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static char rcsid[] =
"$Id: taskf.c,v 1.5 2009/01/23 01:12:57 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: taskf.c
*
* contains functions used in mailbox example codes
*
* task0.c task1.c task_end.c
* lmbi.c gmbi.c rme.c
* others ???
*
*********************************************************************/
#include <stdio.h>
#ifdef HASSTDLIB
#include <stdlib.h>
#endif
#ifdef SYSVSTR
#include <string.h>
#else
#include <strings.h>
#endif
#include "pvm3.h"
/**********************************************************************
* Function: display_incomming_parameters
*
* displays the command line parameters from program
*********************************************************************/
void
display_incomming_parameters( who, argc, argv )
char *who;
int argc;
char *argv[];
{
char *me = "display_incomming_parameters";
int i;
printf( "\n%s: %d incoming parameters to main.\n", who, argc );
for ( i=0 ; i < argc ; i++ )
printf( "%s: argv[%d] = <%s>\n", who, i, argv[i] );
} /* display_incomming_parameters */
/**********************************************************************
* Function: get_flagstring
*
* flags: Incoming integer that represents the sum of Mbox flags.
*
* returns: Outgoing string of flags set.
* may have: PvmMboxDefault d = 0
* PvmMboxPersistent p = 1
* PvmMboxMultiInstance m = 2
* PvmMboxOverWritable o = 4
* PvmMboxFirstAvail f = 8
* PvmMboxReadAndDelete r = 16
*
* returns a pointer to a string containing flags set
* returns NULL pointer on error
*********************************************************************/
char *
get_flagstring( flags )
int flags;
{
char *me = "get_flagstring";
int size = 0;
char *flagstring = ( char * ) NULL;
/*
* string space to return
*/
if ( (flagstring = (char *) calloc( 255, sizeof(char) )) == NULL ) {
printf( "\n%s: failed on calloc.\n", me );
return( ( char * ) NULL );
}
/* set to null so that empty string test works */
flagstring[0] = '\0';
if ( flags == PvmMboxDefault ) {
strcat( flagstring, "PvmMboxDefault " );
}
else {
if ( flags >= PvmMboxReadAndDelete ) {
strcat( flagstring, "PvmMboxReadAndDelete " );
flags -= PvmMboxReadAndDelete;
}
if ( flags >= PvmMboxFirstAvail ) {
strcat( flagstring, "PvmMboxFirstAvail " );
flags -= PvmMboxFirstAvail;
}
if ( flags >= PvmMboxOverWritable ) {
strcat( flagstring, "PvmMboxOverWritable " );
flags -= PvmMboxOverWritable;
}
if ( flags >= PvmMboxMultiInstance ) {
strcat( flagstring, "PvmMboxMultiInstance " );
flags -= PvmMboxMultiInstance;
}
if ( flags >= PvmMboxPersistent ) {
strcat( flagstring, "PvmMboxPersistent " );
flags -= PvmMboxPersistent;
}
}
return( flagstring );
} /* get_flagstring */
/**********************************************************************
* Function: set_flags
*
* flagsin: Incoming string containing characters representing the
* Mbox switches set.
* An empty string is assumed to be "d" for PvmMboxDefault.
* valid chars are ( d p m o f r ) in any order.
* Any bogus characters are ignored...
*
* flagstring: Outgoing string of flags set.
* may have: PvmMboxDefault d = 0
* PvmMboxPersistent p = 1
* PvmMboxMultiInstance m = 2
* PvmMboxOverWritable o = 4
* PvmMboxFirstAvail f = 8
* PvmMboxReadAndDelete r = 16
*
* returns a positive integer representing addition of all set flags.
* returns a negative integer to indicate an error condition
*********************************************************************/
int
set_flags( flagsin, flagstring )
char *flagsin;
char **flagstring;
{
char *me = "set_flags";
int size = 0;
int flags = PvmMboxDefault;
/*
* check for existance of flag character and
* set results accordingly
*/
/* ambiguious but do anyway... */
if ( strchr( flagsin, 'd' ) != NULL ) {
flags |= PvmMboxDefault;
}
if ( strchr( flagsin, 'r' ) != NULL ) {
flags |= PvmMboxReadAndDelete;
}
if ( strchr( flagsin, 'f' ) != NULL ) {
flags |= PvmMboxFirstAvail;
}
if ( strchr( flagsin, 'o' ) != NULL ) {
flags |= PvmMboxOverWritable;
}
if ( strchr( flagsin, 'm' ) != NULL ) {
flags |= PvmMboxMultiInstance;
}
if ( strchr( flagsin, 'p' ) != NULL ) {
flags |= PvmMboxPersistent;
}
/*
* get flags.
* flags other than those expected "drfomp" will return as
* PvmMboxDefault
*/
if ( (*flagstring = get_flagstring( flags )) == NULL ) return( -1 );
return( flags );
} /* set_flags */
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