/*
 * Copyright (c) 2004-2005 The Trustees of Indiana University and Indiana
 *                         University Research and Technology
 *                         Corporation.  All rights reserved.
 * Copyright (c) 2004-2006 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) 2008-2014 University of Houston. All rights reserved.
 * Copyright (c) 2018      Research Organization for Information Science
 *                         and Technology (RIST). 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/fbtl/fbtl.h"
#include "ompi/mca/fbtl/base/base.h"
#include "ompi/mca/fbtl/pvfs2/fbtl_pvfs2.h"

/*
 * *******************************************************************
 * ************************ actions structure ************************
 * *******************************************************************
 */
static mca_fbtl_base_module_1_0_0_t pvfs2 =  {
    mca_fbtl_pvfs2_module_init,     /* initialise after being selected */
    mca_fbtl_pvfs2_module_finalize, /* close a module on a communicator */
    mca_fbtl_pvfs2_preadv,          /* blocking read */
    NULL,                           /* non-blocking read */
    mca_fbtl_pvfs2_pwritev,         /* blocking write */
    NULL,                           /* non-blocking write */
    NULL,                           /* module specific progress */
    NULL,                           /* free module specific data items on the request */
    mca_fbtl_base_check_atomicity   /* check whether atomicity is supported on this fs */
};
/*
 * *******************************************************************
 * ************************* structure ends **************************
 * *******************************************************************
 */

int mca_fbtl_pvfs2_component_init_query(bool enable_progress_threads,
                                      bool enable_mpi_threads) {
    /* Nothing to do */

   return OMPI_SUCCESS;
}

struct mca_fbtl_base_module_1_0_0_t *
mca_fbtl_pvfs2_component_file_query (ompio_file_t *fh, int *priority) {
   *priority = mca_fbtl_pvfs2_priority;

   if (PVFS2 == fh->f_fstype) {
       if (*priority < 50) {
           *priority = 50;
       }
   }

   return &pvfs2;
}

int mca_fbtl_pvfs2_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_fbtl_pvfs2_module_init (ompio_file_t *file) {
    return OMPI_SUCCESS;
}


int mca_fbtl_pvfs2_module_finalize (ompio_file_t *file) {
    return OMPI_SUCCESS;
}
