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authorLoic Blot <loic.blot@unix-experience.fr>2018-03-23 22:12:42 +0100
committerLoic Blot <loic.blot@unix-experience.fr>2018-03-23 22:12:48 +0100
commiteab652fd52b7b806b9414a26a0bf5348df4282f6 (patch)
tree38395781f2e1dffd100ac971843b52556fa0ee94 /src/irr_aabb3d.h
parent9293d8e2715f3e883fee4c0ed617636a785f20d1 (diff)
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Fix some gcc 7.3 reported warnings
``` src/client/joystick_controller.h:85:2: warning: duplicate 'virtual' declaration specifier [-Wduplicate-decl-specifier] virtual bool isTriggered(const irr::SEvent::SJoystickEvent &ev) const; /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../include/c++/7.3.1/ext/new_allocator.h:140:22: warning: destructor called on non-final 'JoystickAxisCmb' that has virtual functions but non-virtual destructor [-Wdelete-non-virtual-dtor] destroy(_Up* __p) { __p->~_Up(); } /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/7.3.1/../../../../include/c++/7.3.1/ext/new_allocator.h:140:22: warning: destructor called on non-final 'JoystickButtonCmb' that has virtual functions but non-virtual destructor [-Wdelete-non-virtual-dtor] destroy(_Up* __p) { __p->~_Up(); } ```
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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

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 Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#ifndef UTIL_THREAD_HEADER
#define UTIL_THREAD_HEADER

#include "../irrlichttypes.h"
#include "../threading/thread.h"
#include "../threading/mutex.h"
#include "../threading/mutex_auto_lock.h"
#include "porting.h"
#include "log.h"

template<typename T>
class MutexedVariable {
public:
	MutexedVariable(T value):
		m_value(value)
	{}

	T get()
	{
		MutexAutoLock lock(m_mutex);
		return m_value;
	}

	void set(T value)
	{
		MutexAutoLock lock(m_mutex);
		m_value = value;
	}

	// You'll want to grab this in a SharedPtr
	MutexAutoLock *getLock()
	{
		return new MutexAutoLock(m_mutex);
	}

	// You pretty surely want to grab the lock when accessing this
	T m_value;

private:
	Mutex m_mutex;
};

/*
	A single worker thread - multiple client threads queue framework.
*/
template<typename Key, typename T, typename Caller, typename CallerData>
class GetResult {
public:
	Key key;
	T item;
	std::pair<Caller, CallerData> caller;
};

template<typename Key, typename T, typename Caller, typename CallerData>
class ResultQueue : public MutexedQueue<GetResult<Key, T, Caller, CallerData> > {
};

template<typename Caller, typename Data, typename Key, typename T>
class CallerInfo {
public:
	Caller caller;
	Data data;
	ResultQueue<Key, T, Caller, Data> *dest;
};

template<typename Key, typename T, typename Caller, typename CallerData>
class GetRequest {
public:
	GetRequest() {}
	~GetRequest() {}

	GetRequest(Key a_key) {
		key = a_key;
	}

	Key key;
	std::list<CallerInfo<Caller, CallerData, Key, T> > callers;
};

/**
 * Notes for RequestQueue usage
 * @param Key unique key to identify a request for a specific resource
 * @param T ?
 * @param Caller unique id of calling thread
 * @param CallerData data passed back to caller
 */
template<typename Key, typename T, typename Caller, typename CallerData>
class RequestQueue {
public:
	bool empty()
	{
		return m_queue.empty();
	}

	void add(Key key, Caller caller, CallerData callerdata,
		ResultQueue<Key, T, Caller, CallerData> *dest)
	{
		typename std::deque<GetRequest<Key, T, Caller, CallerData> >::iterator i;
		typename std::list<CallerInfo<Caller, CallerData, Key, T> >::iterator j;

		{
			MutexAutoLock lock(m_queue.getMutex());

			/*
				If the caller is already on the list, only update CallerData
			*/
			for (i = m_queue.getQueue().begin(); i != m_queue.getQueue().end(); ++i) {
				GetRequest<Key, T, Caller, CallerData> &request = *i;
				if (request.key != key)
					continue;

				for (j = request.callers.begin(); j != request.callers.end(); ++j) {
					CallerInfo<Caller, CallerData, Key, T> &ca = *j;
					if (ca.caller == caller) {
						ca.data = callerdata;
						return;
					}
				}

				CallerInfo<Caller, CallerData, Key, T> ca;
				ca.caller = caller;
				ca.data = callerdata;
				ca.dest = dest;
				request.callers.push_back(ca);
				return;
			}
		}

		/*
			Else add a new request to the queue
		*/

		GetRequest<Key, T, Caller, CallerData> request;
		request.key = key;
		CallerInfo<Caller, CallerData, Key, T> ca;
		ca.caller = caller;
		ca.data = callerdata;
		ca.dest = dest;
		request.callers.push_back(ca);

		m_queue.push_back(request);
	}

	GetRequest<Key, T, Caller, CallerData> pop(unsigned int timeout_ms)
	{
		return m_queue.pop_front(timeout_ms);
	}

	GetRequest<Key, T, Caller, CallerData> pop()
	{
		return m_queue.pop_frontNoEx();
	}

	void pushResult(GetRequest<Key, T, Caller, CallerData> req, T res)
	{
		for (typename std::list<CallerInfo<Caller, CallerData, Key, T> >::iterator
				i = req.callers.begin();
				i != req.callers.end(); ++i) {
			CallerInfo<Caller, CallerData, Key, T> &ca = *i;

			GetResult<Key,T,Caller,CallerData> result;

			result.key = req.key;
			result.item = res;
			result.caller.first = ca.caller;
			result.caller.second = ca.data;