/* -*- 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_position_shared = PMPI_File_get_position_shared

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_File_get_position_shared MPI_File_get_position_shared

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_File_get_position_shared as PMPI_File_get_position_shared

/* end of weak pragmas */

#elif defined(HAVE_WEAK_ATTRIBUTE)

int MPI_File_get_position_shared(MPI_File fh, MPI_Offset * offset)

    __attribute__ ((weak, alias("PMPI_File_get_position_shared")));

#endif

/* Include mapping from MPI->PMPI */

#define MPIO_BUILD_PROFILING

#include "mpioprof.h"

#endif

/*@

    MPI_File_get_position_shared - Returns the current position of the

               shared file pointer in etype units relative to the current view

Input Parameters:

. fh - file handle (handle)

Output Parameters:

. offset - offset of shared file pointer (nonnegative integer)

.N fortran

@*/

int MPI_File_get_position_shared(MPI_File fh, MPI_Offset * offset)

{

    int error_code;

    ADIO_File adio_fh;

    static char myname[] = "MPI_FILE_GET_POSITION_SHARED";

    adio_fh = MPIO_File_resolve(fh);

    /* --BEGIN ERROR HANDLING-- */

    MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);

    MPIO_CHECK_NOT_SEQUENTIAL_MODE(adio_fh, myname, error_code);

    MPIO_CHECK_FS_SUPPORTS_SHARED(adio_fh, myname, error_code);

    /* --END ERROR HANDLING-- */

    ADIOI_TEST_DEFERRED(adio_fh, myname, &error_code);

    ADIO_Get_shared_fp(adio_fh, 0, offset, &error_code);

    /* --BEGIN ERROR HANDLING-- */

    if (error_code != MPI_SUCCESS)

        error_code = MPIO_Err_return_file(adio_fh, error_code);

    /* --END ERROR HANDLING-- */

  fn_exit:

    return error_code;

}