PTHREAD_SCHEDPARAM(3)   NetBSD Library Functions Manual  PTHREAD_SCHEDPARAM(3)


NAME
pthread_setschedparam, pthread_getschedparam -- thread scheduling parame- ter 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 pol- icy for a thread can either be SCHED_FIFO (first in, first out), SCHED_RR (round-robin), or SCHED_OTHER (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.
STANDARDS
pthread_setschedparam() and pthread_getschedparam() conform to ISO/IEC 9945-1:1996 (``POSIX.1''). NetBSD 5.0 January 30, 2003 NetBSD 5.0

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