67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
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#define _SYSTEM 1
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <minix/config.h>
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#include <minix/const.h>
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#include <minix/ds.h>
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#include <minix/endpoint.h>
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#include <minix/keymap.h>
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#include <minix/minlib.h>
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#include <minix/type.h>
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#include <minix/ipc.h>
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#include <minix/sysutil.h>
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#include <minix/syslib.h>
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#include <errno.h>
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#include <string.h>
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#include <env.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include "proto.h"
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#include "util.h"
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#define SENDSLOTS _NR_PROCS
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PRIVATE asynmsg_t msgtable[SENDSLOTS];
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PRIVATE size_t msgtable_n= SENDSLOTS;
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PUBLIC int asynsend(dst, mp)
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endpoint_t dst;
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message *mp;
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{
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int i;
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unsigned flags;
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/* Find slot in table */
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for (i= 0; i<msgtable_n; i++)
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{
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flags= msgtable[i].flags;
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if ((flags & (AMF_VALID|AMF_DONE)) == (AMF_VALID|AMF_DONE))
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{
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if (msgtable[i].result != OK)
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{
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printf(
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"VM: asynsend: found completed entry %d with error %d\n",
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i, msgtable[i].result);
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}
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break;
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}
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if (flags == AMF_EMPTY)
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break;
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}
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if (i >= msgtable_n)
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vm_panic("asynsend: should resize table", i);
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msgtable[i].dst= dst;
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msgtable[i].msg= *mp;
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msgtable[i].flags= AMF_VALID; /* Has to be last. The kernel
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* scans this table while we are
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* sleeping.
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*/
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/* Tell the kernel to rescan the table */
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return senda(msgtable, msgtable_n);
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}
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