source: rtems/cpukit/score/src/schedulercbsgetserverid.c @ 82db8e56

4.115
Last change on this file since 82db8e56 was 82db8e56, checked in by Joel Sherrill <joel.sherrill@…>, on 09/15/11 at 15:49:32

2011-09-15 Petr Benes <benesp16@…>

PR 1906/cpukit

  • sapi/Makefile.am, sapi/preinstall.am, sapi/include/confdefs.h, score/Makefile.am, score/preinstall.am: Add the CBS (Constant Bandwidth Server) scheduler. This is a complex scheduling policy built atop of the EDF scheduler. Unlike other schedulers, this one provides a user API and handles not only deadlines of tasks but also claimed budget per period. The main aim of the scheduler is isolation of tasks so that each task is guaranteed to meet all deadlines regardless of how other tasks behave.
  • sapi/include/rtems/cbs.h, sapi/inline/rtems/cbs.inl, score/include/rtems/score/schedulercbs.h, score/src/schedulercbs.c, score/src/schedulercbsattachthread.c, score/src/schedulercbscleanup.c, score/src/schedulercbscreateserver.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/schedulercbsgetserverid.c, score/src/schedulercbsreleasejob.c, score/src/schedulercbssetparameters.c, score/src/schedulercbsunblock.c: New files.
  • Property mode set to 100644
File size: 857 bytes
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
21int _Scheduler_CBS_Get_server_id (
22  rtems_id                 task_id,
23  Scheduler_CBS_Server_id *server_id
24)
25{
26  unsigned int i;
27  for ( i = 0; i<_Scheduler_CBS_Maximum_servers; i++ ) {
28    if ( _Scheduler_CBS_Server_list[i] &&
29         _Scheduler_CBS_Server_list[i]->task_id == task_id ) {
30      *server_id = i;
31      return SCHEDULER_CBS_OK;
32    }
33  }
34  return SCHEDULER_CBS_ERROR_NOSERVER;
35}
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