pthread_attr_destroy    Destroys a thread attributes object.

   pthread_attr_getdetachstate
                           Obtains the detachstate attribute from the
                           specified thread attributes object.

   pthread_attr_getguardsize
                           Obtains the guardsize attribute of the
                           specified thread attributes object.

   pthread_attr_getinheritsched
                           Obtains the inherit scheduling attribute
                           from the specified thread attributes object.

   pthread_attr_getschedparam
                           Obtains the scheduling parameters for an
                           attribute of the specified thread attributes
                           object.

   pthread_attr_getschedpolicy
                           Obtains the scheduling policy attribute of
                           the specified thread attributes object.

   pthread_attr_getscope   Obtains the contention-scope attribute of
                           the specified thread attributes object.

   pthread_attr_getstackaddr
                           Obtains the stackaddr attribute of the
                           specified thread attributes object.

   pthread_attr_getstacksize
                           Obtains the stacksize attribute of the
                           specified thread attributes object.

   pthread_attr_init       Initializes a thread attributes object.

   pthread_attr_setdetachstate
                           Changes the detachstate attribute in the
                           specified thread attributes object.

   pthread_attr_setguardsize
                           Changes the guardsize attribute of the
                           specified thread attributes object.

   pthread_attr_setinheritsched
                           Changes the inherit scheduling attribute
                           of the specified thread attributes object.

   pthread_attr_setschedparam
                           Changes the values of the parameters
                           associated with the scheduling policy
                           attribute of the specified thread attri-
                           butes object.

   pthread_attr_setschedpolicy
                           Changes the scheduling policy attribute
                           of the specified thread attributes object.

   pthread_attr_setstackaddr
                           Changes the stackaddr attribute in the
                           specified thread attributes object.

   pthread_attr_setstacksize
                           Changes the stacksize attribute in the
                           specified thread attributes object.