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openmpi/ompi/mpi/c/request_c2f.c
Josh Hursey dadca7da88 Merging in the jjhursey-ft-cr-stable branch (r13912 : HEAD).
This merge adds Checkpoint/Restart support to Open MPI. The initial
frameworks and components support a LAM/MPI-like implementation.

This commit follows the risk assessment presented to the Open MPI core
development group on Feb. 22, 2007.

This commit closes trac:158

More details to follow.

This commit was SVN r14051.

The following SVN revisions from the original message are invalid or
inconsistent and therefore were not cross-referenced:
  r13912

The following Trac tickets were found above:
  Ticket 158 --> https://svn.open-mpi.org/trac/ompi/ticket/158
2007-03-16 23:11:45 +00:00

69 строки
2.2 KiB
C

/*
* Copyright (c) 2004-2007 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
*
* $HEADER$
*/
#include "ompi_config.h"
#include <stdio.h>
#include "ompi/mpi/c/bindings.h"
#include "ompi/mpi/f77/fint_2_int.h"
#include "ompi/request/request.h"
#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILING_DEFINES
#pragma weak MPI_Request_c2f = PMPI_Request_c2f
#endif
#if OMPI_PROFILING_DEFINES
#include "ompi/mpi/c/profile/defines.h"
#endif
static const char FUNC_NAME[] = "MPI_Request_f2c";
MPI_Fint MPI_Request_c2f(MPI_Request request)
{
OPAL_CR_TEST_CHECKPOINT_READY();
if ( MPI_PARAM_CHECK ) {
OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
if (NULL == request) {
return OMPI_INT_2_FINT(-1);
}
}
/* We only put requests in the f2c table when this function is
invoked. This is because putting requests in the table
involves locking and unlocking the table, which would incur a
performance penalty (in the critical performance path) for C
applications. In this way, at least only Fortran applications
are penalized. :-\
Modifying this one function neatly fixes up all the Fortran
bindings because they all call MPI_Request_c2f in order to
transmorgify the C MPI_Request that they got back into a
fortran integer.
*/
if (MPI_UNDEFINED == request->req_f_to_c_index) {
request->req_f_to_c_index =
ompi_pointer_array_add(&ompi_request_f_to_c_table, request);
}
return OMPI_INT_2_FINT(request->req_f_to_c_index) ;
}