/* -*- 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_size = PMPI_File_get_size

#elif defined(HAVE_PRAGMA_HP_SEC_DEF)

#pragma _HP_SECONDARY_DEF PMPI_File_get_size MPI_File_get_size

#elif defined(HAVE_PRAGMA_CRI_DUP)

#pragma _CRI duplicate MPI_File_get_size as PMPI_File_get_size

/* end of weak pragmas */

#elif defined(HAVE_WEAK_ATTRIBUTE)

int MPI_File_get_size(MPI_File fh, MPI_Offset * size)

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

#endif

/* Include mapping from MPI->PMPI */

#define MPIO_BUILD_PROFILING

#include "mpioprof.h"

#endif

/*@

    MPI_File_get_size - Returns the file size

Input Parameters:

. fh - file handle (handle)

Output Parameters:

. size - size of the file in bytes (nonnegative integer)

.N fortran

@*/

int MPI_File_get_size(MPI_File fh, MPI_Offset * size)

{

    int error_code;

    ADIO_File adio_fh;

    ADIO_Fcntl_t *fcntl_struct;

    static char myname[] = "MPI_FILE_GET_SIZE";

#ifdef MPI_hpux

    int fl_xmpi;

    HPMP_IO_START(fl_xmpi, BLKMPIFILEGETSIZE, TRDTBLOCK, adio_fh, MPI_DATATYPE_NULL, -1);

#endif /* MPI_hpux */

    adio_fh = MPIO_File_resolve(fh);

    /* --BEGIN ERROR HANDLING-- */

    MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);

    if (size == NULL) {

        error_code = MPIO_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE,

                                          myname, __LINE__, MPI_ERR_ARG,

                                          "**nullptr", "**nullptr %s", "size");

        goto fn_fail;

    }

    /* --END ERROR HANDLING-- */

    ADIOI_TEST_DEFERRED(adio_fh, myname, &error_code);

    fcntl_struct = (ADIO_Fcntl_t *) ADIOI_Malloc(sizeof(ADIO_Fcntl_t));

    ADIO_Fcntl(adio_fh, ADIO_FCNTL_GET_FSIZE, fcntl_struct, &error_code);

    /* --BEGIN ERROR HANDLING-- */

    if (error_code != MPI_SUCCESS)

        error_code = MPIO_Err_return_file(adio_fh, error_code);

    /* --END ERROR HANDLING-- */

    *size = fcntl_struct->fsize;

    ADIOI_Free(fcntl_struct);

#ifdef MPI_hpux

    HPMP_IO_END(fl_xmpi, adio_fh, MPI_DATATYPE_NULL, -1);

#endif /* MPI_hpux */

  fn_exit:

    return error_code;

  fn_fail:

    /* --BEGIN ERROR HANDLING-- */

    error_code = MPIO_Err_return_file(fh, error_code);

    goto fn_exit;

    /* --END ERROR HANDLING-- */

}