17d313f6e1
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.
107 строки
4.1 KiB
C
107 строки
4.1 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_INFO_GET = mpi_info_get_f
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#pragma weak pmpi_info_get = mpi_info_get_f
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#pragma weak pmpi_info_get_ = mpi_info_get_f
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#pragma weak pmpi_info_get__ = mpi_info_get_f
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#elif OMPI_PROFILE_LAYER
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OMPI_GENERATE_F77_BINDINGS (PMPI_INFO_GET,
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pmpi_info_get,
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pmpi_info_get_,
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pmpi_info_get__,
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pmpi_info_get_f,
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(MPI_Fint *info, char *key, MPI_Fint *valuelen, char *value, MPI_Flogical *flag, MPI_Fint *ierr, int key_len, int value_len),
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(info, key, valuelen, value, flag, ierr, key_len, value_len) )
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#endif
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#if OMPI_HAVE_WEAK_SYMBOLS
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#pragma weak MPI_INFO_GET = mpi_info_get_f
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#pragma weak mpi_info_get = mpi_info_get_f
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#pragma weak mpi_info_get_ = mpi_info_get_f
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#pragma weak mpi_info_get__ = mpi_info_get_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_INFO_GET,
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mpi_info_get,
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mpi_info_get_,
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mpi_info_get__,
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mpi_info_get_f,
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(MPI_Fint *info, char *key, MPI_Fint *valuelen, char *value, MPI_Flogical *flag, MPI_Fint *ierr, int key_len, int value_len),
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(info, key, valuelen, value, flag, ierr, key_len, value_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_INFO_GET";
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/* Note that the key_len and value_len parameters are silently added
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by the Fortran compiler, and will be filled in with the actual
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length of the character array from the caller. Hence, it's the max
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length of the string that we can use. */
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void mpi_info_get_f(MPI_Fint *info, char *key, MPI_Fint *valuelen,
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char *value, MPI_Flogical *flag, MPI_Fint *ierr,
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int key_len, int value_len)
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{
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int c_err, ret;
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MPI_Info c_info;
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char *c_key = NULL, c_value[MPI_MAX_INFO_VAL + 1];
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OMPI_LOGICAL_NAME_DECL(flag);
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if (OMPI_SUCCESS != (ret = ompi_fortran_string_f2c(key, key_len, &c_key))) {
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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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c_info = MPI_Info_f2c(*info);
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*ierr = OMPI_INT_2_FINT(MPI_Info_get(c_info, c_key,
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OMPI_FINT_2_INT(*valuelen),
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c_value,
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OMPI_LOGICAL_SINGLE_NAME_CONVERT(flag)));
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if (MPI_SUCCESS == OMPI_FINT_2_INT(*ierr)) {
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OMPI_SINGLE_INT_2_LOGICAL(flag);
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/* Use the full length of the Fortran string, not *valuelen.
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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_value, value,
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value_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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free(c_key);
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return;
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}
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}
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free(c_key);
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}
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