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/* -*- Mode: C; c-basic-offset:4 ; indent-tabs-mode:nil ; -*- */
/*
* Copyright (C) 1997 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*/
#include "mpioimpl.h"
#ifdef HAVE_WEAK_SYMBOLS
#if defined(HAVE_PRAGMA_WEAK)
#pragma weak MPI_File_read_at = PMPI_File_read_at
#elif defined(HAVE_PRAGMA_HP_SEC_DEF)
#pragma _HP_SECONDARY_DEF PMPI_File_read_at MPI_File_read_at
#elif defined(HAVE_PRAGMA_CRI_DUP)
#pragma _CRI duplicate MPI_File_read_at as PMPI_File_read_at
/* end of weak pragmas */
#elif defined(HAVE_WEAK_ATTRIBUTE)
int MPI_File_read_at(MPI_File fh, MPI_Offset offset, void *buf, int count, MPI_Datatype datatype,
MPI_Status *status) __attribute__((weak,alias("PMPI_File_read_at")));
#endif
/* Include mapping from MPI->PMPI */
#define MPIO_BUILD_PROFILING
#include "mpioprof.h"
#endif
/* status object not filled currently */
/*@
MPI_File_read_at - Read using explicit offset
Input Parameters:
. fh - file handle (handle)
. offset - file offset (nonnegative integer)
. count - number of elements in buffer (nonnegative integer)
. datatype - datatype of each buffer element (handle)
Output Parameters:
. buf - initial address of buffer (choice)
. status - status object (Status)
.N fortran
@*/
int MPI_File_read_at(MPI_File fh, MPI_Offset offset, void *buf,
int count, MPI_Datatype datatype, MPI_Status *status)
{
int error_code;
static char myname[] = "MPI_FILE_READ_AT";
#ifdef MPI_hpux
int fl_xmpi;
HPMP_IO_START(fl_xmpi, BLKMPIFILEREADAT, TRDTBLOCK, fh, datatype,
count);
#endif /* MPI_hpux */
/* ADIOI_File_read() defined in mpi-io/read.c */
error_code = MPIOI_File_read(fh, offset, ADIO_EXPLICIT_OFFSET, buf,
count, datatype, myname, status);
#ifdef MPI_hpux
HPMP_IO_END(fl_xmpi, fh, datatype, count);
#endif /* MPI_hpux */
return error_code;
}
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