root/ompi/mca/io/romio321/romio/mpi-io/get_atom.c

DEFINITIONS

1. MPI_File_get_atomicity

   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
   2 /* 
   3  *
   4  *   Copyright (C) 1997 University of Chicago. 
   5  *   See COPYRIGHT notice in top-level directory.
   6  */
   7 
   8 #include "mpioimpl.h"
   9 
  10 #ifdef HAVE_WEAK_SYMBOLS
  11 
  12 #if defined(HAVE_PRAGMA_WEAK)
  13 #pragma weak MPI_File_get_atomicity = PMPI_File_get_atomicity
  14 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
  15 #pragma _HP_SECONDARY_DEF PMPI_File_get_atomicity MPI_File_get_atomicity
  16 #elif defined(HAVE_PRAGMA_CRI_DUP)
  17 #pragma _CRI duplicate MPI_File_get_atomicity as PMPI_File_get_atomicity
  18 /* end of weak pragmas */
  19 #elif defined(HAVE_WEAK_ATTRIBUTE)
  20 int MPI_File_get_atomicity(MPI_File fh, int *flag) __attribute__((weak,alias("PMPI_File_get_atomicity")));
  21 #endif
  22 
  23 /* Include mapping from MPI->PMPI */
  24 #define MPIO_BUILD_PROFILING
  25 #include "mpioprof.h"
  26 #endif
  27 
  28 /*@
  29     MPI_File_get_atomicity - Returns the atomicity mode
  30 
  31 Input Parameters:
  32 . fh - file handle (handle)
  33 
  34 Output Parameters:
  35 . flag - true if atomic mode, false if nonatomic mode (logical)
  36 
  37 .N fortran
  38 @*/
  39 int MPI_File_get_atomicity(MPI_File fh, int *flag)
  40 {
  41     int error_code;
  42     ADIO_File adio_fh;
  43     static char myname[] = "MPI_FILE_GET_ATOMICITY";
  44     
  45     adio_fh = MPIO_File_resolve(fh);
  46 
  47     /* --BEGIN ERROR HANDLING-- */
  48     MPIO_CHECK_FILE_HANDLE(adio_fh, myname, error_code);
  49     /* --END ERROR HANDLING-- */
  50 
  51     *flag = adio_fh->atomicity;
  52 
  53 fn_exit:
  54     return MPI_SUCCESS;
  55 }