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pthread_attr_setschedparam(3) [netbsd man page]


pthread_attr_getschedparam -- 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''). BSD
July 7, 2010 BSD

Check Out this Related Man Page

PTHREAD_ATTR(3) 					   BSD Library Functions Manual 					   PTHREAD_ATTR(3)

pthread_attr_destroy, pthread_attr_getdetachstate, pthread_attr_getinheritsched, pthread_attr_getschedparam, pthread_attr_getschedpolicy, pthread_attr_getscope, pthread_attr_getstackaddr, pthread_attr_getstacksize, pthread_attr_init, pthread_attr_setdetachstate, pthread_attr_setinheritsched, pthread_attr_setschedparam, pthread_attr_setschedpolicy, pthread_attr_setscope, pthread_attr_setstackaddr, pthread_attr_setstacksize -- thread attribute operations SYNOPSIS
#include <pthread.h> int pthread_attr_destroy(pthread_attr_t *attr); int pthread_attr_getdetachstate(const pthread_attr_t *attr, int *detachstate); int pthread_attr_getinheritsched(const pthread_attr_t *restrict attr, int *restrict inheritsched); int pthread_attr_getschedparam(const pthread_attr_t *restrict attr, struct sched_param *restrict param); int pthread_attr_getschedpolicy(const pthread_attr_t *restrict attr, int *restrict policy); int pthread_attr_getscope(const pthread_attr_t *restrict attr, int *restrict contentionscope); int pthread_attr_getstackaddr(const pthread_attr_t *restrict attr, void **restrict stackaddr); int pthread_attr_getstacksize(const pthread_attr_t *restrict attr, size_t *restrict stacksize); int pthread_attr_init(pthread_attr_t *attr); int pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate); int pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched); int pthread_attr_setschedparam(pthread_attr_t *restrict attr, const struct sched_param *restrict param); int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy); int pthread_attr_setscope(pthread_attr_t *attr, int contentionscope); int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr); int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize); DESCRIPTION
Thread attributes are used to specify parameters to pthread_create(). One attribute object can be used in multiple calls to pthread_create(), with or without modifications between calls. The pthread_attr_init() function initializes attr with all the default thread attributes. The pthread_attr_destroy() function destroys attr. The pthread_attr_set*() functions set the attribute that corresponds to each function name. The pthread_attr_get*() functions copy the value of the attribute that corresponds to each function name to the location pointed to by the second function parameter. RETURN VALUES
If successful, these functions return 0. Otherwise, an error number is returned to indicate the error. ERRORS
pthread_attr_init() will fail if: [ENOMEM] Out of memory. pthread_attr_destroy() will fail if: [EINVAL] Invalid value for attr. pthread_attr_setstacksize() will fail if: [EINVAL] Invalid value for attr. [EINVAL] stacksize is less than PTHREAD_STACK_MIN. [EINVAL] stacksize is not a multiple of the system page size. pthread_attr_setdetachstate() will fail if: [EINVAL] Invalid value for attr or detachstate. pthread_attr_setinheritsched() will fail if: [EINVAL] Invalid value for attr. pthread_attr_setschedparam() will fail if: [EINVAL] Invalid value for attr. [ENOTSUP] Invalid value for param. pthread_attr_setschedpolicy() will fail if: [EINVAL] Invalid value for attr. [ENOTSUP] Invalid or unsupported value for policy. pthread_attr_setscope() will fail if: [EINVAL] Invalid value for attr. [ENOTSUP] Invalid or unsupported value for contentionscope. SEE ALSO
pthread_create(3) STANDARDS
pthread_attr_init(), pthread_attr_destroy(), pthread_attr_setstacksize(), pthread_attr_getstacksize(), pthread_attr_setstackaddr(), pthread_attr_getstackaddr(), pthread_attr_setdetachstate(), and pthread_attr_getdetachstate() conform to ISO/IEC 9945-1:1996 (``POSIX.1'') pthread_attr_setinheritsched(), pthread_attr_getinheritsched(), pthread_attr_setschedparam(), pthread_attr_getschedparam(), pthread_attr_setschedpolicy(), pthread_attr_getschedpolicy(), pthread_attr_setscope(), and pthread_attr_getscope() conform to Version 2 of the Single UNIX Specification (``SUSv2'') BSD
April 28, 2000 BSD
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