4.9
Last change
on this file since 37ac61f0 was
37ac61f0,
checked in by Joel Sherrill <joel.sherrill@…>, on 12/03/08 at 21:01:09
|
2008-12-03 Joel Sherrill <joel.sherrill@…>
PR 1347/cpukit
- rtems/include/rtems/rtems/timer.h, rtems/src/rtemstimer.c,
rtems/src/timerreset.c, rtems/src/timerserver.c,
rtems/src/timerserverfireafter.c, rtems/src/timerserverfirewhen.c,
score/Makefile.am, score/include/rtems/score/watchdog.h: Rework Timer
Server to ensure that the context allows for blocking, allocating
memory, and acquiring semaphores and mutexes.
- score/src/watchdogadjusttochain.c: New file.
|
-
Property mode set to
100644
|
File size:
1.4 KB
|
Line | |
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1 | /** |
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2 | * @file watchdogadjusttochain.c |
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3 | * |
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4 | * This is used by the Timer Server task. |
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5 | */ |
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6 | |
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7 | /* COPYRIGHT (c) 1989-2008. |
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8 | * On-Line Applications Research Corporation (OAR). |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.com/license/LICENSE. |
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13 | * |
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14 | * $Id$ |
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15 | */ |
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16 | |
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17 | #if HAVE_CONFIG_H |
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18 | #include "config.h" |
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19 | #endif |
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20 | |
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21 | #include <rtems/system.h> |
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22 | #include <rtems/score/isr.h> |
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23 | #include <rtems/score/watchdog.h> |
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24 | |
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25 | void _Watchdog_Adjust_to_chain( |
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26 | Chain_Control *header, |
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27 | Watchdog_Interval units_arg, |
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28 | Chain_Control *to_fire |
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29 | |
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30 | ) |
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31 | { |
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32 | Watchdog_Interval units = units_arg; |
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33 | ISR_Level level; |
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34 | Chain_Node *node; |
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35 | |
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36 | if ( !units ) { |
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37 | return; |
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38 | } |
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39 | _ISR_Disable( level ); |
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40 | |
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41 | if ( !_Chain_Is_empty( header ) ) { |
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42 | while ( units ) { |
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43 | if ( units < _Watchdog_First( header )->delta_interval ) { |
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44 | _Watchdog_First( header )->delta_interval -= units; |
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45 | break; |
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46 | } else { |
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47 | units -= _Watchdog_First( header )->delta_interval; |
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48 | _Watchdog_First( header )->delta_interval = 0; |
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49 | |
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50 | do { |
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51 | node = _Chain_Get_unprotected( header ); |
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52 | _Chain_Append_unprotected( to_fire, node ); |
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53 | |
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54 | _ISR_Flash( level ); |
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55 | |
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56 | } while ( !_Chain_Is_empty( header ) && |
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57 | _Watchdog_First( header )->delta_interval == 0 ); |
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58 | |
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59 | if ( _Chain_Is_empty( header ) ) |
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60 | break; |
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61 | } |
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62 | } |
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63 | |
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64 | } |
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65 | _ISR_Enable( level ); |
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66 | } |
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67 | |
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