Major plugin refactor and cleanup.

Switched to POCO library for unified platform/library interface.
Deprecated the external module API. It was creating more problems than solving.
Removed most built-in libraries in favor of system libraries for easier maintenance.
Cleaned and secured code with help from static analyzers.

vendor/POCO/Foundation/include/Poco/FunctionPriorityDelegate.h

@@ -0,0 +1,450 @@
+//
+// FunctionPriorityDelegate.h
+//
+// Library: Foundation
+// Package: Events
+// Module:  FunctionPriorityDelegate
+//
+// Implementation of the FunctionPriorityDelegate template.
+//
+// Copyright (c) 2006-2011, Applied Informatics Software Engineering GmbH.
+// and Contributors.
+//
+// SPDX-License-Identifier:	BSL-1.0
+//
+
+
+#ifndef Foundation_FunctionPriorityDelegate_INCLUDED
+#define Foundation_FunctionPriorityDelegate_INCLUDED
+
+
+#include "Poco/Foundation.h"
+#include "Poco/AbstractPriorityDelegate.h"
+#include "Poco/Mutex.h"
+
+
+namespace Poco {
+
+
+template <class TArgs, bool useSender = true, bool senderIsConst = true> 
+class FunctionPriorityDelegate: public AbstractPriorityDelegate<TArgs>
+	/// Wraps a freestanding function or static member function 
+	/// for use as a PriorityDelegate.
+{
+public:
+	typedef void (*NotifyFunction)(const void*, TArgs&);
+
+	FunctionPriorityDelegate(NotifyFunction function, int prio):
+		AbstractPriorityDelegate<TArgs>(prio),
+		_function(function)
+	{
+	}
+	
+	FunctionPriorityDelegate(const FunctionPriorityDelegate& delegate):
+		AbstractPriorityDelegate<TArgs>(delegate),
+		_function(delegate._function)
+	{
+	}
+	
+	FunctionPriorityDelegate& operator = (const FunctionPriorityDelegate& delegate)
+	{
+		if (&delegate != this)
+		{
+			this->_function = delegate._function;
+			this->_priority = delegate._priority;
+		}
+		return *this;
+	}
+
+	~FunctionPriorityDelegate()
+	{
+	}
+
+	bool notify(const void* sender, TArgs& arguments)
+	{
+		Mutex::ScopedLock lock(_mutex);
+		if (_function)
+		{
+			(*_function)(sender, arguments);
+			return true;
+		}
+		else return false;
+	}
+
+	bool equals(const AbstractDelegate<TArgs>& other) const
+	{
+		const FunctionPriorityDelegate* pOtherDelegate = dynamic_cast<const FunctionPriorityDelegate*>(other.unwrap());
+		return pOtherDelegate && this->priority() == pOtherDelegate->priority() && _function == pOtherDelegate->_function;
+	}
+
+	AbstractDelegate<TArgs>* clone() const
+	{
+		return new FunctionPriorityDelegate(*this);
+	}
+
+	void disable()
+	{
+		Mutex::ScopedLock lock(_mutex);
+		_function = 0;
+	}
+
+protected:
+	NotifyFunction _function;
+	Mutex _mutex;
+
+private:
+	FunctionPriorityDelegate();
+};
+
+
+template <class TArgs> 
+class FunctionPriorityDelegate<TArgs, true, false>: public AbstractPriorityDelegate<TArgs>
+{
+public:
+	typedef void (*NotifyFunction)(void*, TArgs&);
+
+	FunctionPriorityDelegate(NotifyFunction function, int prio):
+		AbstractPriorityDelegate<TArgs>(prio),
+		_function(function)
