[ac7d5ef0] | 1 | /* Message_queue_task |
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| 2 | * |
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| 3 | * This task continuously sends messages to and receives messages from |
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| 4 | * a global message queue. The message buffer is viewed as an array |
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| 5 | * of two sixty-four bit counts which are incremented when a message is |
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| 6 | * received. |
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| 7 | * |
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| 8 | * Input parameters: |
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| 9 | * argument - task argument |
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| 10 | * |
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| 11 | * Output parameters: NONE |
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| 12 | * |
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| 13 | * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. |
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| 14 | * On-Line Applications Research Corporation (OAR). |
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| 15 | * All rights assigned to U.S. Government, 1994. |
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| 16 | * |
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| 17 | * This material may be reproduced by or for the U.S. Government pursuant |
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| 18 | * to the copyright license under the clause at DFARS 252.227-7013. This |
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| 19 | * notice must appear in all copies of this file and its derivatives. |
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| 20 | * |
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[3235ad9] | 21 | * $Id$ |
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[ac7d5ef0] | 22 | */ |
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| 23 | |
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| 24 | #include "system.h" |
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| 25 | |
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| 26 | rtems_task Message_queue_task( |
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| 27 | rtems_task_argument index |
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| 28 | ) |
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| 29 | { |
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| 30 | rtems_status_code status; |
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| 31 | rtems_unsigned32 count; |
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| 32 | rtems_unsigned32 yield_count; |
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| 33 | rtems_unsigned32 *buffer_count; |
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| 34 | rtems_unsigned32 *overflow_count; |
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[4b374f36] | 35 | rtems_unsigned32 size; |
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[ac7d5ef0] | 36 | |
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| 37 | Msg_buffer[ index ][0] = 0; |
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| 38 | Msg_buffer[ index ][1] = 0; |
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| 39 | Msg_buffer[ index ][2] = 0; |
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| 40 | Msg_buffer[ index ][3] = 0; |
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| 41 | |
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| 42 | puts( "Getting ID of msg queue" ); |
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| 43 | while ( FOREVER ) { |
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| 44 | status = rtems_message_queue_ident( |
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| 45 | Queue_name[ 1 ], |
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| 46 | RTEMS_SEARCH_ALL_NODES, |
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| 47 | &Queue_id[ 1 ] |
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| 48 | ); |
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| 49 | if ( status == RTEMS_SUCCESSFUL ) |
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| 50 | break; |
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| 51 | puts( "rtems_message_queue_ident FAILED!!" ); |
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[2122a0b] | 52 | rtems_task_wake_after(2); |
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[ac7d5ef0] | 53 | } |
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| 54 | |
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| 55 | if ( Multiprocessing_configuration.node == 1 ) { |
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| 56 | status = rtems_message_queue_send( |
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| 57 | Queue_id[ 1 ], |
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[4b374f36] | 58 | (long (*)[4])Msg_buffer[ index ], |
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| 59 | 16 |
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[ac7d5ef0] | 60 | ); |
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| 61 | directive_failed( status, "rtems_message_queue_send" ); |
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| 62 | overflow_count = &Msg_buffer[ index ][0]; |
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| 63 | buffer_count = &Msg_buffer[ index ][1]; |
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| 64 | } else { |
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| 65 | overflow_count = &Msg_buffer[ index ][2]; |
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| 66 | buffer_count = &Msg_buffer[ index ][3]; |
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| 67 | } |
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| 68 | |
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| 69 | while ( Stop_Test == FALSE ) { |
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| 70 | yield_count = 100; |
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| 71 | |
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| 72 | for ( count=MESSAGE_DOT_COUNT ; Stop_Test == FALSE && count ; count-- ) { |
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| 73 | status = rtems_message_queue_receive( |
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| 74 | Queue_id[ 1 ], |
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| 75 | (long (*)[4])Msg_buffer[ index ], |
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[4b374f36] | 76 | &size, |
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[ac7d5ef0] | 77 | RTEMS_DEFAULT_OPTIONS, |
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| 78 | RTEMS_NO_TIMEOUT |
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| 79 | ); |
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| 80 | directive_failed( status, "rtems_message_queue_receive" ); |
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| 81 | |
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| 82 | if ( *buffer_count == (rtems_unsigned32)0xffffffff ) { |
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| 83 | *buffer_count = 0; |
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| 84 | *overflow_count += 1; |
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| 85 | } else |
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| 86 | *buffer_count += 1; |
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| 87 | |
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| 88 | status = rtems_message_queue_send( |
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| 89 | Queue_id[ 1 ], |
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[4b374f36] | 90 | (long (*)[4])Msg_buffer[ index ], |
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| 91 | 16 |
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[ac7d5ef0] | 92 | ); |
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| 93 | directive_failed( status, "rtems_message_queue_send" ); |
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| 94 | |
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| 95 | if (Stop_Test == FALSE) |
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| 96 | if ( Multiprocessing_configuration.node == 1 && --yield_count == 0 ) { |
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| 97 | status = rtems_task_wake_after( RTEMS_YIELD_PROCESSOR ); |
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| 98 | directive_failed( status, "rtems_task_wake_after" ); |
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| 99 | |
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| 100 | yield_count = 100; |
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| 101 | } |
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| 102 | } |
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| 103 | put_dot( 'm' ); |
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| 104 | } |
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| 105 | |
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| 106 | Exit_test(); |
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| 107 | } |
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