5
Last change
on this file since 2afb22b was
e41308ea,
checked in by Sebastian Huber <sebastian.huber@…>, on 08/22/16 at 08:58:34
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score: Introduce Thread_queue_Lock_context
Introduce Thread_queue_Lock_context to contain the context necessary for
thread queue lock and thread wait lock acquire/release operations to
reduce the Thread_Control size.
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-
Property mode set to
100644
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File size:
1.5 KB
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1 | /** |
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2 | * @file |
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3 | * |
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4 | * @brief Broadcast a Message to the Message Queue |
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5 | * @ingroup ScoreMessageQueue |
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6 | */ |
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7 | |
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8 | /* |
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9 | * COPYRIGHT (c) 1989-2008. |
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10 | * On-Line Applications Research Corporation (OAR). |
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11 | * |
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12 | * The license and distribution terms for this file may be |
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13 | * found in the file LICENSE in this distribution or at |
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14 | * http://www.rtems.org/license/LICENSE. |
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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/score/coremsgimpl.h> |
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22 | #include <rtems/score/objectimpl.h> |
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23 | |
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24 | Status_Control _CORE_message_queue_Broadcast( |
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25 | CORE_message_queue_Control *the_message_queue, |
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26 | const void *buffer, |
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27 | size_t size, |
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28 | uint32_t *count, |
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29 | Thread_queue_Context *queue_context |
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30 | ) |
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31 | { |
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32 | Thread_Control *the_thread; |
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33 | uint32_t number_broadcasted; |
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34 | |
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35 | if ( size > the_message_queue->maximum_message_size ) { |
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36 | _ISR_lock_ISR_enable( &queue_context->Lock_context.Lock_context ); |
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37 | return STATUS_MESSAGE_INVALID_SIZE; |
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38 | } |
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39 | |
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40 | number_broadcasted = 0; |
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41 | |
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42 | _CORE_message_queue_Acquire_critical( the_message_queue, queue_context ); |
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43 | |
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44 | while ( |
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45 | ( the_thread = |
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46 | _CORE_message_queue_Dequeue_receiver( |
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47 | the_message_queue, |
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48 | buffer, |
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49 | size, |
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50 | 0, |
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51 | queue_context |
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52 | ) |
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53 | ) |
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54 | ) { |
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55 | number_broadcasted += 1; |
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56 | |
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57 | _CORE_message_queue_Acquire( the_message_queue, queue_context ); |
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58 | } |
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59 | |
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60 | _CORE_message_queue_Release( the_message_queue, queue_context ); |
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61 | |
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62 | *count = number_broadcasted; |
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63 | return STATUS_SUCCESSFUL; |
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64 | } |
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