/************************************************************************
 * EOS - the CERN Disk Storage System                                   *
 * Copyright (C) 2016 CERN/Switzerland                                  *
 *                                                                      *
 * This program is free software: you can redistribute it and/or modify *
 * it under the terms of the GNU General Public License as published by *
 * the Free Software Foundation, either version 3 of the License, or    *
 * (at your option) any later version.                                  *
 *                                                                      *
 * This program is distributed in the hope that it will be useful,      *
 * but WITHOUT ANY WARRANTY; without even the implied warranty of       *
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        *
 * GNU General Public License for more details.                         *
 *                                                                      *
 * You should have received a copy of the GNU General Public License    *
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.*
 ************************************************************************/

#include "namespace/ns_quarkdb/NsQuarkdbPlugin.hh"
#include "namespace/ns_quarkdb/NamespaceGroup.hh"
#include <iostream>

/*----------------------------------------------------------------------------*/
#ifdef COVERAGE_BUILD
// Forward declaration of gcov flush API
extern "C" void __gcov_flush();

//------------------------------------------------------------------------------
// Profiling function flushing coverage data
//------------------------------------------------------------------------------
extern "C" void plugin_coverage()
{
  __gcov_flush();
}
#endif
/*----------------------------------------------------------------------------*/

//------------------------------------------------------------------------------
// Plugin exit function called by the PluginManager when doing cleanup
//------------------------------------------------------------------------------
int32_t
ExitFunc()
{
  return 0;
}

//------------------------------------------------------------------------------
// Plugin registration entry point called by the PluginManager
//------------------------------------------------------------------------------
PF_ExitFunc
PF_initPlugin(const PF_PlatformServices* services)
{
  std::cout << "Register objects provided by NsQuarkdbPlugin ..." << std::endl;
  // Register namespace group
  PF_RegisterParams param_group;
  param_group.version.major = 0;
  param_group.version.minor = 1;
  param_group.CreateFunc = eos::NsQuarkdbPlugin::CreateGroup;
  param_group.DestroyFunc = eos::NsQuarkdbPlugin::DestroyGroup;

  std::map<std::string, PF_RegisterParams> map_obj = {
    {"NamespaceGroup", param_group},
  };

  // Register all the provided object with the Plugin Manager
  for (const auto& elem : map_obj) {
    if (services->registerObject(elem.first.c_str(), &elem.second) != 0) {
      std::cerr << "Failed registering object " << elem.first << std::endl;
      return nullptr;
    }
  }

  return ExitFunc;
}

EOSNSNAMESPACE_BEGIN

//----------------------------------------------------------------------------
//! Create namespace group
//!
//! @param services pointer to other services that the plugin manager might
//!         provide
//!
//! @return pointer to namespace group
//----------------------------------------------------------------------------
void*
NsQuarkdbPlugin::CreateGroup(PF_PlatformServices* services)
{
  return new QuarkNamespaceGroup();
}

//----------------------------------------------------------------------------
//! Destroy namespace group
//!
//! @return 0 if successful, otherwise errno
//----------------------------------------------------------------------------
int32_t
NsQuarkdbPlugin::DestroyGroup(void* obj)
{
  if(!obj) {
    return -1;
  }

  delete static_cast<QuarkNamespaceGroup*>(obj);
  return 0;
}

EOSNSNAMESPACE_END