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NetBSD 6.1.5 - man page for pthread_schedparam (netbsd section 3)

PTHREAD_SCHEDPARAM(3)		   BSD Library Functions Manual 	    PTHREAD_SCHEDPARAM(3)

NAME
     pthread_setschedparam, pthread_getschedparam -- thread scheduling parameter manipulation

LIBRARY
     POSIX Threads Library (libpthread, -lpthread)

SYNOPSIS
     #include <pthread.h>

     int
     pthread_setschedparam(pthread_t thread, int policy, const struct sched_param *param);

     int
     pthread_getschedparam(pthread_t thread, int * restrict policy,
	 struct sched_param * restrict param);

DESCRIPTION
     The pthread_setschedparam() and pthread_getschedparam() functions set and get the scheduling
     parameters of individual threads.	The scheduling policy for a thread can be:

	   SCHED_FIFO	First in, first out.

	   SCHED_RR	Round-robin.

	   SCHED_OTHER	The system default.

     The thread priority (accessed via param->sched_priority) must be at least
     PTHREAD_MIN_PRIORITY and no more than PTHREAD_MAX_PRIORITY.

RETURN VALUES
     If successful, these functions return 0.  Otherwise, an error number is returned to indicate
     the error.

ERRORS
     pthread_setschedparam() may fail if:

     [EINVAL]		The value specified by policy is invalid.

     [ENOTSUP]		Invalid value for scheduling parameters.

     [ESRCH]		Non-existent thread thread.

     pthread_getschedparam() may fail if:

     [ESRCH]		Non-existent thread thread.

SEE ALSO
     pthread_attr_getschedparam(3), sched(3)

STANDARDS
     Both functions conform to IEEE Std 1003.1-2001 (``POSIX.1'').

BSD					   July 9, 2010 				      BSD


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