posix support initially added

c/src/exec/posix/base/sched.h

@@ -0,0 +1,87 @@
+/*  sched.h
+ *
+ */
+
+
+#ifndef __POSIX_SCHEDULING_h
+#define __POSIX_SCHEDULING_h
+
+#include <rtems/posix/features.h>
+
+#if defined(_POSIX_PRIORITY_SCHEDULING)
+
+#include <sys/types.h>
+#include <time.h>
+#include <sys/sched.h>
+#include <pthread.h>
+
+/*
+ *  13.3.1 Set Scheduling Parameters, P1003.1b-1993, p. 252
+ *
+ */
+
+int sched_setparam(
+  pid_t                     pid,
+  const struct sched_param *param
+);
+
+/*
+ *  13.3.2 Set Scheduling Parameters, P1003.1b-1993, p. 253
+ */
+
+int sched_getparam(
+  pid_t                     pid,
+  const struct sched_param *param
+);
+
+/*
+ *  13.3.3 Set Scheduling Policy and Scheduling Parameters, 
+ *         P1003.1b-1993, p. 254
+ */
+
+int sched_setscheduler(
+  pid_t                     pid,
+  int                       policy,
+  const struct sched_param *param
+);
+
+/*
+ *  13.3.4 Get Scheduling Policy, P1003.1b-1993, p. 256
+ */
+
+int sched_getscheduler(
+  pid_t                     pid
+);
+
+/*
+ *  13.3.6 Get Scheduling Parameter Limits, P1003.1b-1993, p. 258
+ */
+
+int sched_get_priority_max(
+  int  policy
+);
+
+int sched_get_priority_min(
+  int  policy
+);
+
+int sched_rr_get_interval(
+  pid_t             pid,
+  struct timespec  *interval
+);
+
+#endif /* _POSIX_PRIORITY_SCHEDULING */
+
+#if defined(_POSIX_THREADS) || defined(_POSIX_PRIORITY_SCHEDULING)
+
+/*
+ *  13.3.5 Yield Processor, P1003.1b-1993, p. 257
+ */
+
+int sched_yield( void );
+
+#endif /* _POSIX_THREADS or _POSIX_PRIORITY_SCHEDULING */
+
+#endif
+/* end of include file */
+