| Rev | Author | # | Line |
|---|---|---|---|
| 1 | perry | 1 | !!NAME |
| 2 | |||
| 3 | |||
| 4 | sched_yield - yield the processor | ||
| 5 | !!SYNOPSIS | ||
| 5 | PerryLorier | 6 | __#include <sched.h>__ |
| 1 | perry | 7 | |
| 5 | PerryLorier | 8 | __int sched_yield(void);__ |
| 1 | perry | 9 | !!DESCRIPTION |
| 5 | PerryLorier | 10 | A process can relinquish the processor voluntarily without blocking by calling sched_yield(2). The process will then be moved to the end of the queue for its static priority and a new process gets to run. |
| 1 | perry | 11 | |
| 5 | PerryLorier | 12 | Note: If the current process is the only process in the highest priority list at that time, this process will continue to run after a call to sched_yield(2). |
| 1 | perry | 13 | |
| 6 | PerryLorier | 14 | POSIX systems on which sched_yield(2) is available define ''_POSIX_PRIORITY_SCHEDULING'' in <unistd.h>'' |
| 1 | perry | 15 | |
| 16 | !!RETURN VALUE | ||
| 5 | PerryLorier | 17 | On success, __sched_yield__ returns 0. On error, -1 is returned, and ''errno'' is set appropriately. |
| 1 | perry | 18 | |
| 19 | !!CONFORMING TO | ||
| 5 | PerryLorier | 20 | POSIX.1b (formerly POSIX.4) |
| 1 | perry | 21 | |
| 22 | !!SEE ALSO | ||
| 5 | PerryLorier | 23 | sched_setscheduler(2) for a description of Linux scheduling. |
| 1 | perry | 24 | |
| 5 | PerryLorier | 25 | ''Programming for the real world - POSIX.4'' by Bill O. Gallmeister, O'Reilly'' IEEE Std 1003.1b-1993'' (POSIX.1b standard)'' ISO/IEC 9945-1:1996'' |
| 1 | perry | 26 | ---- |
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