source: rtems/cpukit/posix/src/sched_yield.c @ 1d572eba

5
Last change on this file since 1d572eba was d78d529, checked in by Sebastian Huber <sebastian.huber@…>, on 11/14/16 at 08:11:07

score: Add and use _Thread_Dispatch_direct()

This function is useful for operations which synchronously block, e.g.
self restart, self deletion, yield, sleep. It helps to detect if these
operations are called in the wrong context. Since the thread dispatch
necessary indicator is not used, this is more robust in some SMP
situations.

Update #2751.
  • 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_direct( cpu_self );
34  return 0;
35}
Note: See TracBrowser for help on using the repository browser.