6e1729cb93
* Add MPI::Status methods Set_elements() and Set_cancelled() * Added a bunch of comments in various places in the MPI C++ bindings implementatio just to explain what's going on (because C++ can hide a lot from you) * Insert C++ callbacks for the MPI_Grequest callback functions registered by MPI::Grequest::Start(). These callbacks keep a little meta-data (created by Grequest::Start()) that allow the proper callback signatures from C (i.e., from ompi_grequest_<foo>() in libmpi.a -- C code), translate arguments as required, and then invoke the callbacks with proper C++ signatures (i.e., call user-defined callbacks with C++ function signatures). This commit was SVN r12446. The following Trac tickets were found above: Ticket 580 --> https://svn.open-mpi.org/trac/ompi/ticket/580
114 строки
3.3 KiB
C
114 строки
3.3 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 (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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#ifndef OMPI_GEN_REQUEST_H
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#define OMPI_GEN_REQUEST_H
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#include "ompi_config.h"
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#include "ompi/request/request.h"
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#if defined(c_plusplus) || defined(__cplusplus)
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extern "C" {
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#endif
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OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_grequest_t);
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/**
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* Fortran type for generalized request query function
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*/
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typedef void (MPI_F_Grequest_query_function)(MPI_Aint *extra_state,
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MPI_Fint *status,
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MPI_Fint *ierr);
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/**
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* Fortran type for generalized request free function
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*/
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typedef void (MPI_F_Grequest_free_function)(MPI_Aint *extra_state,
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MPI_Fint *ierr);
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/**
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* Fortran type for generalized request cancel function
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*/
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typedef void (MPI_F_Grequest_cancel_function)(MPI_Aint *extra_state,
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MPI_Flogical *complete,
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MPI_Fint *ierr);
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/**
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* Union for query function for use in ompi_grequest_t
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*/
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typedef union {
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MPI_Grequest_query_function* c_query;
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MPI_F_Grequest_query_function* f_query;
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} MPI_Grequest_query_fct_t;
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/**
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* Union for free function for use in ompi_grequest_t
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*/
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typedef union {
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MPI_Grequest_free_function* c_free;
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MPI_F_Grequest_free_function* f_free;
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} MPI_Grequest_free_fct_t;
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/**
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* Union for cancel function for use in ompi_grequest_t
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*/
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typedef union {
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MPI_Grequest_cancel_function* c_cancel;
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MPI_F_Grequest_cancel_function* f_cancel;
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} MPI_Grequest_cancel_fct_t;
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/**
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* Main structure for MPI generalized requests
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*/
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struct ompi_grequest_t {
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ompi_request_t greq_base;
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MPI_Grequest_query_fct_t greq_query;
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MPI_Grequest_free_fct_t greq_free;
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MPI_Grequest_cancel_fct_t greq_cancel;
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void *greq_state;
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bool greq_funcs_are_c;
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};
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/**
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* Convenience typedef
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*/
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typedef struct ompi_grequest_t ompi_grequest_t;
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/**
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* Start a generalized request (back end for MPI_GREQUEST_START)
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*/
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OMPI_DECLSPEC int ompi_grequest_start(
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MPI_Grequest_query_function *gquery,
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MPI_Grequest_free_function *gfree,
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MPI_Grequest_cancel_function *gcancel,
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void* gstate,
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ompi_request_t** request);
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/**
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* Complete a generalized request (back end for MPI_GREQUEST_COMPLETE)
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*/
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OMPI_DECLSPEC int ompi_grequest_complete(ompi_request_t *req);
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/**
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* Invoke the query function on a generalized request
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*/
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OMPI_DECLSPEC int ompi_grequest_invoke_query(ompi_request_t *request,
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ompi_status_public_t *status);
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#if defined(c_plusplus) || defined(__cplusplus)
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}
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#endif
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#endif
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