+	{
+	}
+	
+	FunctionPriorityDelegate(const FunctionPriorityDelegate& delegate):
+		AbstractPriorityDelegate<TArgs>(delegate),
+		_function(delegate._function)
+	{
+	}
+	
+	FunctionPriorityDelegate& operator = (const FunctionPriorityDelegate& delegate)
+	{
+		if (&delegate != this)
+		{
+			this->_function = delegate._function;
+			this->_priority = delegate._priority;
+		}
+		return *this;
+	}
+
+	~FunctionPriorityDelegate()
+	{
+	}
+
+	bool notify(const void* sender, TArgs& arguments)
+	{
+		Mutex::ScopedLock lock(_mutex);
+		if (_function)
+		{
+			(*_function)(const_cast<void*>(sender), arguments);
+			return true;
+		}
+		else return false;
+	}
+
+	bool equals(const AbstractDelegate<TArgs>& other) const
+	{
+		const FunctionPriorityDelegate* pOtherDelegate = dynamic_cast<const FunctionPriorityDelegate*>(other.unwrap());
+		return pOtherDelegate && this->priority() == pOtherDelegate->priority() && _function == pOtherDelegate->_function;
+	}
+
+	AbstractDelegate<TArgs>* clone() const
+	{
+		return new FunctionPriorityDelegate(*this);
+	}
+
+	void disable()
+	{
+		Mutex::ScopedLock lock(_mutex);
+		_function = 0;
+	}
+
+protected:
+	NotifyFunction _function;
+	Mutex _mutex;
+
+private:
+	FunctionPriorityDelegate();
+};
+
+
+template <class TArgs> 
+class FunctionPriorityDelegate<TArgs, false>: public AbstractPriorityDelegate<TArgs>
+{
+public:
+	typedef void (*NotifyFunction)(TArgs&);
+
+	FunctionPriorityDelegate(NotifyFunction function, int prio):
+		AbstractPriorityDelegate<TArgs>(prio),
+		_function(function)
+	{
+	}
+	
+	FunctionPriorityDelegate(const FunctionPriorityDelegate& delegate):
+		AbstractPriorityDelegate<TArgs>(delegate),
+		_function(delegate._function)
+	{
+	}
+	
+	FunctionPriorityDelegate& operator = (const FunctionPriorityDelegate& delegate)
+	{
+		if (&delegate != this)
+		{
+			this->_function = delegate._function;
+			this->_priority = delegate._priority;
+		}
+		return *this;
+	}
+
+	~FunctionPriorityDelegate()
+	{
+	}
+
+	bool notify(const void* sender, TArgs& arguments)
+	{
+		Mutex::ScopedLock lock(_mutex);
+		if (_function)
+		{
+			(*_function)(arguments);
+			return true;
+		}
+		else return false;
+	}
+
+	bool equals(const AbstractDelegate<TArgs>& other) const
+	{
+		const FunctionPriorityDelegate* pOtherDelegate = dynamic_cast<const FunctionPriorityDelegate*>(other.unwrap());
+		return pOtherDelegate && this->priority() == pOtherDelegate->priority() && _function == pOtherDelegate->_function;
+	}
+
+	AbstractDelegate<TArgs>* clone() const
+	{
+		return new FunctionPriorityDelegate(*this);
+	}
+
+	void disable()
+	{
+		Mutex::ScopedLock lock(_mutex);
+		_function = 0;
+	}
+
+protected:
+	NotifyFunction _function;
+	Mutex _mutex;
+
+private:
+	FunctionPriorityDelegate();
+};
+
+
+template <>
+class FunctionPriorityDelegate<void, true, true>: public AbstractPriorityDelegate<void>
+	/// Wraps a freestanding function or static member function
+	/// for use as a PriorityDelegate.
