root/ompi/mca/io/romio321/romio/adio/ad_nfs/ad_nfs_resize.c

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DEFINITIONS

This source file includes following definitions.
  1. ADIOI_NFS_Resize

   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
   2 /* 
   3  *
   4  *   Copyright (C) 2004 University of Chicago. 
   5  *   See COPYRIGHT notice in top-level directory.
   6  */
   7 
   8 #include "ad_nfs.h"
   9 
  10 #ifdef HAVE_UNISTD_H
  11 #include <unistd.h>
  12 #endif
  13 
  14 /* NFS resize
  15  *
  16  * Note: we resize on all processors to guarantee that all processors
  17  * will have updated cache values.  This used to be the generic
  18  * implementation used by the majority of the ADIO implementations.
  19  */
  20 void ADIOI_NFS_Resize(ADIO_File fd, ADIO_Offset size, int *error_code)
  21 {
  22     int err;
  23     static char myname[] = "ADIOI_NFS_RESIZE";
  24 
  25     err = ftruncate(fd->fd_sys, size);
  26 
  27     /* --BEGIN ERROR HANDLING-- */
  28     if (err == -1) {
  29         *error_code = ADIOI_Err_create_code(myname, fd->filename, errno);
  30         return;
  31     }
  32     /* --END ERROR HANDLING-- */
  33 
  34     *error_code = MPI_SUCCESS;
  35 }

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