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pthread_attr(3)          BSD Library Functions Manual          pthread_attr(3)


NAME

     pthread_attr_init, pthread_attr_destroy, pthread_attr_setstack,
     pthread_attr_getstack, pthread_attr_setguardsize,
     pthread_attr_getguardsize -- thread attribute operations


SYNOPSIS

     #include <pthread.h>

     int
     pthread_attr_init(pthread_attr_t *attr);

     int
     pthread_attr_destroy(pthread_attr_t *attr);

     int
     pthread_attr_setstack(pthread_attr_t *attr, void *stackaddr,
         size_t stacksize);

     int
     pthread_attr_getstack(const pthread_attr_t * restrict attr,
         void ** restrict stackaddr, size_t * restrict stacksize);

     int
     pthread_attr_setstacksize(pthread_attr_t *attr, size_t stacksize);

     int
     pthread_attr_getstacksize(const pthread_attr_t *attr, size_t *stacksize);

     int
     pthread_attr_setguardsize(pthread_attr_t *attr, size_t guardsize);

     int
     pthread_attr_getguardsize(const pthread_attr_t *attr, size_t *guardsize);

     int
     pthread_attr_setstackaddr(pthread_attr_t *attr, void *stackaddr);

     int
     pthread_attr_getstackaddr(const pthread_attr_t *attr, void **stackaddr);

     int
     pthread_attr_setdetachstate(pthread_attr_t *attr, int detachstate);

     int
     pthread_attr_getdetachstate(const pthread_attr_t *attr,
         int *detachstate);

     int
     pthread_attr_setinheritsched(pthread_attr_t *attr, int inheritsched);

     int
     pthread_attr_getinheritsched(const pthread_attr_t *attr,
         int *inheritsched);

     int
     pthread_attr_setschedparam(pthread_attr_t *attr,
         const struct sched_param *param);

     int
     pthread_attr_getschedparam(const pthread_attr_t *attr,
         struct sched_param *param);

     int
     pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy);

     int
     pthread_attr_getschedpolicy(const pthread_attr_t *attr, int *policy);

     int
     pthread_attr_setscope(pthread_attr_t *attr, int contentionscope);

     int
     pthread_attr_getscope(const pthread_attr_t *attr, int *contentionscope);


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 sec-
     ond function parameter.


RETURN VALUES

     If successful, these functions return 0.  Otherwise, an error number is
     returned to indicate the error.


ERRORS

     The pthread_attr_init() function will fail if:

     [ENOMEM]           Out of memory.

     The pthread_attr_destroy() function will fail if:

     [EINVAL]           Invalid value for attr.


SEE ALSO

     pthread_attr_affinity_np(3), pthread_attr_get_np(3), 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() functions conform to ISO/IEC 9945-1:1996
     (``POSIX.1'')

     The 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() functions conform to
     Version 2 of the Single UNIX Specification (``SUSv2'')

BSD                             January 8, 2010                            BSD

Mac OS X 10.12.3 - Generated Sun Feb 5 15:44:13 CST 2017
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