pthread_attr_getschedparam

       uling 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
       scheduling 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_setsched-
       param().  On Linux these functions always  succeed  (but  portable  and
       future-proof  applications  should nevertheless handle a possible error
       return).

CONFORMING TO
       POSIX.1-2001.

EXAMPLE
       See pthread_setschedparam(3).

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

SEE ALSO
Linux                             2010-02-03     PTHREAD_ATTR_SETSCHEDPARAM(3)
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