pthread_setschedprio - set scheduling priority of a thread
int pthread_setschedprio(pthread_t thread, int prio);
Compile and link with -pthread.
The pthread_setschedprio() function sets the scheduling priority of the thread thread to the value specified in prio. (By contrast pthread_setschedparam(3) changes both the scheduling policy and priority of a thread.)
On success, this function returns 0; on error, it returns a nonzero error number. If pthread_setschedprio() fails, the scheduling priority of thread is not changed.
|EINVAL||prio is not valid for the scheduling policy of the specified thread.|
|EPERM||The caller does not have appropriate privileges to set the specified priority.|
|ESRCH||No thread with the ID thread could be found.|
This function is available in glibc since version 2.3.4.
For an explanation of the terms used in this section, see attributes(7).
For a description of the permissions required to, and the effect of, changing a thread’s scheduling priority, and details of the permitted ranges for priorities in each scheduling policy, see sched(7).