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PTHREAD_ATTR_GETSCHEDPARAM(3) FreeBSD Library Functions Manual NAME pthread_attr_getschedparam, pthread_attr_setschedparam, pthread_attr_getschedpolicy, pthread_attr_setschedpolicy - get and set scheduling attributes LIBRARY POSIX Threads Library (libpthread, -lpthread) SYNOPSIS #include <pthread.h> int pthread_attr_getschedparam(const pthread_attr_t * restrict attr, struct sched_param * restrict param); int pthread_attr_setschedparam(pthread_attr_t *attr, const struct sched_param *param); int pthread_attr_getschedpolicy(const pthread_attr_t * restrict attr, int * restrict policy); int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy); DESCRIPTION The pthread_attr_getschedparam() and pthread_attr_setschedparam() functions obtain and set the scheduling parameter attribute in the attr object. The sched_param structure is defined in <sched.h>. At minimum this structure contains only a single member, sched_priority. Refer to pthread_schedparam(3) and sched(3) for additional details. The pthread_attr_getschedpolicy() and pthread_attr_setschedpolicy() functions get and set the scheduling policy attribute, policy, in the attr object. The supported values of policy are the same ones listed in pthread_schedparam(3). RETURN VALUES If successful, all described functions return 0. Otherwise, an error number is returned to indicate the error. ERRORS The pthread_attr_getschedparam() function may fail if: [EINVAL] An invalid parameter was specified. The pthread_attr_setschedparam() function may fail if: [EINVAL] An invalid parameter was specified. [ENOMEM] There was insufficient memory. The pthread_attr_setschedpolicy() function may fail if: [ENOMEM] There was insufficient memory. [ENOTSUP] An unsupported policy was specified. No errors are defined for pthread_attr_getschedpolicy(). SEE ALSO pthread_attr(3), pthread_schedparam(3), sched(3) STANDARDS These functions conform to IEEE Std 1003.1-2008 ("POSIX.1"). FreeBSD 14.1-RELEASE-p8 July 7, 2010 FreeBSD 14.1-RELEASE-p8