Ticket #2568: sched_yield-01.diff

src/system/libroot/os/scheduler.c

@@ -56 +56 @@
     return 0;
 }
 
+int
+sched_yield(void)
+{
+    _kern_thread_yield();
+    return 0;
+}
+

headers/os/kernel/scheduler.h

@@ -44 +44 @@
 int32 suggest_thread_priority(uint32 task_flags = B_DEFAULT_MEDIA_PRIORITY, 
     int32 period = 0, bigtime_t jitter = 0, bigtime_t length = 0);
 bigtime_t estimate_max_scheduling_latency(thread_id th = -1);   /* default is current thread */
+int sched_yield(void);
 }
 #else
 int32 suggest_thread_priority(uint32 what, int32 period, bigtime_t jitter, bigtime_t length);
 bigtime_t estimate_max_scheduling_latency(thread_id th);    /* default is current thread */
+int sched_yield(void);
 #endif
 
 #endif /* SCHEDULER_H */

headers/posix/sched.h

@@ +1 @@
+/*
+ * Copyright 2008, Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT/X11 license.
+ */
+#ifndef _SCHED_H_
+#define _SCHED_H_
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern int sched_yield(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif  /* _SCHED_H_ */
+