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| 1 | /*
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| 2 | inet/mq.c
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| 3 |
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| 4 | Created: Jan 3, 1992 by Philip Homburg
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| 5 |
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| 6 | Copyright 1995 Philip Homburg
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| 7 | */
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| 8 |
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| 9 | #include "inet.h"
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| 10 | #include "mq.h"
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| 11 | #include "generic/assert.h"
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| 12 |
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| 13 | THIS_FILE
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| 14 |
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| 15 | #define MQ_SIZE 128
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| 16 |
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| 17 | PRIVATE mq_t mq_list[MQ_SIZE];
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| 18 | PRIVATE mq_t *mq_freelist;
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| 19 |
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| 20 | void mq_init()
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| 21 | {
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| 22 | int i;
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| 23 |
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| 24 | mq_freelist= NULL;
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| 25 | for (i= 0; i<MQ_SIZE; i++)
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| 26 | {
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| 27 | mq_list[i].mq_next= mq_freelist;
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| 28 | mq_freelist= &mq_list[i];
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| 29 | mq_list[i].mq_allocated= 0;
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| 30 | }
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| 31 | }
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| 32 |
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| 33 | mq_t *mq_get()
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| 34 | {
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| 35 | mq_t *mq;
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| 36 |
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| 37 | mq= mq_freelist;
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| 38 | assert(mq != NULL);
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| 39 |
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| 40 | mq_freelist= mq->mq_next;
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| 41 | mq->mq_next= NULL;
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| 42 | assert(mq->mq_allocated == 0);
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| 43 | mq->mq_allocated= 1;
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| 44 | return mq;
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| 45 | }
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| 46 |
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| 47 | void mq_free(mq)
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| 48 | mq_t *mq;
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| 49 | {
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| 50 | mq->mq_next= mq_freelist;
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| 51 | mq_freelist= mq;
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| 52 | assert(mq->mq_allocated == 1);
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| 53 | mq->mq_allocated= 0;
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| 54 | }
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| 55 |
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| 56 | /*
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| 57 | * $PchId: mq.c,v 1.7 1998/10/23 20:10:47 philip Exp $
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| 58 | */
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