115 строки
3.8 KiB
C
115 строки
3.8 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
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* University Research and Technology
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* Corporation. All rights reserved.
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* Copyright (c) 2004-2005 The University of Tennessee and The University
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* of Tennessee Research Foundation. All rights
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* reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include "request/request.h"
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#include "pml_dr_recvreq.h"
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int mca_pml_dr_irecv_init(void *addr,
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size_t count,
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ompi_datatype_t * datatype,
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int src,
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int tag,
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struct ompi_communicator_t *comm,
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struct ompi_request_t **request)
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{
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int rc;
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mca_pml_dr_recv_request_t *recvreq;
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MCA_PML_DR_RECV_REQUEST_ALLOC(recvreq, rc);
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if (NULL == recvreq)
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return rc;
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MCA_PML_DR_RECV_REQUEST_INIT(recvreq,
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addr,
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count, datatype, src, tag, comm, true);
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*request = (ompi_request_t *) recvreq;
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return OMPI_SUCCESS;
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}
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int mca_pml_dr_irecv(void *addr,
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size_t count,
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ompi_datatype_t * datatype,
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int src,
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int tag,
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struct ompi_communicator_t *comm,
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struct ompi_request_t **request)
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{
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int rc;
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mca_pml_dr_recv_request_t *recvreq;
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MCA_PML_DR_RECV_REQUEST_ALLOC(recvreq, rc);
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if (NULL == recvreq)
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return rc;
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MCA_PML_DR_RECV_REQUEST_INIT(recvreq,
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addr,
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count, datatype, src, tag, comm, false);
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MCA_PML_DR_RECV_REQUEST_START(recvreq);
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*request = (ompi_request_t *) recvreq;
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return OMPI_SUCCESS;
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}
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int mca_pml_dr_recv(void *addr,
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size_t count,
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ompi_datatype_t * datatype,
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int src,
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int tag,
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struct ompi_communicator_t *comm,
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ompi_status_public_t * status)
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{
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int rc;
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mca_pml_dr_recv_request_t *recvreq;
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MCA_PML_DR_RECV_REQUEST_ALLOC(recvreq, rc);
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if (NULL == recvreq)
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return rc;
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MCA_PML_DR_RECV_REQUEST_INIT(recvreq,
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addr,
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count, datatype, src, tag, comm, false);
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MCA_PML_DR_RECV_REQUEST_START(recvreq);
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if (recvreq->req_recv.req_base.req_ompi.req_complete == false) {
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/* give up and sleep until completion */
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if (opal_using_threads()) {
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opal_mutex_lock(&ompi_request_lock);
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ompi_request_waiting++;
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while (recvreq->req_recv.req_base.req_ompi.req_complete == false)
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opal_condition_wait(&ompi_request_cond, &ompi_request_lock);
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ompi_request_waiting--;
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opal_mutex_unlock(&ompi_request_lock);
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} else {
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ompi_request_waiting++;
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while (recvreq->req_recv.req_base.req_ompi.req_complete == false)
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opal_condition_wait(&ompi_request_cond, &ompi_request_lock);
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ompi_request_waiting--;
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}
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}
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if (NULL != status) { /* return status */
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*status = recvreq->req_recv.req_base.req_ompi.req_status;
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}
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rc = recvreq->req_recv.req_base.req_ompi.req_status.MPI_ERROR;
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MCA_PML_DR_RECV_REQUEST_RETURN(recvreq);
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return rc;
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}
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