b01aff70d2
libdriver. at_wini now queues messages it can't handle it receives when waiting for an interrupt. this way it can do receive(ANY) and timeouts should be working again (were broken for VFS, as with the advent of VFS, at_wini could get requests from a filesystem while it was waiting for an interrupt - as a hack, the receive() was changed to receive(HARDWARE)). Added mq.c to libdriver, and made libdriver an actual library that drivers link with -L../libdriver -ldriver. (So adding files, if necessary, is easier next time.)
62 lines
883 B
C
62 lines
883 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 <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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