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strings. Here's one: no matter how much of the string you copy, the destination string must be space-padded for the entire remaining area. Specifically, even if you call MPI_INFO_GET and tell MPI to only copy a max of N characters of the value into the result string, if the Fortran string is M characters (where M > N), MPI must space-pad the remaining (M-N) characters to be spaces. So you're supposed to obey the argument to MPI_INFO_GET... sorta. Precedents: * http://www.ibiblio.org/pub/languages/fortran/ch2-13.html * LAM/MPI * Sun CT MPI This commit was SVN r11412.
93 строки
3.7 KiB
C
93 строки
3.7 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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#include "ompi_config.h"
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#include "ompi/mpi/f77/bindings.h"
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#include "ompi/constants.h"
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#include "ompi/communicator/communicator.h"
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#include "ompi/mpi/f77/strings.h"
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#if OMPI_HAVE_WEAK_SYMBOLS && OMPI_PROFILE_LAYER
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#pragma weak PMPI_GET_PROCESSOR_NAME = mpi_get_processor_name_f
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#pragma weak pmpi_get_processor_name = mpi_get_processor_name_f
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#pragma weak pmpi_get_processor_name_ = mpi_get_processor_name_f
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#pragma weak pmpi_get_processor_name__ = mpi_get_processor_name_f
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#elif OMPI_PROFILE_LAYER
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OMPI_GENERATE_F77_BINDINGS (PMPI_GET_PROCESSOR_NAME,
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pmpi_get_processor_name,
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pmpi_get_processor_name_,
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pmpi_get_processor_name__,
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pmpi_get_processor_name_f,
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(char *name, MPI_Fint *resultlen, MPI_Fint *ierr, int name_len),
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(name, resultlen, ierr, name_len) )
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#endif
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#if OMPI_HAVE_WEAK_SYMBOLS
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#pragma weak MPI_GET_PROCESSOR_NAME = mpi_get_processor_name_f
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#pragma weak mpi_get_processor_name = mpi_get_processor_name_f
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#pragma weak mpi_get_processor_name_ = mpi_get_processor_name_f
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#pragma weak mpi_get_processor_name__ = mpi_get_processor_name_f
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#endif
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#if ! OMPI_HAVE_WEAK_SYMBOLS && ! OMPI_PROFILE_LAYER
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OMPI_GENERATE_F77_BINDINGS (MPI_GET_PROCESSOR_NAME,
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mpi_get_processor_name,
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mpi_get_processor_name_,
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mpi_get_processor_name__,
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mpi_get_processor_name_f,
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(char *name, MPI_Fint *resultlen, MPI_Fint *ierr, int name_len),
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(name, resultlen, ierr, name_len) )
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#endif
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#if OMPI_PROFILE_LAYER && ! OMPI_HAVE_WEAK_SYMBOLS
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#include "ompi/mpi/f77/profile/defines.h"
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#endif
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static const char FUNC_NAME[] = "MPI_GET_PROCESSOR_NAME";
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/* Note that the name_len parameter is silently added by the Fortran
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compiler, and will be filled in with the actual length of the
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character array from the caller. Hence, it's the max length of the
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string that we can use. */
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void mpi_get_processor_name_f(char *name, MPI_Fint *resultlen, MPI_Fint *ierr,
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int name_len)
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{
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int c_err, ret;
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char c_name[MPI_MAX_PROCESSOR_NAME + 1];
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OMPI_SINGLE_NAME_DECL(resultlen);
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*ierr = OMPI_INT_2_FINT(MPI_Get_processor_name(c_name,
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OMPI_SINGLE_NAME_CONVERT(resultlen)));
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if (MPI_SUCCESS == OMPI_FINT_2_INT(*ierr)) {
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OMPI_SINGLE_INT_2_FINT(resultlen);
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/* Use the full length of the Fortran string, not *resultlen.
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See comment in ompi/mpi/f77/strings.c. */
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if (OMPI_SUCCESS != (ret = ompi_fortran_string_c2f(c_name, name,
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name_len))) {
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c_err = OMPI_ERRHANDLER_INVOKE(MPI_COMM_WORLD, ret, FUNC_NAME);
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*ierr = OMPI_INT_2_FINT(c_err);
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return;
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}
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}
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}
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