94 строки
2.4 KiB
C
94 строки
2.4 KiB
C
/* -*- Mode: C; c-basic-offset:4 ; -*- */
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/*
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* $Id: get_view.c,v 1.8 2002/10/24 17:01:17 gropp Exp $
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*
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* Copyright (C) 1997 University of Chicago.
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* See COPYRIGHT notice in top-level directory.
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*/
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#include "mpioimpl.h"
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#ifdef HAVE_WEAK_SYMBOLS
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#if defined(HAVE_PRAGMA_WEAK)
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#pragma weak MPI_File_get_view = PMPI_File_get_view
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#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
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#pragma _HP_SECONDARY_DEF PMPI_File_get_view MPI_File_get_view
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#elif defined(HAVE_PRAGMA_CRI_DUP)
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#pragma _CRI duplicate MPI_File_get_view as PMPI_File_get_view
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/* end of weak pragmas */
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#endif
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/* Include mapping from MPI->PMPI */
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#define MPIO_BUILD_PROFILING
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#include "mpioprof.h"
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#endif
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#ifdef MPISGI
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#include "mpisgi2.h"
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#endif
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/*@
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MPI_File_get_view - Returns the file view
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Input Parameters:
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. fh - file handle (handle)
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Output Parameters:
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. disp - displacement (nonnegative integer)
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. etype - elementary datatype (handle)
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. filetype - filetype (handle)
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. datarep - data representation (string)
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.N fortran
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@*/
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int MPI_File_get_view(MPI_File fh, MPI_Offset *disp, MPI_Datatype *etype,
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MPI_Datatype *filetype, char *datarep)
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{
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#ifndef PRINT_ERR_MSG
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int error_code;
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static char myname[] = "MPI_FILE_GET_VIEW";
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#endif
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int i, j, k, combiner;
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MPI_Datatype copy_etype, copy_filetype;
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#ifdef PRINT_ERR_MSG
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if ((fh <= (MPI_File) 0) || (fh->cookie != ADIOI_FILE_COOKIE)) {
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FPRINTF(stderr, "MPI_File_get_view: Invalid file handle\n");
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MPI_Abort(MPI_COMM_WORLD, 1);
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}
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#else
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ADIOI_TEST_FILE_HANDLE(fh, myname);
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#endif
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if (datarep <= (char *) 0) {
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#ifdef PRINT_ERR_MSG
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FPRINTF(stderr, "MPI_File_get_view: The user must allocate memory for datarep\n");
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MPI_Abort(MPI_COMM_WORLD, 1);
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#else
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error_code = MPIR_Err_setmsg(MPI_ERR_ARG, MPIR_ERR_DATAREP_ARG,
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myname, (char *) 0, (char *) 0);
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return ADIOI_Error(fh, error_code, myname);
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#endif
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}
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*disp = fh->disp;
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strcpy(datarep, "native");
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MPI_Type_get_envelope(fh->etype, &i, &j, &k, &combiner);
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if (combiner == MPI_COMBINER_NAMED) *etype = fh->etype;
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else {
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MPI_Type_contiguous(1, fh->etype, ©_etype);
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MPI_Type_commit(©_etype);
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*etype = copy_etype;
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}
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MPI_Type_get_envelope(fh->filetype, &i, &j, &k, &combiner);
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if (combiner == MPI_COMBINER_NAMED) *filetype = fh->filetype;
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else {
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MPI_Type_contiguous(1, fh->filetype, ©_filetype);
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MPI_Type_commit(©_filetype);
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*filetype = copy_filetype;
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}
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return MPI_SUCCESS;
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}
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