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0 Command: pthread_schedparam | Section: 3 | Source: FreeBSD | File: pthread_schedparam.3.gz
PTHREAD_SCHEDPARAM(3) FreeBSD 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 either be SCHED_FIFO (first in, first out), SCHED_RR (round-robin), or SCHED_OTHER (timesharing). Valid thread priorities (accessed via param->sched_priority) must be within the range returned by the sched_get_priority_min(2) and sched_get_priority_max(2) system calls. RETURN VALUES If successful, these functions return 0. Otherwise, an error number is returned to indicate the error. ERRORS The pthread_setschedparam() function will fail if: [EINVAL] Invalid value for policy. [ENOTSUP] Invalid value for scheduling parameters. [EPERM] The calling thread does not have sufficient privilege to perform the operation. [ESRCH] Non-existent thread thread. The pthread_getschedparam() function will fail if: [ESRCH] Non-existent thread thread. SEE ALSO sched_get_priority_max(2), sched_get_priority_min(2) STANDARDS The pthread_setschedparam() and pthread_getschedparam() functions conform to Version 2 of the Single UNIX Specification ("SUSv2"). FreeBSD 14.1-RELEASE-p8 October 17, 2022 FreeBSD 14.1-RELEASE-p8

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