source: rtems/cpukit/rtems/src/ratemonresetstatistics.c @ 90960bd

5
Last change on this file since 90960bd was 90960bd, checked in by Sebastian Huber <sebastian.huber@…>, on 03/21/16 at 14:01:57

rtems: Rework rate-monotonic scheduler

Use the default thread lock to protect rate-monotonic state changes.
This avoids use of the Giant lock. Split rtems_rate_monotonic_period()
body into several static functions. Introduce a new thread wait class
THREAD_WAIT_CLASS_PERIOD for period objects to synchronize the blocking
operation.

Close #2631.

  • Property mode set to 100644
File size: 984 bytes
Line 
1/**
2 * @file
3 *
4 * @brief RTEMS Rate Monotonic Reset Statistics
5 * @ingroup ClassicRateMon Rate Monotonic Scheduler
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 <rtems/rtems/ratemonimpl.h>
22
23rtems_status_code rtems_rate_monotonic_reset_statistics(
24  rtems_id id
25)
26{
27  Rate_monotonic_Control *the_period;
28  ISR_lock_Context        lock_context;
29  Thread_Control         *owner;
30
31  the_period = _Rate_monotonic_Get( id, &lock_context );
32  if ( the_period == NULL ) {
33    return RTEMS_INVALID_ID;
34  }
35
36  owner = the_period->owner;
37  _Rate_monotonic_Acquire_critical( owner, &lock_context );
38  _Rate_monotonic_Reset_statistics( the_period );
39  _Rate_monotonic_Release( owner, &lock_context );
40  return RTEMS_SUCCESSFUL;
41}
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