4.115
Last change
on this file since 6279149 was
c499856,
checked in by Chris Johns <chrisj@…>, on 03/20/14 at 21:10:47
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Change all references of rtems.com to rtems.org.
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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 | * This routine polls to see if a packet has arrived. If one |
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3 | * has it informs the executive. It uses a Classic API Timer |
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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.org/license/LICENSE. |
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11 | */ |
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12 | |
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13 | #include <rtems.h> |
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14 | #include <rtems/score/sysstate.h> |
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15 | #include <rtems/libio.h> |
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16 | |
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17 | #include <assert.h> |
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18 | |
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19 | #include "shm_driver.h" |
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20 | |
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21 | rtems_timer_service_routine Shm_Poll_TSR( |
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22 | rtems_id id, |
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23 | void *ignored_address |
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24 | ) |
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25 | { |
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26 | uint32_t tmpfront; |
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27 | |
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28 | /* |
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29 | * This should NEVER happen but just in case. |
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30 | */ |
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31 | if (!_System_state_Is_up(_System_state_Get())) |
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32 | return; |
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33 | |
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34 | tmpfront = Shm_Local_receive_queue->front; |
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35 | if ( Shm_Convert(tmpfront) != Shm_Locked_queue_End_of_list ) { |
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36 | rtems_multiprocessing_announce(); |
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37 | Shm_Interrupt_count++; |
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38 | } |
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39 | |
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40 | (void) rtems_timer_reset( id ); |
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41 | } |
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42 | |
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43 | void Shm_install_timer(void) |
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44 | { |
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45 | rtems_id id; |
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46 | rtems_status_code status; |
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47 | |
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48 | status = rtems_timer_create( rtems_build_name( 'S', 'H', 'P', 'L' ), &id ); |
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49 | assert( !status ); |
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50 | |
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51 | status = rtems_timer_fire_after( id, 1, Shm_Poll_TSR, NULL ); |
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52 | assert( !status ); |
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53 | } |
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54 | |
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