1 files changed, 45 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..c9e3e280ca
--- /dev/null
+++ b/cpukit/posix/src/sched_rr_get_interval.c
@@ -0,0 +1,45 @@
+/*
+ *  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 <unistd.h> /* getpid */
+#include <sched.h>
+#include <errno.h>
+
+#include <rtems/system.h>
+#include <rtems/score/tod.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/timespec.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;
+}