pthread_setschedprio - set scheduling priority of a thread
#include <pthread.h> int pthread_setschedprio(pthread_t thread, int prio); Compile and link with -pthread.
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.
prio is not valid for the scheduling policy of the specified
The caller does not have appropriate privileges to set the specified priority.
No thread with the ID
thread could be found.
POSIX.1 also documents an ENOTSUP ("attempt was made to set the priority to an unsupported value") error for pthread_setschedparam(3).
This function is available in glibc since version 2.3.4.
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).
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