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/*
* Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
* University Research and Technology
* Corporation. All rights reserved.
* Copyright (c) 2004-2017 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* 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) 2008-2018 University of Houston. All rights reserved.
* Copyright (c) 2018 Research Organization for Information Science
* and Technology (RIST). All rights reserved.
* Copyright (c) 2018 DataDirect Networks. All rights reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*
* These symbols are in a file by themselves to provide nice linker
* semantics. Since linkers generally pull in symbols by object fules,
* keeping these symbols as the only symbols in this file prevents
* utility programs such as "ompi_info" from having to import entire
* modules just to query their version and parameters
*/
#include "ompi_config.h"
#include "mpi.h"
#include "ompi/mca/fs/fs.h"
#include "ompi/mca/fs/base/base.h"
#include "ompi/mca/fs/lustre/fs_lustre.h"
/*
* *******************************************************************
* ************************ actions structure ************************
* *******************************************************************
*/
static mca_fs_base_module_1_0_0_t lustre = {
mca_fs_lustre_module_init, /* initialise after being selected */
mca_fs_lustre_module_finalize, /* close a module on a communicator */
mca_fs_lustre_file_open,
mca_fs_base_file_close,
mca_fs_base_file_delete,
mca_fs_base_file_set_size,
mca_fs_base_file_get_size,
mca_fs_base_file_sync
};
/*
* *******************************************************************
* ************************* structure ends **************************
* *******************************************************************
*/
int mca_fs_lustre_component_init_query(bool enable_progress_threads,
bool enable_mpi_threads)
{
/* Nothing to do */
return OMPI_SUCCESS;
}
struct mca_fs_base_module_1_0_0_t *
mca_fs_lustre_component_file_query (ompio_file_t *fh, int *priority)
{
char *tmp;
/* The code in this function is based on the ADIO FS selection in ROMIO
* Copyright (C) 1997 University of Chicago.
* See COPYRIGHT notice in top-level directory.
*/
*priority = mca_fs_lustre_priority;
tmp = strchr (fh->f_filename, ':');
if (!tmp) {
/* The communicator might be NULL if we only want to delete the file */
if (OMPIO_ROOT == fh->f_rank || MPI_COMM_NULL == fh->f_comm) {
fh->f_fstype = mca_fs_base_get_fstype ( (char *)fh->f_filename );
}
if (fh->f_comm != MPI_COMM_NULL) {
fh->f_comm->c_coll->coll_bcast (&(fh->f_fstype),
1,
MPI_INT,
OMPIO_ROOT,
fh->f_comm,
fh->f_comm->c_coll->coll_bcast_module);
}
}
else {
if (!strncmp(fh->f_filename, "lustre:", 7) ||
!strncmp(fh->f_filename, "LUSTRE:", 7)) {
fh->f_fstype = LUSTRE;
}
}
if (LUSTRE == fh->f_fstype) {
if (*priority < 50) {
*priority = 50;
return &lustre;
}
}
return NULL;
}
int mca_fs_lustre_component_file_unquery (ompio_file_t *file)
{
/* This function might be needed for some purposes later. for now it
* does not have anything to do since there are no steps which need
* to be undone if this module is not selected */
return OMPI_SUCCESS;
}
int mca_fs_lustre_module_init (ompio_file_t *file)
{
/* Make sure the file type is not overwritten by the last queried
* component */
file->f_fstype = LUSTRE;
return OMPI_SUCCESS;
}
int mca_fs_lustre_module_finalize (ompio_file_t *file)
{
return OMPI_SUCCESS;
}
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