--- /dev/null
+#ifndef _SCHED_H_
+#define _SCHED_H_
+
+#include <pthread_impl.h>
+
+/*
+ * Scheduling paramters
+ */
+#ifndef __POSIX_LIB__
+struct sched_param { int sched_priority; char opaque[__SCHED_PARAM_SIZE__]; };
+#endif
+
+extern int sched_yield(void);
+extern int sched_get_priority_min(int);
+extern int sched_get_priority_max(int);
+#endif /* _SCHED_H_ */
+