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static char rcsid[] =
"$Id: rme.c,v 1.4 1997/07/09 13:25:17 pvmsrc Exp $";
/*
* PVM version 3.4: Parallel Virtual Machine System
* University of Tennessee, Knoxville TN.
* Oak Ridge National Laboratory, Oak Ridge TN.
* Emory University, Atlanta GA.
* Authors: J. J. Dongarra, G. E. Fagg, M. Fischer
* G. A. Geist, J. A. Kohl, R. J. Manchek, P. Mucci,
* P. M. Papadopoulos, S. L. Scott, and V. S. Sunderam
* (C) 1997 All Rights Reserved
*
* NOTICE
*
* 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 and
* that both the copyright notice and this permission notice appear in
* supporting documentation.
*
* Neither the Institutions (Emory University, Oak Ridge National
* Laboratory, and University of Tennessee) nor the Authors make any
* representations about the suitability of this software for any
* purpose. This software is provided ``as is'' without express or
* implied warranty.
*
* PVM version 3 was funded in part by the U.S. Department of Energy,
* the National Science Foundation and the State of Tennessee.
*/
/*
* Filename: rme.c ( remove mailbox entry )
*
* This program will seek out a "well known" service from a mailbox
* and then remove it.
*
* Don't bother with flags here as they are not used by pvm_delinfo()
*
* usage: rme [service_name] [index_nbr]
*
* Note: If a task is waiting for someone to communicate via mailbox
* information will be left stranded after this program removes
* the associated entry from the mailbox database.
*
* files used: rme.c taskf.c
*/
#include <stdio.h>
#ifndef WIN32
#include <unistd.h> /* for gethostname */
#else
#include "pvmwin.h"
#endif
#include "pvm3.h"
main( argc, argv )
int argc;
char *argv[];
{
char *me = "rme";
char machine[25];
int mytid;
int info;
int index; /* index of the service seeking */
char *service_name; /* name of the service seeking */
/* display_incomming_parameters( me, argc, argv ); */
printf( "\n" );
if ( argc != 3 ) {
printf( "\nusage: task_end [service_name] [index_nbr]\n" );
exit( -1 );
}
index = atoi( argv[2] );
service_name = argv[1];
printf( "Looking for service name <%s> with index number [%d].\n",
service_name, index );
if ( ( mytid = pvm_mytid() ) == PvmSysErr ) {
printf( "\nPVM not up!\n" );
exit( -1 );
}
gethostname( machine, 25 );
printf( "%s: t%x on machine <%s> with context %d.\n",
me, mytid, machine, pvm_getcontext() );
/*
* attempt to delete the ( service_name, index ) pair from the
* mailbox
*/
if ( (info = pvm_delinfo( service_name, index, PvmMboxDefault ))
< 0 ) {
/*
* did not find mailbox - tell user why and exit...
*/
switch ( info )
{
case PvmNotFound:
printf(
"\n%s: no service running for <%s> index <%d>\n",
me, service_name, index );
break;
case PvmBadParam:
printf( "\n%s: Invalid argument to pvm_recvinfo().\n",
me );
break;
case PvmNoSuchBuf:
printf( "\n%s: Message buffer id does not exist.\n",
me );
break;
case PvmDenied:
printf(
"\n%s: Key locked by another task, can't delete.\n",
me );
break;
default:
lpvmerr( "\n%s: rme.c: error %d", me, info );
break;
} /* end_switch */
exit( -1 );
} /* end_if */
pvm_exit();
exit( 0 );
}
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