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/*
* Copyright (c) 2004-2006 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 "ompi/datatype/datatype.h"
#include "ompi/communicator/communicator.h"
#include "ompi/datatype/convertor.h"
#include "pml_cm.h"
#include "pml_cm_recvreq.h"
int
mca_pml_cm_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 ret;
mca_pml_cm_hvy_recv_request_t *recvreq;
ompi_proc_t* ompi_proc;
MCA_PML_CM_HVY_RECV_REQUEST_ALLOC(recvreq, ret);
if (NULL == recvreq || OMPI_SUCCESS != ret) return ret;
MCA_PML_CM_HVY_RECV_REQUEST_INIT(recvreq, ompi_proc, comm, tag, src,
datatype, addr, count, true);
*request = (ompi_request_t*) recvreq;
return OMPI_SUCCESS;
}
int
mca_pml_cm_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 ret;
mca_pml_cm_thin_recv_request_t *recvreq;
ompi_proc_t* ompi_proc;
MCA_PML_CM_THIN_RECV_REQUEST_ALLOC(recvreq, ret);
if (NULL == recvreq || OMPI_SUCCESS != ret) return ret;
MCA_PML_CM_THIN_RECV_REQUEST_INIT(recvreq,
ompi_proc,
comm,
tag,
src,
datatype,
addr,
count);
MCA_PML_CM_THIN_RECV_REQUEST_START(recvreq, comm, tag, src, ret);
if (OMPI_SUCCESS == ret) *request = (ompi_request_t*) recvreq;
return ret;
}
int
mca_pml_cm_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 ret;
mca_pml_cm_thin_recv_request_t *recvreq;
ompi_proc_t* ompi_proc;
MCA_PML_CM_THIN_RECV_REQUEST_ALLOC(recvreq, ret);
if (NULL == recvreq || OMPI_SUCCESS != ret) return ret;
MCA_PML_CM_THIN_RECV_REQUEST_INIT(recvreq,
ompi_proc,
comm,
tag,
src,
datatype,
addr,
count);
MCA_PML_CM_THIN_RECV_REQUEST_START(recvreq, comm, tag, src, ret);
if (OMPI_SUCCESS != ret) {
/* BWB - XXX - need cleanup of request here */
MCA_PML_CM_THIN_RECV_REQUEST_RETURN(recvreq);
}
if (recvreq->req_base.req_ompi.req_complete == false) {
/* give up and sleep until completion */
if (opal_using_threads()) {
opal_mutex_lock(&ompi_request_lock);
ompi_request_waiting++;
while (recvreq->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_base.req_ompi.req_complete == false)
opal_condition_wait(&ompi_request_cond, &ompi_request_lock);
ompi_request_waiting--;
}
}
if (NULL != status) { /* return status */
*status = recvreq->req_base.req_ompi.req_status;
}
ret = recvreq->req_base.req_ompi.req_status.MPI_ERROR;
ompi_request_free( (ompi_request_t**)&recvreq );
return ret;
}
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