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

DEFINITIONS

1. MPI_File_write_at

   1 /* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
   2 /* 
   3  *   Copyright (C) 1997 University of Chicago. 
   4  *   See COPYRIGHT notice in top-level directory.
   5  */
   6 
   7 #include "mpioimpl.h"
   8 
   9 #ifdef HAVE_WEAK_SYMBOLS
  10 
  11 #if defined(HAVE_PRAGMA_WEAK)
  12 #pragma weak MPI_File_write_at = PMPI_File_write_at
  13 #elif defined(HAVE_PRAGMA_HP_SEC_DEF)
  14 #pragma _HP_SECONDARY_DEF PMPI_File_write_at MPI_File_write_at
  15 #elif defined(HAVE_PRAGMA_CRI_DUP)
  16 #pragma _CRI duplicate MPI_File_write_at as PMPI_File_write_at
  17 /* end of weak pragmas */
  18 #elif defined(HAVE_WEAK_ATTRIBUTE)
  19 int MPI_File_write_at(MPI_File fh, MPI_Offset offset, const void * buf, int count,
  20                       MPI_Datatype datatype, MPI_Status *status)
  21     __attribute__((weak,alias("PMPI_File_write_at")));
  22 #endif
  23 
  24 /* Include mapping from MPI->PMPI */
  25 #define MPIO_BUILD_PROFILING
  26 #include "mpioprof.h"
  27 #endif
  28 
  29 /* status object not filled currently */
  30 
  31 /*@
  32     MPI_File_write_at - Write using explicit offset
  33 
  34 Input Parameters:
  35 . fh - file handle (handle)
  36 . offset - file offset (nonnegative integer)
  37 . buf - initial address of buffer (choice)
  38 . count - number of elements in buffer (nonnegative integer)
  39 . datatype - datatype of each buffer element (handle)
  40 
  41 Output Parameters:
  42 . status - status object (Status)
  43 
  44 .N fortran
  45 @*/
  46 int MPI_File_write_at(MPI_File fh, MPI_Offset offset, ROMIO_CONST void *buf,
  47                       int count, MPI_Datatype datatype, MPI_Status *status)
  48 {
  49     int error_code;
  50     static char myname[] = "MPI_FILE_WRITE_AT";
  51 #ifdef MPI_hpux
  52     int fl_xmpi;
  53 
  54     HPMP_IO_START(fl_xmpi, BLKMPIFILEWRITEAT, TRDTBLOCK, fh, datatype, count);
  55 #endif /* MPI_hpux */
  56 
  57     /* MPIOI_File_write() defined in mpi-io/write.c */
  58     error_code = MPIOI_File_write(fh, offset, ADIO_EXPLICIT_OFFSET, buf,
  59                                   count, datatype, myname, status);
  60 
  61 #ifdef MPI_hpux
  62     HPMP_IO_END(fl_xmpi, fh, datatype, count);
  63 #endif /* MPI_hpux */
  64 
  65     return error_code;
  66 }