source: rtems/cpukit/score/src/schedulercbsattachthread.c @ 04bf7cb

4.11
Last change on this file since 04bf7cb was 04bf7cb, checked in by Ralf Corsepius <ralf.corsepius@…>, on Dec 6, 2011 at 7:12:42 AM

2011-12-06 Ralf Corsépius <ralf.corsepius@…>

  • score/src/schedulercbsattachthread.c, score/src/schedulercbsdestroyserver.c, score/src/schedulercbsdetachthread.c, score/src/schedulercbsgetapprovedbudget.c, score/src/schedulercbsgetexecutiontime.c, score/src/schedulercbsgetparameters.c, score/src/schedulercbsgetremainingbudget.c, score/src/schedulercbssetparameters.c: Remove checks for server_id < 0 (server_id is unsigned).
  • Property mode set to 100644
File size: 1.8 KB
Line 
1/*
2 *  Copyright (C) 2011 Petr Benes.
3 *  Copyright (C) 2011 On-Line Applications Research Corporation (OAR).
4 *
5 *  The license and distribution terms for this file may be
6 *  found in the file LICENSE in this distribution or at
7 *  http://www.rtems.com/license/LICENSE.
8 *
9 *  $Id$
10 */
11
12#if HAVE_CONFIG_H
13#include "config.h"
14#endif
15
16#include <rtems/system.h>
17#include <rtems/config.h>
18#include <rtems/score/scheduler.h>
19#include <rtems/score/schedulercbs.h>
20#include <rtems/rtems/object.h>
21
22int _Scheduler_CBS_Attach_thread (
23  Scheduler_CBS_Server_id server_id,
24  rtems_id                task_id
25)
26{
27  Objects_Locations location;
28  Thread_Control *the_thread;
29  Scheduler_CBS_Per_thread *sched_info;
30
31  if ( server_id >= _Scheduler_CBS_Maximum_servers )
32    return SCHEDULER_CBS_ERROR_INVALID_PARAMETER;
33
34  the_thread = _Thread_Get(task_id, &location);
35  /* The routine _Thread_Get may disable dispatch and not enable again. */
36  if ( the_thread )
37    _Thread_Enable_dispatch();
38  if ( !the_thread )
39    return SCHEDULER_CBS_ERROR_INVALID_PARAMETER;
40
41  sched_info = (Scheduler_CBS_Per_thread *) the_thread->scheduler_info;
42
43  /* Thread is already attached to a server. */
44  if ( sched_info->cbs_server )
45    return SCHEDULER_CBS_ERROR_FULL;
46
47  /* Server is not valid. */
48  if ( !_Scheduler_CBS_Server_list[server_id] )
49    return SCHEDULER_CBS_ERROR_NOSERVER;
50
51  /* Server is already attached to a thread. */
52  if ( _Scheduler_CBS_Server_list[server_id]->task_id != -1 )
53    return SCHEDULER_CBS_ERROR_FULL;
54
55  _Scheduler_CBS_Server_list[server_id]->task_id = task_id;
56  sched_info->cbs_server = (void *) _Scheduler_CBS_Server_list[server_id];
57
58  the_thread->budget_callout   = _Scheduler_CBS_Budget_callout;
59  the_thread->budget_algorithm = THREAD_CPU_BUDGET_ALGORITHM_CALLOUT;
60  the_thread->is_preemptible   = true;
61
62  return SCHEDULER_CBS_OK;
63}
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