sched03.c

来自「RTEMS (Real-Time Executive for Multiproc」· C语言 代码 · 共 52 行

/*
 *  This test file is used to verify that the header files associated with
 *  invoking this function are correct.
 *
 *  COPYRIGHT (c) 1989-1999.
 *  On-Line Applications Research Corporation (OAR).
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.rtems.com/license/LICENSE.
 *
 *  $Id: sched03.c,v 1.8.8.1 2003/09/04 18:46:27 joel Exp $
 */

#include <sched.h>

#ifndef _POSIX_PRIORITY_SCHEDULING
#error "rtems is supposed to have sched_setscheduler"
#endif
 
void test( void )
{
  pid_t  pid;
  int    policy;
  struct sched_param param;
  int    result;

  pid = 0;

  policy = SCHED_RR;
  policy = SCHED_FIFO;
  policy = SCHED_OTHER;
#ifdef _POSIX_SPORADIC_SERVER
  policy = SCHED_SPORADIC;
#endif

  /*
   *  really should use sched_get_priority_min() and sched_get_priority_max()
   */

  param.sched_priority = 0;
#ifdef _POSIX_SPORADIC_SERVER
  param.ss_low_priority = 0;
  param.ss_replenish_period.tv_sec = 0;
  param.ss_replenish_period.tv_nsec = 0;
  param.ss_initial_budget.tv_sec = 0;
  param.ss_initial_budget.tv_nsec = 0;
#endif

  result = sched_setscheduler( pid, policy, &param );
}