4.104.114.84.95
Last change
on this file since 48bfd992 was
48bfd992,
checked in by Joel Sherrill <joel.sherrill@…>, on 11/30/99 at 19:58:02
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Renamed shm.h to shm_driver.h to avoid conflicts with POSIX shm.h.
Renamed file shmsupp/intr.c in some BSPs to shmsupp/cause_intr.c to
avoid conflict with rtems/src/intr.c (Classic API Interrupt Manager).
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-
Property mode set to
100644
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File size:
1.0 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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[08311cc3] | 11 | * COPYRIGHT (c) 1989-1999. |
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[ac7d5ef0] | 12 | * On-Line Applications Research Corporation (OAR). |
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| 13 | * |
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[98e4ebf5] | 14 | * The license and distribution terms for this file may be |
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| 15 | * found in the file LICENSE in this distribution or at |
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[03f2154e] | 16 | * http://www.OARcorp.com/rtems/license.html. |
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[ac7d5ef0] | 17 | * |
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| 18 | * $Id$ |
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| 19 | */ |
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| 20 | |
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| 21 | #include <rtems.h> |
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[48bfd992] | 22 | #include "shm_driver.h" |
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[ac7d5ef0] | 23 | |
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| 24 | void Shm_Locked_queue_Add( |
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| 25 | Shm_Locked_queue_Control *lq_cb, |
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| 26 | Shm_Envelope_control *ecb |
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| 27 | ) |
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| 28 | { |
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| 29 | rtems_unsigned32 index; |
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| 30 | |
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| 31 | ecb->next = Shm_Locked_queue_End_of_list; |
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| 32 | ecb->queue = lq_cb->owner; |
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| 33 | index = ecb->index; |
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| 34 | |
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| 35 | Shm_Lock( lq_cb ); |
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| 36 | if ( Shm_Convert(lq_cb->front) != Shm_Locked_queue_End_of_list ) |
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| 37 | Shm_Envelopes[ Shm_Convert(lq_cb->rear) ].next = index; |
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| 38 | else |
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| 39 | lq_cb->front = index; |
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| 40 | lq_cb->rear = index; |
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| 41 | Shm_Unlock( lq_cb ); |
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| 42 | } |
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