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/*
* Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2021 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) 2010-2012 Oak Ridge National Labs. All rights reserved.
* Copyright (c) 2015 Research Organization for Information Science
* and Technology (RIST). 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/mca/pml/pml.h"
#include "ompi/memchecker.h"
#include "ompi/request/request.h"
#include "ompi/runtime/ompi_spc.h"
#if OMPI_BUILD_MPI_PROFILING
#if OPAL_HAVE_WEAK_SYMBOLS
#pragma weak MPI_Probe = PMPI_Probe
#endif
#define MPI_Probe PMPI_Probe
#endif
static const char FUNC_NAME[] = "MPI_Probe";
int MPI_Probe(int source, int tag, MPI_Comm comm, MPI_Status *status)
{
int rc;
SPC_RECORD(OMPI_SPC_PROBE, 1);
MEMCHECKER(
memchecker_comm(comm);
);
if ( MPI_PARAM_CHECK ) {
rc = MPI_SUCCESS;
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (((tag < 0) && (tag != MPI_ANY_TAG)) || (tag > mca_pml.pml_max_tag)) {
rc = MPI_ERR_TAG;
} else if (ompi_comm_invalid(comm)) {
rc = MPI_ERR_COMM;
} else if ((source != MPI_ANY_SOURCE) &&
(MPI_PROC_NULL != source) &&
ompi_comm_peer_invalid(comm, source)) {
rc = MPI_ERR_RANK;
}
OMPI_ERRHANDLER_CHECK(rc, comm, rc, "MPI_Probe");
}
if (MPI_PROC_NULL == source) {
if (MPI_STATUS_IGNORE != status) {
OMPI_COPY_STATUS(status, ompi_request_empty.req_status, false);
/*
* Per MPI-1, the MPI_ERROR field is not defined for single-completion calls
*/
MEMCHECKER(
opal_memchecker_base_mem_undefined(&status->MPI_ERROR, sizeof(int));
);
}
return MPI_SUCCESS;
}
#if OPAL_ENABLE_FT_MPI
/*
* Check here for issues with the peer, so we do not have to duplicate the
* functionality in the PML.
*/
if( OPAL_UNLIKELY(!ompi_comm_iface_p2p_check_proc(comm, source, &rc)) ) {
if (MPI_STATUS_IGNORE != status) {
status->MPI_SOURCE = source;
status->MPI_TAG = tag;
}
OMPI_ERRHANDLER_RETURN(rc, comm, rc, FUNC_NAME);
}
#endif
rc = MCA_PML_CALL(probe(source, tag, comm, status));
/*
* Per MPI-1, the MPI_ERROR field is not defined for single-completion calls
*/
MEMCHECKER(
opal_memchecker_base_mem_undefined(&status->MPI_ERROR, sizeof(int));
);
OMPI_ERRHANDLER_RETURN(rc, comm, rc, "MPI_Probe");
}
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