source: rtems/cpukit/rtems/src/tasksetaffinity.c @ d78d529

5
Last change on this file since d78d529 was e266d13, checked in by Sebastian Huber <sebastian.huber@…>, on 05/20/16 at 13:10:27

Replace *_Get_interrupt_disable() with *_Get()

Uniformly use *_Get() to get an object by identifier with a lock
context.

  • Property mode set to 100644
File size: 1.5 KB
Line 
1/**
2 * @file
3 *
4 * @brief  RTEMS Task Set Affinity
5 * @ingroup ClassicTasks Tasks
6 */
7
8/*
9 *  COPYRIGHT (c) 2014.
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#if defined(__RTEMS_HAVE_SYS_CPUSET_H__)
22
23#include <rtems/rtems/tasks.h>
24#include <rtems/score/threadimpl.h>
25#include <rtems/score/cpusetimpl.h>
26#include <rtems/score/schedulerimpl.h>
27
28rtems_status_code rtems_task_set_affinity(
29  rtems_id         id,
30  size_t           cpusetsize,
31  const cpu_set_t *cpuset
32)
33{
34  Thread_Control   *the_thread;
35  ISR_lock_Context  lock_context;
36  Per_CPU_Control  *cpu_self;
37  bool              ok;
38
39  if ( cpuset == NULL ) {
40    return RTEMS_INVALID_ADDRESS;
41  }
42
43  the_thread = _Thread_Get( id, &lock_context );
44
45  if ( the_thread == NULL ) {
46#if defined(RTEMS_MULTIPROCESSING)
47    if ( _Thread_MP_Is_remote( id ) ) {
48      return RTEMS_ILLEGAL_ON_REMOTE_OBJECT;
49    }
50#endif
51
52    return RTEMS_INVALID_ID;
53  }
54
55  cpu_self = _Thread_Dispatch_disable_critical( &lock_context );
56  _Thread_State_acquire_critical( the_thread, &lock_context );
57
58  ok = _Scheduler_Set_affinity(
59    the_thread,
60    cpusetsize,
61    cpuset
62  );
63
64  _Thread_State_release( the_thread, &lock_context );
65  _Thread_Dispatch_enable( cpu_self );
66  return ok ? RTEMS_SUCCESSFUL : RTEMS_INVALID_NUMBER;
67}
68#endif
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