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/*
* Copyright 1998-1999, University of Notre Dame.
* Authors: Brian W. Barrett, Arun F. Rodrigues, Jeffrey M. Squyres,
* and Andrew Lumsdaine
*
* This file is part of XMPI
*
* You should have received a copy of the License Agreement for XMPI
* along with the software; see the file LICENSE. If not, contact
* Office of Research, University of Notre Dame, Notre Dame, IN 46556.
*
* Permission to modify the code and to distribute modified code is
* granted, provided the text of this NOTICE is retained, a notice that
* the code was modified is included with the above COPYRIGHT NOTICE and
* with the COPYRIGHT NOTICE in the LICENSE file, and that the LICENSE
* file is distributed with the modified code.
*
* LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.
* By way of example, but not limitation, Licensor MAKES NO
* REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
* PARTICULAR PURPOSE OR THAT THE USE OF THE LICENSED SOFTWARE COMPONENTS
* OR DOCUMENTATION WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS, TRADEMARKS
* OR OTHER RIGHTS.
*
* Additional copyrights may follow.
*
* $Id: mpitr_dtype.c,v 1.3 1999/11/08 06:20:37 bbarrett Exp $
*
* Function: - MPI datatype trace access functions
*/
#include <stdlib.h>
#include <string.h>
#include <mpitrace.h>
#include <portable.h>
#include <terror.h>
#include <typical.h>
#include <t_types.h>
/*
* global functions
*/
int mpitr_dtypeget();
/*
* external functions
*/
extern int lam_rtrget();
/*
* mpitr_dtypeget
*
* Function: - get datatype trace
* Accepts: - process node
* - process pid
* - datatype label
* - ptr trace datatype buffer (returned value)
* Returns: - 0 or LAMERROR
*/
int
mpitr_dtypeget(nodeid, pid, dtlabel, ptrdtype)
int4 nodeid;
int4 pid;
int4 dtlabel;
char **ptrdtype;
{
int trlen; /* trace buffer length */
char *p; /* favourite pointer */
char *trbuf; /* datatype trace buffer */
struct trdtype *ptrdt; /* ptr into datatype trace */
*ptrdtype = 0;
if (dtlabel < 0) {
errno = EINVAL;
return(LAMERROR);
}
if (dtlabel <= TRDTMAX) {
/*
* Allocate datatype description.
*/
trlen = 2 * sizeof(struct trdtype);
*ptrdtype = malloc((unsigned) trlen);
if (*ptrdtype == 0) return(LAMERROR);
ptrdt = (struct trdtype *) *ptrdtype;
ptrdt->trd_dtype = dtlabel;
ptrdt->trd_length = trlen;
ptrdt++;
ptrdt->trd_dtype = dtlabel;
ptrdt->trd_count = 1;
return(0);
}
/*
* It's a constructed datatype, get its trace representation.
*/
trlen = lam_rtrget(nodeid, (int4) TRDTYPE, pid, &trbuf);
if (trlen < 0) return(LAMERROR);
/*
* Locate the datatype buffer with given number.
*/
*ptrdtype = 0;
p = trbuf;
while (trlen > 0) {
ptrdt = (struct trdtype *) (p + sizeof(struct trsrc));
mttoli4((int4 *) ptrdt, sizeof(struct trdtype) / sizeof(int4));
if (ptrdt->trd_dtype == dtlabel) {
*ptrdtype = (char *) ptrdt;
break;
}
trlen -= (ptrdt->trd_length + sizeof(struct trsrc));
p += (ptrdt->trd_length + sizeof(struct trsrc));
}
if (*ptrdtype == 0) {
free((char *) trbuf);
errno = EINVAL;
return(LAMERROR);
}
/*
* Copy datatype record.
*/
*ptrdtype = malloc((unsigned) (ptrdt->trd_length));
if (*ptrdtype == 0) {
free((char *) trbuf);
return(LAMERROR);
}
mttoli4((int4 *) (((char *) ptrdt) + sizeof(struct trdtype)),
(ptrdt->trd_length - sizeof(struct trdtype)) / sizeof(int4));
memcpy(*ptrdtype, (char *) ptrdt, ptrdt->trd_length);
free((char *) trbuf);
return(0);
}
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