pthread_attr_getinheritsched, pthread_attr_setschedparam,
     pthread_attr_getschedparam, pthread_attr_setschedpolicy,
     pthread_attr_getschedpolicy, pthread_attr_setscope, pthread_attr_getscope
     -- 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_setstacksize(pthread_attr_t *attr, size_t stacksize);

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

     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
     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

     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]           stacksize is less than PTHREAD_STACK_MIN.

     pthread_attr_setdetachstate() will fail if:

     [EINVAL]           Invalid value for 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.

     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