1
1
openmpi/ompi/request/grequest.h
Jeff Squyres 431f940a52 Fixes trac:496
* Add some more error checking to GREQUEST_START
 * Move the error checking in GREQUEST_COMPLETE up to inside the
   MPI_PARAM_CHECK block, where it belongs
 * Invoke the gen request query_fn in all the Right spots (per MPI-2:8.2)
 * Distinguish between grequests created from C and Fortran
 * Use the OBJ system to reference count to release the grequest at
   the Right time and invoke the grequest free_fn properly (see
   lengthy comment in grequest.c above the destructor)
 * Have ompi_grequest_complete() call ompi_request_complete() rather
   than [poorly] copy the contents of ompi_request_complete()
 * Fix Fortran function callback pointer typedefs to use proper
   Fortran types
 * Edit ompi_request_test* and ompi_request_wait* to properly handle
   generalized requests.  This adds an "if" statement in the critical
   path for all the back-end test* and wait* functions :-(,
   but fortunately George took out two "if" statements from the
   critical path last week.  So we're still ahead.  :-)
 * Move ompi_request_test() out of request.h and into request.c (all
   other test* and wait* functions were already in the .c file -- and
   ompi_request_test() was too long to be statically inlined anyway)

This commit was SVN r12402.

The following Trac tickets were found above:
  Ticket 496 --> https://svn.open-mpi.org/trac/ompi/ticket/496
2006-11-02 03:34:53 +00:00

94 строки
2.9 KiB
C

/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2005 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.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
#ifndef OMPI_GEN_REQUEST_H
#define OMPI_GEN_REQUEST_H
#include "ompi_config.h"
#include "ompi/request/request.h"
#if defined(c_plusplus) || defined(__cplusplus)
extern "C" {
#endif
OMPI_DECLSPEC OBJ_CLASS_DECLARATION(ompi_grequest_t);
/*
* Fortran types for the generalized request functions.
*/
typedef void (MPI_F_Grequest_query_function)(MPI_Aint *extra_state,
MPI_Fint *status,
MPI_Fint *ierr);
typedef void (MPI_F_Grequest_free_function)(MPI_Aint *extra_state,
MPI_Fint *ierr);
typedef void (MPI_F_Grequest_cancel_function)(MPI_Aint *extra_state,
MPI_Flogical *complete,
MPI_Fint *ierr);
typedef union {
MPI_Grequest_query_function* c_query;
MPI_F_Grequest_query_function* f_query;
} MPI_Grequest_query_fct_t;
typedef union {
MPI_Grequest_free_function* c_free;
MPI_F_Grequest_free_function* f_free;
} MPI_Grequest_free_fct_t;
typedef union {
MPI_Grequest_cancel_function* c_cancel;
MPI_F_Grequest_cancel_function* f_cancel;
} MPI_Grequest_cancel_fct_t;
struct ompi_grequest_t {
ompi_request_t greq_base;
MPI_Grequest_query_fct_t greq_query;
MPI_Grequest_free_fct_t greq_free;
MPI_Grequest_cancel_fct_t greq_cancel;
void *greq_state;
bool greq_funcs_are_c;
};
typedef struct ompi_grequest_t ompi_grequest_t;
/*
* Start a generalized request.
*/
OMPI_DECLSPEC int ompi_grequest_start(
MPI_Grequest_query_function *gquery,
MPI_Grequest_free_function *gfree,
MPI_Grequest_cancel_function *gcancel,
void* gstate,
ompi_request_t** request);
/*
* Complete a generalized request
*/
OMPI_DECLSPEC int ompi_grequest_complete(ompi_request_t *req);
/*
* Invoke the query function on a generalized request
*/
OMPI_DECLSPEC int ompi_grequest_invoke_query(ompi_request_t *request,
ompi_status_public_t *status);
#if defined(c_plusplus) || defined(__cplusplus)
}
#endif
#endif