forked from Imagelibrary/rtems
sp13: Document message buffer usage and adjust configuration
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@@ -66,13 +66,34 @@ TEST_EXTERN rtems_name Queue_name[ 4 ]; /* array of queue names */
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#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
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/*
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* First three created in init.c, last created in task1.c.
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* Created in init.c:
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* Q1 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) (1600)
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* Q2 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 10, MESSAGE_SIZE ) (160)
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* Q3 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) (1600)
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*
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* Q1 and Q2 deleted in task1.c.
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*
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* Q1 recreated in task1.c:
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* Q1 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, 20 ) (2000)
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*
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* Q1 deleted again in task1.c.
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*
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* Q1 repeatedly created and deleted for 2 messages of 1-1030 bytes
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* in length. Account for peak usage:
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* Q1 - CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 2, 1030 ) (2060)
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*
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* Because each message requires memory for the message plus two
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* pointers to place the buffer on lists, it is easier to just
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* allocate memory for all the message queues. But we can safely
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* ignore Q2 and the last instance of Q1 since enough memory is
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* free when the third instance of Q1 is created.
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*/
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#define CONFIGURE_MESSAGE_BUFFER_MEMORY \
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CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) + \
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CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 10, MESSAGE_SIZE ) + \
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CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) + \
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CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, 20 )
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/* Q1 */ CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) + \
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/* Q2 */ /* CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 10, MESSAGE_SIZE ) + */ \
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/* Q3 */ CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, MESSAGE_SIZE ) + \
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/* Q1 */ CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 100, 20 ) + \
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/* Q1 */ /* CONFIGURE_MESSAGE_BUFFERS_FOR_QUEUE( 2, 1030 ) */
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#define CONFIGURE_EXTRA_TASK_STACKS (3 * RTEMS_MINIMUM_STACK_SIZE)
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