1 files changed, 83 insertions, 0 deletions
diff --git a/src/threading/mutex.cpp b/src/threading/mutex.cpp
new file mode 100644
index 000000000..eb1c7d61d
--- /dev/null
+++ b/src/threading/mutex.cpp
@@ -0,0 +1,83 @@
+/*
+This file is a part of the JThread package, which contains some object-
+oriented thread wrappers for different thread implementations.
+
+Copyright (c) 2000-2006  Jori Liesenborgs (jori.liesenborgs@gmail.com)
+
+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.
+*/
+
+// Windows std::mutex is much slower than the critical section API
+#if __cplusplus < 201103L || defined(_WIN32)
+
+#include "threading/mutex.h"
+
+#ifndef _WIN32
+	#include <cassert>
+#endif
+
+#define UNUSED(expr) do { (void)(expr); } while (0)
+
+
+Mutex::Mutex()
+{
+#ifdef _WIN32
+	InitializeCriticalSection(&mutex);
+#else
+	int ret = pthread_mutex_init(&mutex, NULL);
+	assert(!ret);
+	UNUSED(ret);
+#endif
+}
+
+Mutex::~Mutex()
+{
+#ifdef _WIN32
+	DeleteCriticalSection(&mutex);
+#else
+	int ret = pthread_mutex_destroy(&mutex);
+	assert(!ret);
+	UNUSED(ret);
+#endif
+}
+
+void Mutex::lock()
+{
+#ifdef _WIN32
+	EnterCriticalSection(&mutex);
+#else
+	int ret = pthread_mutex_lock(&mutex);
+	assert(!ret);
+	UNUSED(ret);
+#endif
+}
+
+void Mutex::unlock()
+{
+#ifdef _WIN32
+	LeaveCriticalSection(&mutex);
+#else
+	int ret = pthread_mutex_unlock(&mutex);
+	assert(!ret);
+	UNUSED(ret);
+#endif
+}
+
+#endif
+