4.115
Last change
on this file since d7c3883 was
18657d1,
checked in by Sebastian Huber <sebastian.huber@…>, on 12/16/10 at 14:50:12
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2010-12-16 Sebastian Huber <sebastian.huber@…>
- score/src/watchdognanoseconds.c: New file.
- score/Makefile.am: Reflect change above.
- score/include/rtems/score/watchdog.h, score/src/coretodget.c,
score/src/coretodgetuptime.c: Do not allow NULL as nanoseconds since
last tick handler pointer.
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-
Property mode set to
100644
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File size:
1.2 KB
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1 | /* |
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2 | * Time of Day (TOD) Handler - get uptime |
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3 | */ |
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4 | |
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5 | /* COPYRIGHT (c) 1989-2008. |
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6 | * On-Line Applications Research Corporation (OAR). |
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7 | * |
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8 | * The license and distribution terms for this file may be |
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9 | * found in the file LICENSE in this distribution or at |
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10 | * http://www.rtems.com/license/LICENSE. |
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11 | * |
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12 | * $Id$ |
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13 | */ |
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14 | |
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15 | #if HAVE_CONFIG_H |
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16 | #include "config.h" |
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17 | #endif |
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18 | |
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19 | #include <rtems/system.h> |
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20 | #include <rtems/score/isr.h> |
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21 | #include <rtems/score/timestamp.h> |
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22 | #include <rtems/score/tod.h> |
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23 | #include <rtems/score/watchdog.h> |
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24 | |
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25 | /* |
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26 | * _TOD_Get_uptime |
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27 | * |
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28 | * This routine is used to obtain the system uptime |
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29 | * |
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30 | * Input parameters: |
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31 | * time - pointer to the timestamp structure |
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32 | * |
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33 | * Output parameters: NONE |
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34 | */ |
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35 | |
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36 | void _TOD_Get_uptime( |
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37 | Timestamp_Control *uptime |
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38 | ) |
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39 | { |
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40 | ISR_Level level; |
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41 | Timestamp_Control offset; |
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42 | Timestamp_Control up; |
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43 | long nanoseconds; |
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44 | |
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45 | /* assume time checked for NULL by caller */ |
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46 | |
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47 | /* _TOD_Uptime is in native timestamp format */ |
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48 | _ISR_Disable( level ); |
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49 | up = _TOD_Uptime; |
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50 | nanoseconds = (*_Watchdog_Nanoseconds_since_tick_handler)(); |
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51 | _ISR_Enable( level ); |
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52 | |
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53 | _Timestamp_Set( &offset, 0, nanoseconds ); |
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54 | _Timestamp_Add_to( &up, &offset ); |
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55 | *uptime = up; |
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56 | } |
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