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openmpi/ompi/mpi/c/waitall.c
Jeff Squyres 1e92bc0fd1 Per request from Jeremiah Willcock, support the array-based MPI_TEST
and MPI_WAIT functions with a count of 0 (i.e., just return SUCCESS
and don't do anything).

This commit was SVN r26138.
2012-03-14 14:36:04 +00:00

88 строки
2.4 KiB
C

/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2006 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2008 High Performance Computing Center Stuttgart,
* University of Stuttgart. All rights reserved.
* Copyright (c) 2004-2005 The Regents of the University of California.
* All rights reserved.
* Copyright (c) 2006 Cisco Systems, Inc. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/runtime/params.h"
#include "ompi/communicator/communicator.h"
#include "ompi/errhandler/errhandler.h"
#include "ompi/request/request.h"
#include "ompi/memchecker.h"
#if OPAL_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Waitall = PMPI_Waitall
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Waitall";
int MPI_Waitall(int count, MPI_Request *requests, MPI_Status *statuses)
{
MEMCHECKER(
int j;
for (j = 0; j < count; j++){
memchecker_request(&requests[j]);
}
);
if ( MPI_PARAM_CHECK ) {
int i, rc = MPI_SUCCESS;
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if( (NULL == requests) && (0 != count) ) {
rc = MPI_ERR_REQUEST;
} else {
for (i = 0; i < count; i++) {
if (NULL == requests[i]) {
rc = MPI_ERR_REQUEST;
break;
}
}
}
if (count < 0) {
rc = MPI_ERR_ARG;
}
OMPI_ERRHANDLER_CHECK(rc, MPI_COMM_WORLD, rc, FUNC_NAME);
}
if (OPAL_UNLIKELY(0 == count)) {
return MPI_SUCCESS;
}
OPAL_CR_ENTER_LIBRARY();
if (OMPI_SUCCESS == ompi_request_wait_all(count, requests, statuses)) {
OPAL_CR_EXIT_LIBRARY();
return MPI_SUCCESS;
}
if (MPI_SUCCESS !=
ompi_errhandler_request_invoke(count, requests, FUNC_NAME)) {
OPAL_CR_EXIT_LIBRARY();
return MPI_ERR_IN_STATUS;
}
OPAL_CR_EXIT_LIBRARY();
return MPI_SUCCESS;
}