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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
*
* Copyright (C) 1997 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*/
#include "mpioimpl.h"
#ifdef HAVE_WEAK_SYMBOLS
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_File_get_view = PMPI_File_get_view
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_File_get_view MPI_File_get_view
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_File_get_view as PMPI_File_get_view
/* end of weak pragmas */
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_File_get_view(MPI_File fh, MPI_Offset *disp, MPI_Datatype *etype, MPI_Datatype *filetype,
char *datarep) __attribute__((weak,alias("PMPI_File_get_view")));
#endif
/* Include mapping from MPI->PMPI */
#define MPIO_BUILD_PROFILING
#include "mpioprof.h"
#endif
#ifdef MPISGI
#include "mpisgi2.h"
#endif
/*@
MPI_File_get_view - Returns the file view
Input Parameters:
. fh - file handle (handle)
Output Parameters:
. disp - displacement (nonnegative integer)
. etype - elementary datatype (handle)
. filetype - filetype (handle)
. datarep - data representation (string)
.N fortran
@*/
int MPI_File_get_view(MPI_File fh, MPI_Offset *disp, MPI_Datatype *etype,
MPI_Datatype *filetype, char *datarep)
{
int error_code;
ADIO_File adio_fh;
static char myname[] = "MPI_FILE_GET_VIEW";
int i, j, k, combiner;
MPI_Datatype copy_etype, copy_filetype;
MPIU_THREAD_CS_ENTER(ALLFUNC,);
adio_fh = MPIO_File_resolve(fh);
/* --BEGIN ERROR HANDLING-- */
MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);
if (datarep <= (char *) 0)
{
error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,
myname, __LINE__, MPI_ERR_ARG,
"**iodatarepnomem", 0);
error_code = MPIO_Err_return_file(adio_fh, error_code);
goto fn_exit;
}
/* --END ERROR HANDLING-- */
*disp = adio_fh->disp;
ADIOI_Strncpy(datarep,
(adio_fh->is_external32 ? "external32": "native"), MPI_MAX_DATAREP_STRING);
MPI_Type_get_envelope(adio_fh->etype, &i, &j, &k, &combiner);
if (combiner == MPI_COMBINER_NAMED) *etype = adio_fh->etype;
else {
/* FIXME: It is wrong to use MPI_Type_contiguous; the user could choose to
re-implement MPI_Type_contiguous in an unexpected way. Either use
MPIR_Barrier_impl as in MPICH or PMPI_Type_contiguous */
MPI_Type_contiguous(1, adio_fh->etype, ©_etype);
/* FIXME: Ditto for MPI_Type_commit - use NMPI or PMPI */
MPI_Type_commit(©_etype);
*etype = copy_etype;
}
/* FIXME: Ditto for MPI_Type_xxx - use NMPI or PMPI */
MPI_Type_get_envelope(adio_fh->filetype, &i, &j, &k, &combiner);
if (combiner == MPI_COMBINER_NAMED) *filetype = adio_fh->filetype;
else {
MPI_Type_contiguous(1, adio_fh->filetype, ©_filetype);
MPI_Type_commit(©_filetype);
*filetype = copy_filetype;
}
fn_exit:
MPIU_THREAD_CS_EXIT(ALLFUNC,);
return MPI_SUCCESS;
}
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