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diff --git a/src/clients/cave/search_extras_handle.hh b/src/clients/cave/search_extras_handle.hh
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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
+ */
+
+#ifndef PALUDIS_GUARD_SRC_CLIENTS_CAVE_SEARCH_EXTRAS_HANDLE_HH
+#define PALUDIS_GUARD_SRC_CLIENTS_CAVE_SEARCH_EXTRAS_HANDLE_HH 1
+
+#include <paludis/util/singleton.hh>
+#include <list>
+#include <string>
+
+struct CaveSearchExtrasDB;
+
+namespace paludis
+{
+ namespace cave
+ {
+ struct SearchExtrasHandle :
+ Singleton<SearchExtrasHandle>
+ {
+ typedef CaveSearchExtrasDB * (* CreateDBFunction)(const std::string &);
+ typedef CaveSearchExtrasDB * (* OpenDBFunction)(const std::string &);
+
+ typedef void (* CleanupDBFunction)(CaveSearchExtrasDB * const);
+
+ typedef void (* AddCandidateFunction)(CaveSearchExtrasDB * const, const std::string &,
+ const bool, const bool, const bool, const std::string &, const std::string &, const std::string &);
+ typedef void (* StartingAddsFunction)(CaveSearchExtrasDB * const);
+ typedef void (* DoneAddsFunction)(CaveSearchExtrasDB * const);
+
+ typedef void (* FindCandidatesFunction)(CaveSearchExtrasDB * const, std::list<std::string> &,
+ const bool, const bool, const std::string &);
+
+ void * handle;
+
+ CreateDBFunction create_db_function;
+ OpenDBFunction open_db_function;
+
+ CleanupDBFunction cleanup_db_function;
+
+ StartingAddsFunction starting_adds_function;
+ AddCandidateFunction add_candidate_function;
+ DoneAddsFunction done_adds_function;
+
+ FindCandidatesFunction find_candidates_function;
+
+ SearchExtrasHandle();
+ ~SearchExtrasHandle();
+ };
+ }
+}
+
+#endif