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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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/request/request.h"
#include "pml_ob1_recvreq.h"
#include "ompi/peruse/peruse-internal.h"
int mca_pml_ob1_irecv_init(void *addr,
size_t count,
ompi_datatype_t * datatype,
int src,
int tag,
struct ompi_communicator_t *comm,
struct ompi_request_t **request)
{
int rc;
mca_pml_ob1_recv_request_t *recvreq;
MCA_PML_OB1_RECV_REQUEST_ALLOC(recvreq, rc);
if (NULL == recvreq)
return rc;
MCA_PML_OB1_RECV_REQUEST_INIT(recvreq,
addr,
count, datatype, src, tag, comm, true);
*request = (ompi_request_t *) recvreq;
return OMPI_SUCCESS;
}
int mca_pml_ob1_irecv(void *addr,
size_t count,
ompi_datatype_t * datatype,
int src,
int tag,
struct ompi_communicator_t *comm,
struct ompi_request_t **request)
{
int rc;
mca_pml_ob1_recv_request_t *recvreq;
MCA_PML_OB1_RECV_REQUEST_ALLOC(recvreq, rc);
if (NULL == recvreq)
return rc;
MCA_PML_OB1_RECV_REQUEST_INIT(recvreq,
addr,
count, datatype, src, tag, comm, false);
MCA_PML_OB1_RECV_REQUEST_START(recvreq);
*request = (ompi_request_t *) recvreq;
return OMPI_SUCCESS;
}
int mca_pml_ob1_recv(void *addr,
size_t count,
ompi_datatype_t * datatype,
int src,
int tag,
struct ompi_communicator_t *comm,
ompi_status_public_t * status)
{
int rc;
mca_pml_ob1_recv_request_t *recvreq;
MCA_PML_OB1_RECV_REQUEST_ALLOC(recvreq, rc);
if (NULL == recvreq)
return rc;
MCA_PML_OB1_RECV_REQUEST_INIT(recvreq,
addr,
count, datatype, src, tag, comm, false);
MCA_PML_OB1_RECV_REQUEST_START(recvreq);
if (recvreq->req_recv.req_base.req_ompi.req_complete == false) {
#if OMPI_ENABLE_PROGRESS_THREADS
if(opal_progress_spin(&recvreq->req_recv.req_base.req_ompi.req_complete)) {
goto finished;
}
#endif
/* give up and sleep until completion */
if (opal_using_threads()) {
opal_mutex_lock(&ompi_request_lock);
ompi_request_waiting++;
while (recvreq->req_recv.req_base.req_ompi.req_complete == false)
opal_condition_wait(&ompi_request_cond, &ompi_request_lock);
ompi_request_waiting--;
opal_mutex_unlock(&ompi_request_lock);
} else {
ompi_request_waiting++;
while (recvreq->req_recv.req_base.req_ompi.req_complete == false)
opal_condition_wait(&ompi_request_cond, &ompi_request_lock);
ompi_request_waiting--;
}
}
#if OMPI_ENABLE_PROGRESS_THREADS
finished:
#endif
if (NULL != status) { /* return status */
*status = recvreq->req_recv.req_base.req_ompi.req_status;
}
rc = recvreq->req_recv.req_base.req_ompi.req_status.MPI_ERROR;
ompi_request_free( (ompi_request_t**)&recvreq );
return rc;
}
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