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openmpi/ompi/mpi/c/file_seek_shared.c

75 строки
2.2 KiB
C
Исходник Обычный вид История

/*
* 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.
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* 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.
* $COPYRIGHT$
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*
* Additional copyrights may follow
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*
* $HEADER$
*/
#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_seek_shared = PMPI_File_seek_shared
#endif
#define MPI_File_seek_shared PMPI_File_seek_shared
#endif
static const char FUNC_NAME[] = "MPI_File_seek_shared";
int MPI_File_seek_shared(MPI_File fh, MPI_Offset offset, int whence)
{
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;
} else if (MPI_SEEK_SET != whence && MPI_SEEK_CUR != whence &&
MPI_SEEK_END != whence) {
rc = MPI_ERR_ARG;
}
OMPI_ERRHANDLER_CHECK(rc, fh, rc, FUNC_NAME);
}
OPAL_CR_ENTER_LIBRARY();
/* 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_seek_shared(fh, offset, whence);
break;
default:
rc = MPI_ERR_INTERN;
break;
}
/* All done */
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OMPI_ERRHANDLER_RETURN(rc, fh, rc, FUNC_NAME);
}