1 | /* |
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2 | * Time of Day (TOD) Handler -- Set Time |
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3 | */ |
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4 | |
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5 | /* COPYRIGHT (c) 1989-2007. |
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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/object.h> |
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21 | #include <rtems/score/thread.h> |
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22 | #include <rtems/score/timestamp.h> |
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23 | #include <rtems/score/tod.h> |
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24 | #include <rtems/score/watchdog.h> |
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25 | |
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26 | /*PAGE |
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27 | * |
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28 | * _TOD_Set |
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29 | * |
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30 | * This rountine sets the current date and time with the specified |
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31 | * new date and time structure. |
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32 | * |
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33 | * Input parameters: |
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34 | * time - pointer to the time and date structure |
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35 | * |
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36 | * Output parameters: NONE |
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37 | */ |
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38 | |
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39 | void _TOD_Set( |
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40 | const struct timespec *time |
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41 | ) |
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42 | { |
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43 | long seconds; |
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44 | |
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45 | _Thread_Disable_dispatch(); |
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46 | _TOD_Deactivate(); |
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47 | |
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48 | seconds = _TOD_Seconds_since_epoch(); |
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49 | |
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50 | if ( time->tv_sec < seconds ) |
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51 | _Watchdog_Adjust_seconds( WATCHDOG_BACKWARD, seconds - time->tv_sec ); |
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52 | else |
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53 | _Watchdog_Adjust_seconds( WATCHDOG_FORWARD, time->tv_sec - seconds ); |
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54 | |
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55 | /* POSIX format TOD (timespec) */ |
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56 | _Timestamp_Set( &_TOD_Now, time->tv_sec, time->tv_nsec ); |
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57 | _TOD_Is_set = true; |
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58 | |
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59 | _TOD_Activate(); |
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60 | |
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61 | _Thread_Enable_dispatch(); |
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62 | } |
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