From 5d7cd526e84d903f34e5ef73f9f33f6a7c5c4736 Mon Sep 17 00:00:00 2001
From: Cameron Cawley
Date: Wed, 10 Apr 2019 23:16:49 +0100
Subject: ANDROID: Add a pthreads-based mutex manager

---
 backends/mutex/pthread/pthread-mutex.cpp | 70 ++++++++++++++++++++++++++++++++
 backends/mutex/pthread/pthread-mutex.h   | 40 ++++++++++++++++++
 2 files changed, 110 insertions(+)
 create mode 100644 backends/mutex/pthread/pthread-mutex.cpp
 create mode 100644 backends/mutex/pthread/pthread-mutex.h

(limited to 'backends/mutex/pthread')

diff --git a/backends/mutex/pthread/pthread-mutex.cpp b/backends/mutex/pthread/pthread-mutex.cpp
new file mode 100644
index 0000000000..e82d7db2b7
--- /dev/null
+++ b/backends/mutex/pthread/pthread-mutex.cpp
@@ -0,0 +1,70 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 2
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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.
+ *
+ */
+
+#define FORBIDDEN_SYMBOL_EXCEPTION_time_h
+
+#include "common/scummsys.h"
+
+#if defined(__ANDROID__) || defined(IPHONE)
+
+#include "backends/mutex/pthread/pthread-mutex.h"
+
+#include <pthread.h>
+
+
+OSystem::MutexRef PthreadMutexManager::createMutex() {
+	pthread_mutexattr_t attr;
+
+	pthread_mutexattr_init(&attr);
+	pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+
+	pthread_mutex_t *mutex = new pthread_mutex_t;
+
+	if (pthread_mutex_init(mutex, &attr) != 0) {
+		warning("pthread_mutex_init() failed");
+		delete mutex;
+		return NULL;
+	}
+
+	return (OSystem::MutexRef)mutex;
+}
+
+void PthreadMutexManager::lockMutex(OSystem::MutexRef mutex) {
+	if (pthread_mutex_lock((pthread_mutex_t *)mutex) != 0)
+		warning("pthread_mutex_lock() failed");
+}
+
+void PthreadMutexManager::unlockMutex(OSystem::MutexRef mutex) {
+	if (pthread_mutex_unlock((pthread_mutex_t *)mutex) != 0)
+		warning("pthread_mutex_unlock() failed");
+}
+
+void PthreadMutexManager::deleteMutex(OSystem::MutexRef mutex) {
+	pthread_mutex_t *m = (pthread_mutex_t *)mutex;
+
+	if (pthread_mutex_destroy(m) != 0)
+		warning("pthread_mutex_destroy() failed");
+	else
+		delete m;
+}
+
+#endif
diff --git a/backends/mutex/pthread/pthread-mutex.h b/backends/mutex/pthread/pthread-mutex.h
new file mode 100644
index 0000000000..b3a73b2968
--- /dev/null
+++ b/backends/mutex/pthread/pthread-mutex.h
@@ -0,0 +1,40 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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 2
+ * 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU 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 BACKENDS_MUTEX_PTHREAD_H
+#define BACKENDS_MUTEX_PTHREAD_H
+
+#include "backends/mutex/mutex.h"
+
+/**
+ * pthreads mutex manager
+ */
+class PthreadMutexManager : public MutexManager {
+public:
+	virtual OSystem::MutexRef createMutex();
+	virtual void lockMutex(OSystem::MutexRef mutex);
+	virtual void unlockMutex(OSystem::MutexRef mutex);
+	virtual void deleteMutex(OSystem::MutexRef mutex);
+};
+
+
+#endif
-- 
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