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/*
* Copyright (c) 2004-2006 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2010 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* Copyright (c) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#include "ompi_config.h"
#include "ompi/communicator/communicator.h"
#include "mtl_portals.h"
#include "mtl_portals_request.h"
#include "mtl_portals_recv.h"
int
ompi_mtl_portals_iprobe(struct mca_mtl_base_module_t* mtl,
struct ompi_communicator_t *comm,
int src,
int tag,
int *flag,
struct ompi_status_public_t *status)
{
ptl_match_bits_t match_bits;
ptl_match_bits_t ignore_bits;
ompi_mtl_portals_event_t *recv_event = NULL;
PTL_SET_RECV_BITS(match_bits, ignore_bits, comm->c_contextid, src, tag);
/* first, check the queue of processed unexpected messages */
recv_event = ompi_mtl_portals_search_unex_q(match_bits, ignore_bits, true);
if (NULL == recv_event) {
/* check for new events */
recv_event = ompi_mtl_portals_search_unex_events(match_bits, ignore_bits, true);
}
if ( NULL != recv_event ) {
/* found it */
*flag = 1;
status->MPI_SOURCE = PTL_GET_SOURCE(recv_event->ev.match_bits);
status->MPI_TAG = PTL_GET_TAG(recv_event->ev.match_bits);
status->_ucount = recv_event->ev.rlength;
status->MPI_ERROR = OMPI_SUCCESS;
} else {
*flag = 0;
}
return OMPI_SUCCESS;
}
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