62 lines
889 B
C
62 lines
889 B
C
/*
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inet/mq.c
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Created: Jan 3, 1992 by Philip Homburg
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Copyright 1995 Philip Homburg
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*/
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#include <minix/ansi.h>
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#include <assert.h>
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#include <minix/config.h>
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#include <minix/const.h>
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#include <minix/type.h>
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#include <minix/ipc.h>
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#include <minix/mq.h>
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#define MQ_SIZE 128
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PRIVATE mq_t mq_list[MQ_SIZE];
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PRIVATE mq_t *mq_freelist;
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void mq_init()
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{
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int i;
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mq_freelist= NULL;
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for (i= 0; i<MQ_SIZE; i++)
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{
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mq_list[i].mq_next= mq_freelist;
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mq_freelist= &mq_list[i];
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mq_list[i].mq_allocated= 0;
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}
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}
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mq_t *mq_get()
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{
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mq_t *mq;
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mq= mq_freelist;
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assert(mq != NULL);
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mq_freelist= mq->mq_next;
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mq->mq_next= NULL;
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assert(mq->mq_allocated == 0);
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mq->mq_allocated= 1;
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return mq;
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}
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void mq_free(mq)
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mq_t *mq;
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{
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mq->mq_next= mq_freelist;
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mq_freelist= mq;
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assert(mq->mq_allocated == 1);
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mq->mq_allocated= 0;
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}
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/*
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* $PchId: mq.c,v 1.7 1998/10/23 20:10:47 philip Exp $
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*/
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