1 files changed, 96 insertions, 0 deletions
diff --git a/src/chips/common/mutex.hpp b/src/chips/common/mutex.hpp
new file mode 100644
index 0000000..53d7b72
--- /dev/null
+++ b/src/chips/common/mutex.hpp
@@ -0,0 +1,96 @@
+/*
+ * libADLMIDI is a free Software MIDI synthesizer library with OPL3 emulation
+ *
+ * Original ADLMIDI code: Copyright (c) 2010-2014 Joel Yliluoma <bisqwit@iki.fi>
+ * ADLMIDI Library API:   Copyright (c) 2015-2019 Vitaly Novichkov <admin@wohlnet.ru>
+ *
+ * Library is based on the ADLMIDI, a MIDI player for Linux and Windows with OPL3 emulation:
+ * http://iki.fi/bisqwit/source/adlmidi.html
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#if !defined(_WIN32)
+#include <pthread.h>
+typedef pthread_mutex_t MutexNativeObject;
+#else
+#include <windows.h>
+typedef CRITICAL_SECTION MutexNativeObject;
+#endif
+
+class Mutex
+{
+public:
+    Mutex();
+    ~Mutex();
+    void lock();
+    void unlock();
+private:
+    MutexNativeObject m;
+    Mutex(const Mutex &);
+    Mutex &operator=(const Mutex &);
+};
+
+class MutexHolder
+{
+public:
+    explicit MutexHolder(Mutex &m) : m(m) { m.lock(); }
+    ~MutexHolder() { m.unlock(); }
+private:
+    Mutex &m;
+    MutexHolder(const MutexHolder &);
+    MutexHolder &operator=(const MutexHolder &);
+};
+
+#if !defined(_WIN32)
+inline Mutex::Mutex()
+{
+    pthread_mutex_init(&m, NULL);
+}
+
+inline Mutex::~Mutex()
+{
+    pthread_mutex_destroy(&m);
+}
+
+inline void Mutex::lock()
+{
+    pthread_mutex_lock(&m);
+}
+
+inline void Mutex::unlock()
+{
+    pthread_mutex_unlock(&m);
+}
+#else
+inline Mutex::Mutex()
+{
+    InitializeCriticalSection(&m);
+}
+
+inline Mutex::~Mutex()
+{
+    DeleteCriticalSection(&m);
+}
+
+inline void Mutex::lock()
+{
+    EnterCriticalSection(&m);
+}
+
+inline void Mutex::unlock()
+{
+    LeaveCriticalSection(&m);
+}
+#endif