内容简介
#include <sched.h>int sched_yield(void);
DESCRIPTION
A process can relinquish the processor voluntarily without blocking by callingsched_yield(). 该过程将被移到队列的末尾，它的静态优先级和一个新的过程变得运行。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().
POSIX systems on which sched_yield() is available define_POSIX_PRIORITY_SCHEDULING in <unistd.h>.
返回值
On success, sched_yield() returns 0. On error, -1 is returned, and errno is set appropriately.遵循于
POSIX.1-2001.另请参阅
Programming for the real world - POSIX.4 by Bill O. Gallmeister, O’Reilly & Associates, Inc., ISBN 1-56592-074-0
