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PTHREAD_SETSCHEDPRIO(3) - man page online | library functions

Set scheduling priority of a thread.

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2015-08-08
PTHREAD_SETSCHEDPRIO(3)             Linux Programmer's Manual             PTHREAD_SETSCHEDPRIO(3)

NAME pthread_setschedprio - set scheduling priority of a thread
SYNOPSIS #include <pthread.h> int pthread_setschedprio(pthread_t thread, int prio); Compile and link with -pthread.
DESCRIPTION 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.)
RETURN VALUE 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.
ERRORS 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. POSIX.1 also documents an ENOTSUP ("attempt was made to set the priority to an unsupported value") error for pthread_setschedparam(3).
VERSIONS This function is available in glibc since version 2.3.4.
ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). ┌───────────────────────┬───────────────┬─────────┐ │Interface │ Attribute │ Value │ ├───────────────────────┼───────────────┼─────────┤ │pthread_setschedprio() │ Thread safety │ MT-Safe │ └───────────────────────┴───────────────┴─────────┘
CONFORMING TO POSIX.1-2001, POSIX.1-2008.
NOTES 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).
SEE ALSO getrlimit(2), sched_get_priority_min(2), pthread_attr_init(3), pthread_attr_setinheritsched(3), pthread_attr_setschedparam(3), pthread_attr_setschedpolicy(3), pthread_create(3), pthread_self(3), pthread_setschedparam(3), pthreads(7), sched(7)
COLOPHON This page is part of release 4.04 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at http://www.kernel.org/doc/man-pages/.
Linux 2015-08-08 PTHREAD_SETSCHEDPRIO(3)
This manual Reference Other manuals
pthread_setschedprio(3) referred by pthread_attr_setinheritsched(3) | pthread_attr_setschedparam(3) | pthread_attr_setschedpolicy(3) | pthread_setschedparam(3) | sched_setattr(2) | sched_setscheduler(2)
refer to attributes(7) | getrlimit(2) | pthread_attr_init(3) | pthread_attr_setinheritsched(3) | pthread_attr_setschedparam(3) | pthread_attr_setschedpolicy(3) | pthread_create(3) | pthread_self(3) | pthread_setschedparam(3) | pthreads(7) | sched(7) | sched_get_priority_max(2)