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/* vim: set sw=4 sts=4 et foldmethod=syntax : */
/*
* Copyright (c) 2010 Ciaran McCreesh
*
* This file is part of the Paludis package manager. Paludis is free software;
* you can redistribute it and/or modify it under the terms of the GNU General
* Public License version 2, as published by the Free Software Foundation.
*
* Paludis 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, write to the Free Software Foundation, Inc., 59 Temple
* Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "search_extras_handle.hh"
#include <paludis/util/singleton-impl.hh>
#include <paludis/util/exception.hh>
#include <paludis/args/do_help.hh>
#include <paludis/about.hh>
#include <string.h>
#include <dlfcn.h>
#include <stdint.h>
#include "config.h"
#define STUPID_CAST(type, val) reinterpret_cast<type>(reinterpret_cast<uintptr_t>(val))
using namespace paludis;
using namespace cave;
SearchExtrasHandle::SearchExtrasHandle() :
handle(0),
create_db_function(0),
open_db_function(0),
cleanup_db_function(0),
starting_adds_function(0),
add_candidate_function(0),
done_adds_function(0),
find_candidates_function(0)
{
#ifndef ENABLE_SEARCH_INDEX
throw NotAvailableError("cave was built without support for search indexes");
#endif
handle = ::dlopen(("libcavesearchextras_" + stringify(PALUDIS_PC_SLOT) + ".so").c_str(), RTLD_NOW | RTLD_GLOBAL);
if (! handle)
throw args::DoHelp("Search index creation not available because dlopen said " + stringify(::dlerror()));
create_db_function = STUPID_CAST(CreateDBFunction, ::dlsym(handle, "cave_search_extras_create_db"));
if (! create_db_function)
throw args::DoHelp("Search index creation not available because dlsym said " + stringify(::dlerror()));
open_db_function = STUPID_CAST(CreateDBFunction, ::dlsym(handle, "cave_search_extras_open_db"));
if (! open_db_function)
throw args::DoHelp("Search index not available because dlsym said " + stringify(::dlerror()));
cleanup_db_function = STUPID_CAST(CleanupDBFunction, ::dlsym(handle, "cave_search_extras_cleanup"));
if (! cleanup_db_function)
throw args::DoHelp("Search index not available because dlsym said " + stringify(::dlerror()));
add_candidate_function = STUPID_CAST(AddCandidateFunction, ::dlsym(handle, "cave_search_extras_add_candidate"));
if (! add_candidate_function)
throw args::DoHelp("Search index creation not available because dlsym said " + stringify(::dlerror()));
starting_adds_function = STUPID_CAST(StartingAddsFunction, ::dlsym(handle, "cave_search_extras_starting_adds"));
if (! starting_adds_function)
throw args::DoHelp("Search index creation not available because dlsym said " + stringify(::dlerror()));
done_adds_function = STUPID_CAST(DoneAddsFunction, ::dlsym(handle, "cave_search_extras_done_adds"));
if (! done_adds_function)
throw args::DoHelp("Search index creation not available because dlsym said " + stringify(::dlerror()));
find_candidates_function = STUPID_CAST(FindCandidatesFunction, ::dlsym(handle, "cave_search_extras_find_candidates"));
if (! find_candidates_function)
throw args::DoHelp("Search index not available because dlsym said " + stringify(::dlerror()));
}
SearchExtrasHandle::~SearchExtrasHandle()
{
if (handle)
::dlclose(handle);
}
template class Singleton<SearchExtrasHandle>;
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