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Mig_Evict.c
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C/C++ Source or Header
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1990-06-22
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/*
* Mig_Evict.c --
*
* Force the daemon on the local host to evict foreign processes.
* This might be useful if one is remotely logged into a host
* and wishes to evict processes, since automatic migration is done
* when the user is physically present to interact with the host.
*
* Copyright 1990 Regents of the University of California
* Permission to use, copy, modify, and distribute this
* software and its documentation for any purpose and without
* fee is hereby granted, provided that the above copyright
* notice appear in all copies. The University of California
* makes no representations about the suitability of this
* software for any purpose. It is provided "as is" without
* express or implied warranty.
*/
#ifndef lint
static char rcsid[] = "$Header: /sprite/src/lib/c/mig/RCS/Mig_Evict.c,v 2.1 90/06/22 14:58:20 douglis Exp $ SPRITE (Berkeley)";
#endif /* not lint */
#include <sprite.h>
#include <stdio.h>
#include <mig.h>
#include <errno.h>
/*
*----------------------------------------------------------------------
*
* Mig_Evict --
*
* Tell the local daemon to evict foreign processes.
*
* Results:
* The number of processes evicted is returned if the call is successful,
* or -1 is returned on error, with errno indicating the error.
*
* Side effects:
* Does ioctl to server.
*
*----------------------------------------------------------------------
*/
int
Mig_Evict()
{
int status;
int numHosts;
if (mig_LocalPdev < 0) {
if (MigOpenPdev(FALSE) < 0) {
return(-1);
}
}
if (MigSetAlarm() < 0) {
fprintf(stderr,
"Error setting alarm for contact with migd.\n");
return(-1);
}
status = Fs_IOControl(mig_LocalPdev, IOC_MIG_EVICT,
0, (char *) NULL,
sizeof(int), (char *) &numHosts);
if (MigClearAlarm() < 0) {
fprintf(stderr,
"Error clearing alarm for contact with migd.\n");
}
if (status != SUCCESS) {
fprintf(stderr,
"Mig_Evict: error during ioctl to local daemon: %s\n",
Stat_GetMsg(status));
errno = Compat_MapCode(status);
return(-1);
}
return(numHosts);
}