//
// ErrorHandler.cpp
//
// $Id: //poco/1.4/Foundation/src/ErrorHandler.cpp#1 $
//
// Library: Foundation
// Package: Threading
// Module:  ErrorHandler
//
// Copyright (c) 2005-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
// 
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//


#include "Poco/ErrorHandler.h"
#include "Poco/SingletonHolder.h"


namespace Poco {


ErrorHandler* ErrorHandler::_pHandler = ErrorHandler::defaultHandler();
FastMutex ErrorHandler::_mutex;


ErrorHandler::ErrorHandler()
{
}


ErrorHandler::~ErrorHandler()
{
}


void ErrorHandler::exception(const Exception& exc)
{
	poco_debugger_msg(exc.what());
}

	
void ErrorHandler::exception(const std::exception& exc)
{
	poco_debugger_msg(exc.what());
}


void ErrorHandler::exception()
{
	poco_debugger_msg("unknown exception");
}


void ErrorHandler::handle(const Exception& exc)
{
	FastMutex::ScopedLock lock(_mutex);
	try
	{
		_pHandler->exception(exc);
	}
	catch (...)
	{
	}
}

	
void ErrorHandler::handle(const std::exception& exc)
{
	FastMutex::ScopedLock lock(_mutex);
	try
	{
		_pHandler->exception(exc);
	}
	catch (...)
	{
	}
}


void ErrorHandler::handle()
{
	FastMutex::ScopedLock lock(_mutex);
	try
	{
		_pHandler->exception();
	}
	catch (...)
	{
	}
}


ErrorHandler* ErrorHandler::set(ErrorHandler* pHandler)
{
	poco_check_ptr(pHandler);

	FastMutex::ScopedLock lock(_mutex);
	ErrorHandler* pOld = _pHandler;
	_pHandler = pHandler;
	return pOld;
}


ErrorHandler* ErrorHandler::defaultHandler()
{
	// NOTE: Since this is called to initialize the static _pHandler
	// variable, sh has to be a local static, otherwise we run
	// into static initialization order issues.
	static SingletonHolder<ErrorHandler> sh;
	return sh.get();
}


} // namespace Poco
