source: rtems/cpukit/posix/src/sched_yield.c @ 127c20eb

5
Last change on this file since 127c20eb was 75aef54, checked in by Sebastian Huber <sebastian.huber@…>, on 03/17/16 at 05:16:23

posix: Avoid Giant lock in sched_yield()

Update #2555.
  • Property mode set to 100644
File size: 702 bytes
Line 
1/**
2 * @file
3 *
4 * @brief Yield Processor
5 * @ingroup POSIXAPI
6 */
7
8/*
9 *  COPYRIGHT (c) 1989-2007.
10 *  On-Line Applications Research Corporation (OAR).
11 *
12 *  The license and distribution terms for this file may be
13 *  found in the file LICENSE in this distribution or at
14 *  http://www.rtems.org/license/LICENSE.
15 */
16
17#if HAVE_CONFIG_H
18#include "config.h"
19#endif
20
21#include <sched.h>
22
23#include <rtems/score/percpu.h>
24#include <rtems/score/threaddispatch.h>
25#include <rtems/score/threadimpl.h>
26
27int sched_yield( void )
28{
29  Per_CPU_Control *cpu_self;
30
31  cpu_self = _Thread_Dispatch_disable();
32    _Thread_Yield( _Per_CPU_Get_executing( cpu_self ) );
33  _Thread_Dispatch_enable( cpu_self );
34  return 0;
35}
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