library_handle.h

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// Copyright (C) 2013-2020 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
#ifndef LIBRARY_HANDLE_H
#define LIBRARY_HANDLE_H
 
#include <string>
#include <cc/data.h>
 
namespace isc {
namespace hooks {
 
// Forward declarations
class CalloutHandle;
class CalloutManager;
 
extern "C" {
    typedef int (*CalloutPtr)(CalloutHandle&);
};
 
 
class LibraryHandle {
public:
 
    LibraryHandle(CalloutManager& manager, int index = -1)
        : callout_manager_(manager), index_(index) {}
 
    void registerCallout(const std::string& name, CalloutPtr callout);
 
    void registerCommandCallout(const std::string& command_name, CalloutPtr callout);
 
    bool deregisterCallout(const std::string& name, CalloutPtr callout);
 
    bool deregisterAllCallouts(const std::string& name);
 
 
    isc::data::ConstElementPtr
    getParameter(const std::string& name);
 
    isc::data::ConstElementPtr getParameters();
 
    std::vector<std::string> getParameterNames();
 
private:
    LibraryHandle(const LibraryHandle&);
 
    LibraryHandle& operator=(const LibraryHandle&);
 
    CalloutManager& callout_manager_;
 
    int index_;
};
 
} // namespace util
} // namespace isc
 
#endif // LIBRARY_HANDLE_H