debian man page for pthread_attr_getschedparam

PTHREAD_ATTR_SETSCHEDPARAM(3)				     Linux Programmer's Manual				     PTHREAD_ATTR_SETSCHEDPARAM(3)

NAME
       pthread_attr_setschedparam, pthread_attr_getschedparam - set/get scheduling parameter attributes in thread attributes object

SYNOPSIS
       #include <pthread.h>

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

       Compile and link with -pthread.

DESCRIPTION
       The  pthread_attr_setschedparam()  function sets the scheduling parameter attributes of the thread attributes object referred to by attr to
       the values specified in the buffer pointed to by param.	These attributes determine the scheduling parameters of a thread created using the
       thread attributes object attr.

       The  pthread_attr_getschedparam() returns the scheduling parameter attributes of the thread attributes object attr in the buffer pointed to
       by param.

       Scheduling parameters are maintained in the following structure:

	   struct sched_param {
	       int sched_priority;     /* Scheduling priority */
	   };

       As can be seen, only one scheduling parameter is supported.  For details of the permitted ranges for scheduling priorities in each schedul-
       ing policy, see sched_setscheduler(2).

RETURN VALUE
       On success, these functions return 0; on error, they return a nonzero error number.

ERRORS
       POSIX.1	documents  EINVAL  and ENOTSUP errors for pthread_attr_setschedparam().  On Linux these functions always succeed (but portable and
       future-proof applications should nevertheless handle a possible error return).

CONFORMING TO
       POSIX.1-2001.

NOTES
       See pthread_attr_setschedpolicy(3) for a list of the thread scheduling policies supported on Linux.

EXAMPLE
       See pthread_setschedparam(3).

SEE ALSO
       sched_get_priority_min(2), sched_setscheduler(2), pthread_attr_init(3), pthread_attr_setinheritsched(3), pthread_attr_setschedpolicy(3),
       pthread_create(3), pthread_setschedparam(3), pthread_setschedprio(3), pthreads(7)

COLOPHON
       This page is part of release 3.44 of the Linux man-pages project.  A description of the project, and information about reporting bugs, can
       be found at http://www.kernel.org/doc/man-pages/.

Linux								    2012-03-15					     PTHREAD_ATTR_SETSCHEDPARAM(3)