems/score/isr.h>
int _POSIX_signals_Get_highest(
sigset_t set
@@ -55,7 +56,27 @@ int sigtimedwait(
siginfo_t signal_information;
siginfo_t *the_info;
int signo;
+ ISR_Level level;
+ /*
+ * Error check parameters before disabling interrupts.
+ */
+
+ interval = 0;
+ if ( timeout ) {
+
+ if ( timeout->tv_nsec < 0 ||
+ timeout->tv_nsec >= TOD_NANOSECONDS_PER_SECOND) {
+ set_errno_and_return_minus_one( EINVAL );
+ }
+
+ interval = _POSIX_Timespec_to_interval( timeout );
+ }
+
+ /*
+ * Initialize local variables.
+ */
+
the_info = ( info ) ? info : &signal_information;
the_thread = _Thread_Executing;
@@ -68,11 +89,13 @@ int sigtimedwait(
/* API signals pending? */
+ _ISR_Disable( level );
if ( *set & api->signals_pending ) {
/* XXX real info later */
the_info->si_signo = _POSIX_signals_Get_highest( api->signals_pending );
- _POSIX_signals_Clear_signals( api, the_info->si_signo, the_info,
- FALSE, FALSE );
+ _POSIX_signals_Clear_signals( api, the_info->si_signo, the_info, FALSE, FALSE );
+ _ISR_Enable( level );
+
the_info->si_code = SI_USER;
the_info->si_value.sival_int = 0;
return the_info->si_signo;
@@ -83,6 +106,7 @@ int sigtimedwait(
if ( *set & _POSIX_signals_Pending ) {
signo = _POSIX_signals_Get_highest( _POSIX_signals_Pending );
_POSIX_signals_Clear_signals( api, signo, the_info, TRUE, FALSE );
+ _ISR_Enable( level );
the_info->si_signo = signo;
the_info->si_code = SI_USER;
@@ -90,15 +114,6 @@ int sigtimedwait(
return signo;
}
- interval = 0;
- if ( timeout ) {
-
- if (timeout->tv_nsec < 0 || timeout->tv_nsec >= TOD_NANOSECONDS_PER_SECOND)
- set_errno_and_return_minus_one( EINVAL );
-
- interval = _POSIX_Timespec_to_interval( timeout );
- }
-
the_info->si_signo = -1;
_Thread_Disable_dispatch();
@@ -107,6 +122,7 @@ int sigtimedwait(
the_thread->Wait.option = *set;
the_thread->Wait.return_argument = (void *) the_info;
_Thread_queue_Enter_critical_section( &_POSIX_signals_Wait_queue );
+ _ISR_Enable( level );
_Thread_queue_Enqueue( &_POSIX_signals_Wait_queue, interval );
_Thread_Enable_dispatch();
@@ -115,9 +131,7 @@ int sigtimedwait(
* the signal.
*/
- _POSIX_signals_Clear_signals( api, the_info->si_signo, the_info,
- FALSE, FALSE );
-
+ _POSIX_signals_Clear_signals( api, the_info->si_signo, the_info, FALSE, FALSE );
errno = _Thread_Executing->Wait.return_code;
return the_info->si_signo;
}