Charm++: Charm Source Code Documentation

00001 /* -*- Mode: C; c-basic-offset:4 ; -*- */
00002 /* 
00003  *   $Id$    
00004  *
00005  *   Copyright (C) 1997 University of Chicago. 
00006  *   See COPYRIGHT notice in top-level directory.
00007  */
00008 
00009 #include "mpioimpl.h"
00010 
00011 #ifdef HAVE_WEAK_SYMBOLS
00012 
00013 #if defined(HAVE_PRAGMA_WEAK)
00014 #pragma weak MPI_File_get_size = PMPI_File_get_size
00015 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
00016 #pragma _HP_SECONDARY_DEF PMPI_File_get_size MPI_File_get_size
00017 #elif defined(HAVE_PRAGMA_CRI_DUP)
00018 #pragma _CRI duplicate MPI_File_get_size as PMPI_File_get_size
00019 /* end of weak pragmas */
00020 #endif
00021 
00022 /* Include mapping from MPI->PMPI */
00023 #define MPIO_BUILD_PROFILING
00024 #include "mpioprof.h"
00025 #endif
00026 
00027 /*@
00028     MPI_File_get_size - Returns the file size
00029 
00030 Input Parameters:
00031 . fh - file handle (handle)
00032 
00033 Output Parameters:
00034 . size - size of the file in bytes (nonnegative integer)
00035 
00036 .N fortran
00037 @*/
00038 int MPI_File_get_size(MPI_File fh, MPI_Offset *size)
00039 {
00040     ADIO_Fcntl_t *fcntl_struct;
00041     int error_code;
00042 #ifndef PRINT_ERR_MSG
00043     static char myname[] = "MPI_FILE_GET_SIZE";
00044 #endif
00045 #ifdef MPI_hpux
00046     int fl_xmpi;
00047 
00048     HPMP_IO_START(fl_xmpi, BLKMPIFILEGETSIZE, TRDTBLOCK, fh,
00049                   MPI_DATATYPE_NULL, -1);
00050 #endif /* MPI_hpux */
00051 
00052 #ifdef PRINT_ERR_MSG
00053     if ((fh <= (MPI_File) 0) || (fh->cookie != ADIOI_FILE_COOKIE)) {
00054         FPRINTF(stderr, "MPI_File_get_size: Invalid file handle\n");
00055         MPI_Abort(MPI_COMM_WORLD, 1);
00056     }
00057 #else
00058     ADIOI_TEST_FILE_HANDLE(fh, myname);
00059 #endif
00060 
00061     fcntl_struct = (ADIO_Fcntl_t *) ADIOI_Malloc(sizeof(ADIO_Fcntl_t));
00062     ADIO_Fcntl(fh, ADIO_FCNTL_GET_FSIZE, fcntl_struct, &error_code);
00063     *size = fcntl_struct->fsize;
00064     ADIOI_Free(fcntl_struct);
00065 
00066 #ifdef MPI_hpux
00067     HPMP_IO_END(fl_xmpi, fh, MPI_DATATYPE_NULL, -1);
00068 #endif /* MPI_hpux */
00069     return error_code;
00070 }
libs/ck-libs/ampi/romio/mpi-io/get_size.c
