text: /*
   * Copyright (c) 2004-2007 The Trustees of Indiana University and Indiana
   *                         University Research and Technology
   *                         Corporation.  All rights reserved.
   * Copyright (c) 2004-2005 The University of Tennessee and The University
   *                         of Tennessee Research Foundation.  All rights
   *                         reserved.
   * Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
   *                         University of Stuttgart.  All rights reserved.
   * Copyright (c) 2004-2005 The Regents of the University of California.
   *                         All rights reserved.
   * Copyright (c) 2008      Sun Microsystems, Inc.  All rights reserved.
   * Copyright (c) 2015      Research Organization for Information Science
   *                         and Technology (RIST). All rights reserved.
   * $COPYRIGHT$
   *
   * Additional copyrights may follow
   *
   * $HEADER$
   */
  
  #include "ompi_config.h"
  
  #include "ompi/mpi/c/bindings.h"
  #include "ompi/runtime/params.h"
  #include "ompi/errhandler/errhandler.h"
  #include "ompi/file/file.h"
  
  #if OMPI_BUILD_MPI_PROFILING
  #if OPAL_HAVE_WEAK_SYMBOLS
  #pragma weak MPI_File_preallocate = PMPI_File_preallocate
  #endif
  #define MPI_File_preallocate PMPI_File_preallocate
  #endif
  
  static const char FUNC_NAME[] = "MPI_File_preallocate";
  
  
  int MPI_File_preallocate(MPI_File fh, MPI_Offset size)
  {
      int rc;
  
      if (MPI_PARAM_CHECK) {
          rc = MPI_SUCCESS;
          OMPI_ERR_INIT_FINALIZE(FUNC_NAME);
          if (ompi_file_invalid(fh)) {
              rc = MPI_ERR_FILE;
              fh = MPI_FILE_NULL;
          }
          OMPI_ERRHANDLER_CHECK(rc, fh, rc, FUNC_NAME);
      }
  
      /* Call the back-end io component function */
  
      switch (fh->f_io_version) {
      case MCA_IO_BASE_V_2_0_0:
          rc = fh->f_io_selected_module.v2_0_0.
              io_module_file_preallocate(fh, size);
          break;
  
      default:
          rc = MPI_ERR_INTERN;
          break;
      }
  
      /* All done */
  
      OMPI_ERRHANDLER_RETURN(rc, fh, rc, FUNC_NAME);
  }
  