source: rtems/cpukit/score/src/watchdogremove.c @ 7fa97181

Last change on this file since 7fa97181 was a6eef8b, checked in by Joel Sherrill <joel.sherrill@…>, on 09/04/03 at 18:52:48

2003-09-04 Joel Sherrill <joel@…>

  • apiext.c, chain.c, coremsg.c, coremsgbroadcast.c, coremsgclose.c, coremsgflush.c, coremsgflushsupp.c, coremsgflushwait.c, coremsginsert.c, coremsgseize.c, coremsgsubmit.c, coremutex.c, coremutexflush.c, coremutexseize.c, coremutexsurrender.c, coresem.c, coresemflush.c, coresemseize.c, coresemsurrender.c, coretod.c, coretodset.c, coretodtickle.c, coretodtoseconds.c, coretodvalidate.c, heap.c, heapallocate.c, heapextend.c, heapfree.c, heapgetinfo.c, heapsizeofuserarea.c, heapwalk.c, interr.c, isr.c, mpci.c, object.c, objectallocate.c, objectallocatebyindex.c, objectclearname.c, objectcomparenameraw.c, objectcomparenamestring.c, objectcopynameraw.c, objectcopynamestring.c, objectextendinformation.c, objectfree.c, objectget.c, objectgetbyindex.c, objectgetisr.c, objectgetnext.c, objectgetnoprotection.c, objectinitializeinformation.c, objectmp.c, objectnametoid.c, objectshrinkinformation.c, thread.c, threadchangepriority.c, threadclearstate.c, threadclose.c, threadcreateidle.c, threaddelayended.c, threaddispatch.c, threadevaluatemode.c, threadget.c, threadhandler.c, threadidlebody.c, threadinitialize.c, threadloadenv.c, threadmp.c, threadq.c, threadqdequeue.c, threadqdequeuefifo.c, threadqdequeuepriority.c, threadqenqueue.c, threadqenqueuefifo.c, threadqenqueuepriority.c, threadqextract.c, threadqextractfifo.c, threadqextractpriority.c, threadqextractwithproxy.c, threadqfirst.c, threadqfirstfifo.c, threadqfirstpriority.c, threadqflush.c, threadqtimeout.c, threadready.c, threadreset.c, threadresettimeslice.c, threadrestart.c, threadresume.c, threadrotatequeue.c, threadsetpriority.c, threadsetstate.c, threadsettransient.c, threadstackallocate.c, threadstackfree.c, threadstart.c, threadstartmultitasking.c, threadsuspend.c, threadtickletimeslice.c, threadyieldprocessor.c, userext.c, watchdog.c, watchdogadjust.c, watchdoginsert.c, watchdogremove.c, watchdogtickle.c, wkspace.c: URL for license changed.
  • Property mode set to 100644
File size: 1.6 KB
Line 
1/*
2 *  Watchdog Handler
3 *
4 *
5 *  COPYRIGHT (c) 1989-1999.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.rtems.com/license/LICENSE.
11 *
12 *  $Id$
13 */
14
15#include <rtems/system.h>
16#include <rtems/score/isr.h>
17#include <rtems/score/watchdog.h>
18
19/*PAGE
20 *
21 *  _Watchdog_Remove
22 *
23 *  The routine removes a watchdog from a delta chain and updates
24 *  the delta counters of the remaining watchdogs.
25 */
26
27Watchdog_States _Watchdog_Remove(
28  Watchdog_Control *the_watchdog
29)
30{
31  ISR_Level         level;
32  Watchdog_States   previous_state;
33  Watchdog_Control *next_watchdog;
34
35  _ISR_Disable( level );
36  previous_state = the_watchdog->state;
37  switch ( previous_state ) {
38    case WATCHDOG_INACTIVE:
39      break;
40
41    case WATCHDOG_BEING_INSERTED: 
42   
43      /*
44       *  It is not actually on the chain so just change the state and
45       *  the Insert operation we interrupted will be aborted.
46       */
47      the_watchdog->state = WATCHDOG_INACTIVE;
48      break;
49
50    case WATCHDOG_ACTIVE:
51    case WATCHDOG_REMOVE_IT:
52
53      the_watchdog->state = WATCHDOG_INACTIVE;
54      next_watchdog = _Watchdog_Next( the_watchdog );
55
56      if ( _Watchdog_Next(next_watchdog) )
57        next_watchdog->delta_interval += the_watchdog->delta_interval;
58
59      if ( _Watchdog_Sync_count )
60        _Watchdog_Sync_level = _ISR_Nest_level;
61
62      _Chain_Extract_unprotected( &the_watchdog->Node );
63      break;
64  }
65  the_watchdog->stop_time = _Watchdog_Ticks_since_boot;
66
67  _ISR_Enable( level );
68  return( previous_state );
69}
70
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