4.104.114.84.95
Last change
on this file since 03f2154e was
03f2154e,
checked in by Joel Sherrill <joel.sherrill@…>, on 04/22/97 at 17:20:27
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headers updated to reflect new style copyright notice as part
of switching to the modified GNU GPL.
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-
Property mode set to
100644
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File size:
1.1 KB
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Rev | Line | |
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[ac7d5ef0] | 1 | /* void Shm_Locked_queue_Add( lq_cb, ecb ) |
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| 2 | * |
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| 3 | * This routine adds an envelope control block to a shared memory queue. |
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| 4 | * |
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| 5 | * Input parameters: |
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| 6 | * lq_cb - pointer to a locked queue control block |
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| 7 | * ecb - pointer to an envelope control block |
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| 8 | * |
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| 9 | * Output parameters: NONE |
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| 10 | * |
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[03f2154e] | 11 | * COPYRIGHT (c) 1989-1997. |
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[ac7d5ef0] | 12 | * On-Line Applications Research Corporation (OAR). |
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[03f2154e] | 13 | * Copyright assigned to U.S. Government, 1994. |
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[ac7d5ef0] | 14 | * |
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[03f2154e] | 15 | * The license and distribution terms for this file may in |
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| 16 | * the file LICENSE in this distribution or at |
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| 17 | * http://www.OARcorp.com/rtems/license.html. |
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[ac7d5ef0] | 18 | * |
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| 19 | * $Id$ |
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| 20 | */ |
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| 21 | |
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| 22 | #include <rtems.h> |
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| 23 | #include "shm.h" |
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| 24 | |
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| 25 | void Shm_Locked_queue_Add( |
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| 26 | Shm_Locked_queue_Control *lq_cb, |
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| 27 | Shm_Envelope_control *ecb |
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| 28 | ) |
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| 29 | { |
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| 30 | rtems_unsigned32 index; |
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| 31 | |
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| 32 | ecb->next = Shm_Locked_queue_End_of_list; |
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| 33 | ecb->queue = lq_cb->owner; |
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| 34 | index = ecb->index; |
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| 35 | |
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| 36 | Shm_Lock( lq_cb ); |
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| 37 | if ( Shm_Convert(lq_cb->front) != Shm_Locked_queue_End_of_list ) |
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| 38 | Shm_Envelopes[ Shm_Convert(lq_cb->rear) ].next = index; |
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| 39 | else |
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| 40 | lq_cb->front = index; |
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| 41 | lq_cb->rear = index; |
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| 42 | Shm_Unlock( lq_cb ); |
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| 43 | } |
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