diff options
Diffstat (limited to 'cpukit/posix/src/timergetoverrun.c')
-rw-r--r-- | cpukit/posix/src/timergetoverrun.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/cpukit/posix/src/timergetoverrun.c b/cpukit/posix/src/timergetoverrun.c new file mode 100644 index 0000000000..1ad7bc4d04 --- /dev/null +++ b/cpukit/posix/src/timergetoverrun.c @@ -0,0 +1,58 @@ +/* + * 14.2.4 Per-Process Timers, P1003.1b-1993, p. 267 + * + * COPYRIGHT (c) 1989-2007. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <time.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/seterr.h> +#include <rtems/score/thread.h> +#include <rtems/posix/timer.h> + +/* + * timer_getoverrun + * + * The expiration of a timer must increase by one a counter. + * After the signal handler associated to the timer finishes + * its execution, _POSIX_Timer_TSR will have to set this counter to 0. + */ +int timer_getoverrun( + timer_t timerid +) +{ + int overrun; + POSIX_Timer_Control *ptimer; + Objects_Locations location; + + ptimer = _POSIX_Timer_Get( timerid, &location ); + switch ( location ) { + + case OBJECTS_LOCAL: + overrun = ptimer->overrun; + ptimer->overrun = 0; + _Thread_Enable_dispatch(); + return overrun; + +#if defined(RTEMS_MULTIPROCESSING) + case OBJECTS_REMOTE: +#endif + case OBJECTS_ERROR: + break; + } + + rtems_set_errno_and_return_minus_one( EINVAL ); +} |