root/ompi/mca/io/romio321/romio/adio/ad_hfs/ad_hfs_write.c

DEFINITIONS

1. ADIOI_HFS_WriteContig

   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 "ad_hfs.h"
   9 
  10 #ifndef HAVE_LSEEK64
  11 #define lseek64 lseek
  12 #endif
  13 
  14 void ADIOI_HFS_WriteContig(ADIO_File fd, void *buf, int count, 
  15                      MPI_Datatype datatype, int file_ptr_type,
  16                      ADIO_Offset offset, ADIO_Status *status, int *error_code)
  17 {
  18     MPI_Count err=-1, datatype_size, len;
  19 #ifndef PRINT_ERR_MSG
  20     static char myname[] = "ADIOI_HFS_WRITECONTIG";
  21 #endif
  22 
  23     MPI_Type_size_x(datatype, &datatype_size);
  24     len = datatype_size * count;
  25 
  26 #ifdef SPPUX
  27     fd->fp_sys_posn = -1; /* set it to null, since we are using pwrite */
  28     if (file_ptr_type == ADIO_EXPLICIT_OFFSET) 
  29         err = pwrite64(fd->fd_sys, buf, len, offset);
  30     else {    /* write from curr. location of ind. file pointer */
  31         err = pwrite64(fd->fd_sys, buf, len, fd->fp_ind);
  32         fd->fp_ind += err;
  33     }
  34 #endif
  35 
  36 #ifdef HPUX
  37     if (file_ptr_type == ADIO_EXPLICIT_OFFSET) {
  38         if (fd->fp_sys_posn != offset)
  39             lseek64(fd->fd_sys, offset, SEEK_SET);
  40         err = write(fd->fd_sys, buf, len);
  41         fd->fp_sys_posn = offset + err;
  42         /* individual file pointer not updated */        
  43     }
  44     else { /* write from curr. location of ind. file pointer */
  45         if (fd->fp_sys_posn != fd->fp_ind)
  46             lseek64(fd->fd_sys, fd->fp_ind, SEEK_SET);
  47         err = write(fd->fd_sys, buf, len);
  48         fd->fp_ind += err;
  49         fd->fp_sys_posn = fd->fp_ind;
  50     }
  51 #endif
  52 
  53 #ifdef HAVE_STATUS_SET_BYTES
  54     if (err != -1) MPIR_Status_set_bytes(status, datatype, err);
  55 #endif
  56 
  57     if (err == -1) {
  58 #ifdef MPICH
  59         *error_code = MPIR_Err_create_code(MPI_SUCCESS, MPIR_ERR_RECOVERABLE, myname, __LINE__, MPI_ERR_IO, "**io",
  60             "**io %s", strerror(errno));
  61 #elif defined(PRINT_ERR_MSG)
  62     *error_code =  MPI_SUCCESS;
  63 #else /* MPICH-1 */
  64         *error_code = MPIR_Err_setmsg(MPI_ERR_IO, MPIR_ADIO_ERROR,
  65                               myname, "I/O Error", "%s", strerror(errno));
  66         ADIOI_Error(fd, *error_code, myname);
  67 #endif
  68     }
  69     else *error_code = MPI_SUCCESS;
  70 }