2014-02-10 02:10:30 +01:00
|
|
|
/*************************************************************************/
|
|
|
|
/* mutex.h */
|
|
|
|
/*************************************************************************/
|
|
|
|
/* This file is part of: */
|
|
|
|
/* GODOT ENGINE */
|
2017-08-27 14:16:55 +02:00
|
|
|
/* https://godotengine.org */
|
2014-02-10 02:10:30 +01:00
|
|
|
/*************************************************************************/
|
2020-01-01 11:16:22 +01:00
|
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
|
|
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
|
2014-02-10 02:10:30 +01:00
|
|
|
/* */
|
|
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
|
|
/* a copy of this software and associated documentation files (the */
|
|
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
|
|
/* the following conditions: */
|
|
|
|
/* */
|
|
|
|
/* The above copyright notice and this permission notice shall be */
|
|
|
|
/* included in all copies or substantial portions of the Software. */
|
|
|
|
/* */
|
|
|
|
/* 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 AND NONINFRINGEMENT.*/
|
|
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
/*************************************************************************/
|
2018-01-05 00:50:27 +01:00
|
|
|
|
2014-02-10 02:10:30 +01:00
|
|
|
#ifndef MUTEX_H
|
|
|
|
#define MUTEX_H
|
|
|
|
|
2018-09-11 18:13:45 +02:00
|
|
|
#include "core/error_list.h"
|
2020-02-26 11:28:13 +01:00
|
|
|
#include "core/typedefs.h"
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2020-03-03 09:26:42 +01:00
|
|
|
#if !defined(NO_THREADS)
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2020-02-26 11:28:13 +01:00
|
|
|
#include <mutex>
|
|
|
|
|
|
|
|
template <class StdMutexT>
|
|
|
|
class MutexImpl {
|
|
|
|
mutable StdMutexT mutex;
|
2016-03-09 00:00:52 +01:00
|
|
|
|
2014-02-10 02:10:30 +01:00
|
|
|
public:
|
2020-02-26 11:28:13 +01:00
|
|
|
_ALWAYS_INLINE_ void lock() const {
|
|
|
|
mutex.lock();
|
|
|
|
}
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2020-02-26 11:28:13 +01:00
|
|
|
_ALWAYS_INLINE_ void unlock() const {
|
|
|
|
mutex.unlock();
|
|
|
|
}
|
2016-03-09 00:00:52 +01:00
|
|
|
|
2020-02-26 11:28:13 +01:00
|
|
|
_ALWAYS_INLINE_ Error try_lock() const {
|
|
|
|
return mutex.try_lock() ? OK : ERR_BUSY;
|
|
|
|
}
|
2014-02-10 02:10:30 +01:00
|
|
|
};
|
|
|
|
|
2020-02-26 11:28:13 +01:00
|
|
|
template <class MutexT>
|
2014-02-10 02:10:30 +01:00
|
|
|
class MutexLock {
|
2020-02-26 11:28:13 +01:00
|
|
|
const MutexT &mutex;
|
2014-02-10 02:10:30 +01:00
|
|
|
|
2017-03-05 16:44:50 +01:00
|
|
|
public:
|
2020-02-26 11:28:13 +01:00
|
|
|
_ALWAYS_INLINE_ explicit MutexLock(const MutexT &p_mutex) :
|
|
|
|
mutex(p_mutex) {
|
|
|
|
mutex.lock();
|
2017-03-05 16:44:50 +01:00
|
|
|
}
|
2020-02-26 11:28:13 +01:00
|
|
|
|
|
|
|
_ALWAYS_INLINE_ ~MutexLock() {
|
|
|
|
mutex.unlock();
|
2017-03-05 16:44:50 +01:00
|
|
|
}
|
2014-02-10 02:10:30 +01:00
|
|
|
};
|
|
|
|
|
2020-03-08 00:06:57 +01:00
|
|
|
using Mutex = MutexImpl<std::recursive_mutex>; // Recursive, for general use
|
|
|
|
using BinaryMutex = MutexImpl<std::mutex>; // Non-recursive, handle with care
|
|
|
|
|
|
|
|
extern template class MutexImpl<std::recursive_mutex>;
|
|
|
|
extern template class MutexImpl<std::mutex>;
|
|
|
|
extern template class MutexLock<MutexImpl<std::recursive_mutex> >;
|
|
|
|
extern template class MutexLock<MutexImpl<std::mutex> >;
|
|
|
|
|
2020-02-26 11:28:13 +01:00
|
|
|
#else
|
|
|
|
|
2020-03-08 00:06:57 +01:00
|
|
|
class FakeMutex {
|
|
|
|
|
|
|
|
FakeMutex(){};
|
|
|
|
};
|
|
|
|
|
|
|
|
template <class MutexT>
|
2020-02-26 11:28:13 +01:00
|
|
|
class MutexImpl {
|
|
|
|
public:
|
|
|
|
_ALWAYS_INLINE_ void lock() const {}
|
|
|
|
_ALWAYS_INLINE_ void unlock() const {}
|
|
|
|
_ALWAYS_INLINE_ Error try_lock() const { return OK; }
|
|
|
|
};
|
|
|
|
|
|
|
|
template <class MutexT>
|
|
|
|
class MutexLock {
|
|
|
|
public:
|
|
|
|
explicit MutexLock(const MutexT &p_mutex) {}
|
|
|
|
};
|
|
|
|
|
2020-03-08 00:06:57 +01:00
|
|
|
using Mutex = MutexImpl<FakeMutex>;
|
|
|
|
using BinaryMutex = MutexImpl<FakeMutex>; // Non-recursive, handle with care
|
2020-02-26 11:28:13 +01:00
|
|
|
|
2020-03-08 00:06:57 +01:00
|
|
|
#endif // !NO_THREADS
|
2020-02-26 11:28:13 +01:00
|
|
|
|
2014-02-10 02:10:30 +01:00
|
|
|
#endif
|