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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2013 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
*
* This file is part of InspIRCd. InspIRCd 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, version 2.
*
* 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/>.
*/
#pragma once
#include "base.h"
class CoreExport dynamic_reference_base : public interfacebase, public insp::intrusive_list_node<dynamic_reference_base>
{
public:
class CaptureHook
{
public:
/** Called when the target of the dynamic_reference has been acquired
*/
virtual void OnCapture() = 0;
};
private:
std::string name;
CaptureHook* hook;
void resolve();
protected:
ServiceProvider* value;
public:
ModuleRef creator;
dynamic_reference_base(Module* Creator, const std::string& Name);
~dynamic_reference_base();
inline const std::string& GetProvider() { return name; }
void SetProvider(const std::string& newname);
/** Set handler to call when the target object becomes available
* @param h Handler to call
*/
void SetCaptureHook(CaptureHook* h) { hook = h; }
void check();
operator bool() { return (value != NULL); }
static void reset_all();
};
inline void dynamic_reference_base::check()
{
if (!value)
throw ModuleException("Dynamic reference to '" + name + "' failed to resolve");
}
template<typename T>
class dynamic_reference : public dynamic_reference_base
{
public:
dynamic_reference(Module* Creator, const std::string& Name)
: dynamic_reference_base(Creator, Name) {}
inline T* operator->()
{
check();
return static_cast<T*>(value);
}
T* operator*()
{
return operator->();
}
};
template<typename T>
class dynamic_reference_nocheck : public dynamic_reference_base
{
public:
dynamic_reference_nocheck(Module* Creator, const std::string& Name)
: dynamic_reference_base(Creator, Name) {}
T* operator->()
{
return static_cast<T*>(value);
}
T* operator*()
{
return operator->();
}
};
class ModeHandler;
class ChanModeReference : public dynamic_reference_nocheck<ModeHandler>
{
public:
ChanModeReference(Module* mod, const std::string& modename)
: dynamic_reference_nocheck<ModeHandler>(mod, "mode/" + modename) {}
};
class UserModeReference : public dynamic_reference_nocheck<ModeHandler>
{
public:
UserModeReference(Module* mod, const std::string& modename)
: dynamic_reference_nocheck<ModeHandler>(mod, "umode/" + modename) {}
};
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