diff options
Diffstat (limited to 'cpukit/posix/src/sched_rr_get_interval.c')
-rw-r--r-- | cpukit/posix/src/sched_rr_get_interval.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/cpukit/posix/src/sched_rr_get_interval.c b/cpukit/posix/src/sched_rr_get_interval.c new file mode 100644 index 0000000000..2cd1625743 --- /dev/null +++ b/cpukit/posix/src/sched_rr_get_interval.c @@ -0,0 +1,43 @@ +/* + * 13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258 + * + * 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 <sched.h> +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/score/tod.h> +#include <rtems/score/thread.h> +#include <rtems/seterr.h> + +int sched_rr_get_interval( + pid_t pid, + struct timespec *interval +) +{ + /* + * Only supported for the "calling process" (i.e. this node). + */ + + if ( pid && pid != getpid() ) + rtems_set_errno_and_return_minus_one( ESRCH ); + + if ( !interval ) + rtems_set_errno_and_return_minus_one( EINVAL ); + + _Timespec_From_ticks( _Thread_Ticks_per_timeslice, interval ); + return 0; +} |