+{
+public:
+	typedef void (*NotifyFunction)(const void*);
+
+	FunctionPriorityDelegate(NotifyFunction function, int prio):
+		AbstractPriorityDelegate<void>(prio),
+		_function(function)
+	{
+	}
+
+	FunctionPriorityDelegate(const FunctionPriorityDelegate& delegate):
+		AbstractPriorityDelegate<void>(delegate),
+		_function(delegate._function)
+	{
+	}
+
+	FunctionPriorityDelegate& operator = (const FunctionPriorityDelegate& delegate)
+	{
+		if (&delegate != this)
+		{
+			this->_function = delegate._function;
+			this->_priority = delegate._priority;
+		}
+		return *this;
+	}
+
+	~FunctionPriorityDelegate()
+	{
+	}
+
+	bool notify(const void* sender)
+	{
+		Mutex::ScopedLock lock(_mutex);
+		if (_function)
+		{
+			(*_function)(sender);
+			return true;
+		}
+		else return false;
+	}
+
+	bool equals(const AbstractDelegate<void>& other) const
+	{
+		const FunctionPriorityDelegate* pOtherDelegate = dynamic_cast<const FunctionPriorityDelegate*>(other.unwrap());
+		return pOtherDelegate && this->priority() == pOtherDelegate->priority() && _function == pOtherDelegate->_function;
+	}
+
+	AbstractDelegate<void>* clone() const
+	{
+		return new FunctionPriorityDelegate(*this);
+	}
+
+	void disable()
+	{
+		Mutex::ScopedLock lock(_mutex);
+		_function = 0;
+	}
+
+protected:
+	NotifyFunction _function;
+	Mutex _mutex;
+
+private:
+	FunctionPriorityDelegate();
+};
+
+
+template <>
+class FunctionPriorityDelegate<void, true, false>: public AbstractPriorityDelegate<void>
+{
+public:
+	typedef void (*NotifyFunction)(void*);
+
+	FunctionPriorityDelegate(NotifyFunction function, int prio):
+		AbstractPriorityDelegate<void>(prio),
+		_function(function)
+	{
+	}
+
+	FunctionPriorityDelegate(const FunctionPriorityDelegate& delegate):
+		AbstractPriorityDelegate<void>(delegate),
+		_function(delegate._function)
+	{
+	}
+
+	FunctionPriorityDelegate& operator = (const FunctionPriorityDelegate& delegate)
+	{
+		if (&delegate != this)
+		{
+			this->_function = delegate._function;
+			this->_priority = delegate._priority;
+		}
+		return *this;
+	}
+
+	~FunctionPriorityDelegate()
+	{
+	}
+
+	bool notify(const void* sender)
+	{
+		Mutex::ScopedLock lock(_mutex);
+		if (_function)
+		{
+			(*_function)(const_cast<void*>(sender));
+			return true;
+		}
+		else return false;
+	}
+
+	bool equals(const AbstractDelegate<void>& other) const
+	{
+		const FunctionPriorityDelegate* pOtherDelegate = dynamic_cast<const FunctionPriorityDelegate*>(other.unwrap());
+		return pOtherDelegate && this->priority() == pOtherDelegate->priority() && _function == pOtherDelegate->_function;
+	}
+
+	AbstractDelegate<void>* clone() const
+	{
+		return new FunctionPriorityDelegate(*this);
+	}
+
+	void disable()
+	{
+		Mutex::ScopedLock lock(_mutex);
+		_function = 0;
+	}
+
+protected:
+	NotifyFunction _function;
+	Mutex _mutex;
+
+private:
+	FunctionPriorityDelegate();
+};
+
+
+template <>
+class FunctionPriorityDelegate<void, false>: public AbstractPriorityDelegate<void>
+{
+public:
+	typedef void (*NotifyFunction)();
+
+	FunctionPriorityDelegate(NotifyFunction function, int prio):
+		AbstractPriorityDelegate<void>(prio),
+		_function(function)
+	{
+	}
+
+	FunctionPriorityDelegate(const FunctionPriorityDelegate& delegate):
+		AbstractPriorityDelegate<void>(delegate),
+		_function(delegate._function)
+	{
+	}
+
+	FunctionPriorityDelegate& operator = (const FunctionPriorityDelegate& delegate)
+	{
+		if (&delegate != this)
+		{
+			this->_function = delegate._function;
+			this->_priority = delegate._priority;
+		}
+		return *this;
+	}
+
+	~FunctionPriorityDelegate()
+	{
+	}
+
+	bool notify(const void* sender)
+	{
+		Mutex::ScopedLock lock(_mutex);
+		if (_function)
+		{
+			(*_function)();
+			return true;
+		}
+		else return false;
+	}
+
+	bool equals(const AbstractDelegate<void>& other) const
+	{
+		const FunctionPriorityDelegate* pOtherDelegate = dynamic_cast<const FunctionPriorityDelegate*>(other.unwrap());
+		return pOtherDelegate && this->priority() == pOtherDelegate->priority() && _function == pOtherDelegate->_function;
+	}
+
+	AbstractDelegate<void>* clone() const
+	{
+		return new FunctionPriorityDelegate(*this);
+	}
+
+	void disable()
+	{
+		Mutex::ScopedLock lock(_mutex);
+		_function = 0;
+	}
+
+protected:
+	NotifyFunction _function;
+	Mutex _mutex;
+
+private:
+	FunctionPriorityDelegate();
+};
+
+
+} // namespace Poco
+
+
+#endif // Foundation_FunctionPriorityDelegate_INCLUDED