123 строки
5.8 KiB
C
123 строки
5.8 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) 2004-2007 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 (c) 2006 Cisco Systems, Inc. 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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/**
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* @file
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*/
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#ifndef MCA_PML_BASE_RECV_REQUEST_H
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#define MCA_PML_BASE_RECV_REQUEST_H
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#include "ompi/mca/pml/base/pml_base_request.h"
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#include "ompi/datatype/convertor.h"
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#include "ompi/peruse/peruse-internal.h"
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BEGIN_C_DECLS
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/**
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* Base type for receive requests.
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*/
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struct mca_pml_base_recv_request_t {
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mca_pml_base_request_t req_base; /**< base request */
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size_t req_bytes_packed; /**< size of message being received */
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};
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typedef struct mca_pml_base_recv_request_t mca_pml_base_recv_request_t;
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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(mca_pml_base_recv_request_t);
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/**
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* Initialize a receive request with call parameters.
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*
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* @param request (IN) Receive request.
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* @param addr (IN) User buffer.
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* @param count (IN) Number of elements of indicated datatype.
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* @param datatype (IN) User defined datatype.
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* @param src (IN) Source rank w/in the communicator.
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* @param tag (IN) User defined tag.
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* @param comm (IN) Communicator.
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* @param persistent (IN) Is this a persistent request.
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*/
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#define MCA_PML_BASE_RECV_REQUEST_INIT( \
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request, \
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addr, \
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count, \
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datatype, \
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src, \
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tag, \
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comm, \
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persistent) \
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{ \
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/* increment reference count on communicator */ \
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OBJ_RETAIN(comm); \
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OBJ_RETAIN(datatype); \
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\
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OMPI_REQUEST_INIT(&(request)->req_base.req_ompi, persistent); \
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(request)->req_base.req_ompi.req_mpi_object.comm = comm; \
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(request)->req_bytes_packed = 0; \
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(request)->req_base.req_addr = addr; \
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(request)->req_base.req_count = count; \
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(request)->req_base.req_peer = src; \
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(request)->req_base.req_tag = tag; \
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(request)->req_base.req_comm = comm; \
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(request)->req_base.req_proc = NULL; \
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(request)->req_base.req_sequence = 0; \
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(request)->req_base.req_datatype = datatype; \
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/* What about req_type ? */ \
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(request)->req_base.req_pml_complete = OPAL_INT_TO_BOOL(persistent); \
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(request)->req_base.req_free_called = false; \
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}
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/**
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*
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*
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*/
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#define MCA_PML_BASE_RECV_START( request ) \
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do { \
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(request)->req_pml_complete = false; \
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\
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/* always set the req_status.MPI_TAG to ANY_TAG before starting the \
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* request. This field is used if cancelled to find out if the request \
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* has been matched or not. \
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*/ \
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(request)->req_ompi.req_status.MPI_SOURCE = OMPI_ANY_SOURCE; \
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(request)->req_ompi.req_status.MPI_TAG = OMPI_ANY_TAG; \
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(request)->req_ompi.req_status.MPI_ERROR = OMPI_SUCCESS; \
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(request)->req_ompi.req_status._count = 0; \
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(request)->req_ompi.req_status._cancelled = 0; \
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\
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(request)->req_ompi.req_complete = false; \
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(request)->req_ompi.req_state = OMPI_REQUEST_ACTIVE; \
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} while (0)
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/**
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* Return a receive request. Handle the release of the communicator and the
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* attached datatype.
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*
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* @param request (IN) Receive request.
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*/
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#define MCA_PML_BASE_RECV_REQUEST_FINI( request ) \
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do { \
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OMPI_REQUEST_FINI(&(request)->req_base.req_ompi); \
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OBJ_RELEASE( (request)->req_base.req_comm); \
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OBJ_RELEASE( (request)->req_base.req_datatype ); \
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ompi_convertor_cleanup( &((request)->req_base.req_convertor) ); \
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} while (0)
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END_C_DECLS
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#endif
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