PTHREAD_SCHEDPARAM(3) BSD Programmer's Manual PTHREAD_SCHEDPARAM(3)
pthread_setschedparam, pthread_getschedparam - thread scheduling parame- ter manipulation
#include <pthread.h> int pthread_setschedparam(pthread_t thread, int policy, const struct sched_param *param); int pthread_getschedparam(pthread_t thread, int *policy, struct sched_param *param);
The pthread_setschedparam() and pthread_getschedparam() functions set and get the scheduling parameters of individual threads. The scheduling poli- cy for a thread can either be SCHED_FIFO (first in, first out) or SCHED_RR (round-robin). The thread priority (accessed via param- >sched_priority) must be at least PTHREAD_MIN_PRIORITY and no more than PTHREAD_MAX_PRIORITY.
If successful, these functions return 0. Otherwise, an error number is returned to indicate the error.
pthread_setschedparam() will fail if: [EINVAL] Invalid value for policy. [ENOTSUP] Invalid value for scheduling parameters. [ESRCH] Non-existent thread thread. pthread_getschedparam() will fail if: [ESRCH] Non-existent thread thread.
pthread_setschedparam() and pthread_getschedparam() conform to Version 2 of the Single UNIX Specification MirOS BSD #10-current May 1, 2000 1
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