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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil -*- */
/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2016 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 (c) 2006 Cisco Systems, Inc. All rights reserved.
* Copyright (c) 2016 Los Alamos National Security, LLC. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* @file
*/
#ifndef MCA_PML_BASE_RECV_REQUEST_H
#define MCA_PML_BASE_RECV_REQUEST_H
#include "ompi_config.h"
#include "ompi/mca/pml/base/pml_base_request.h"
#include "opal/datatype/opal_convertor.h"
#include "ompi/peruse/peruse-internal.h"
BEGIN_C_DECLS
/**
* Base type for receive requests.
*/
struct mca_pml_base_recv_request_t {
mca_pml_base_request_t req_base; /**< base request */
size_t req_bytes_packed; /**< size of message being received */
};
typedef struct mca_pml_base_recv_request_t mca_pml_base_recv_request_t;
OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_pml_base_recv_request_t);
/**
* Initialize a receive request with call parameters.
*
* @param request (IN) Receive request.
* @param addr (IN) User buffer.
* @param count (IN) Number of elements of indicated datatype.
* @param datatype (IN) User defined datatype.
* @param src (IN) Source rank w/in the communicator.
* @param tag (IN) User defined tag.
* @param comm (IN) Communicator.
* @param persistent (IN) Is this a persistent request.
*/
#define MCA_PML_BASE_RECV_REQUEST_INIT( \
request, \
addr, \
count, \
datatype, \
src, \
tag, \
comm, \
persistent) \
{ \
/* increment reference count on communicator */ \
OBJ_RETAIN(comm); \
OMPI_DATATYPE_RETAIN(datatype); \
\
OMPI_REQUEST_INIT(&(request)->req_base.req_ompi, persistent); \
(request)->req_base.req_ompi.req_mpi_object.comm = comm; \
(request)->req_bytes_packed = 0; \
(request)->req_base.req_addr = addr; \
(request)->req_base.req_count = count; \
(request)->req_base.req_peer = src; \
(request)->req_base.req_tag = tag; \
(request)->req_base.req_comm = comm; \
(request)->req_base.req_proc = NULL; \
(request)->req_base.req_sequence = 0; \
(request)->req_base.req_datatype = datatype; \
/* What about req_type ? */ \
(request)->req_base.req_pml_complete = false; \
(request)->req_base.req_free_called = false; \
}
/**
*
*
*/
#define MCA_PML_BASE_RECV_START( request ) \
do { \
(request)->req_bytes_packed = 0; \
(request)->req_base.req_pml_complete = false; \
\
/* always set the req_status.MPI_TAG to ANY_TAG before starting the \
* request. This field is used if cancelled to find out if the request \
* has been matched or not. \
*/ \
(request)->req_base.req_ompi.req_status.MPI_SOURCE = OMPI_ANY_SOURCE; \
(request)->req_base.req_ompi.req_status.MPI_TAG = OMPI_ANY_TAG; \
(request)->req_base.req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS; \
(request)->req_base.req_ompi.req_status._ucount = 0; \
(request)->req_base.req_ompi.req_status._cancelled = 0; \
\
(request)->req_base.req_ompi.req_complete = REQUEST_PENDING; \
(request)->req_base.req_ompi.req_state = OMPI_REQUEST_ACTIVE; \
} while (0)
/**
* Return a receive request. Handle the release of the communicator and the
* attached datatype.
*
* @param request (IN) Receive request.
*/
#define MCA_PML_BASE_RECV_REQUEST_FINI( request ) \
do { \
OMPI_REQUEST_FINI(&(request)->req_base.req_ompi); \
OBJ_RELEASE( (request)->req_base.req_comm); \
OMPI_DATATYPE_RELEASE( (request)->req_base.req_datatype ); \
opal_convertor_cleanup( &((request)->req_base.req_convertor) ); \
} while (0)
END_C_DECLS
#endif
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