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/* ****************************************************************************
*
* Copyright (c) Microsoft Corporation.
*
* This source code is subject to terms and conditions of the Microsoft Public License. A
* copy of the license can be found in the License.html file at the root of this distribution. If
* you cannot locate the Microsoft Public License, please send an email to
* ironruby@microsoft.com. By using this source code in any fashion, you are agreeing to be bound
* by the terms of the Microsoft Public License.
*
* You must not remove this notice, or any other, from this software.
*
*
* ***************************************************************************/
using System;
using Microsoft.Scripting.Runtime;
using System.Threading;
using Microsoft.Scripting.Actions;
using IronRuby.Runtime;
using IronRuby.Runtime.Calls;
namespace IronRuby.StandardLibrary.Threading {
// TODO:
// Ruby mutex is not recursive.
// It can be unlocked from non-owning thread.
[RubyClass("Mutex")]
public class RubyMutex {
private readonly object/*!*/ _mutex;
// TODO: this is not precise.
private bool _isLocked;
internal object Mutex { get { return _mutex; } }
public RubyMutex() {
_mutex = new object();
}
[RubyMethod("locked?")]
public static bool IsLocked(RubyMutex/*!*/ self) {
return self._isLocked;
}
[RubyMethod("try_lock")]
public static bool TryLock(RubyMutex/*!*/ self) {
return self._isLocked = Monitor.TryEnter(self._mutex);
}
[RubyMethod("lock")]
public static RubyMutex/*!*/ Lock(RubyMutex/*!*/ self) {
Monitor.Enter(self._mutex);
self._isLocked = true;
return self;
}
[RubyMethod("unlock")]
public static RubyMutex/*!*/ Unlock(RubyMutex/*!*/ self) {
self._isLocked = false;
Monitor.Exit(self._mutex);
return self;
}
[RubyMethod("synchronize")]
public static object Synchronize(BlockParam criticalSection, RubyMutex/*!*/ self) {
lock (self._mutex) {
self._isLocked = true;
try {
object result;
criticalSection.Yield(out result);
return result;
} finally {
self._isLocked = false;
}
}
}
[RubyMethod("exclusive_unlock")]
public static bool ExclusiveUnlock(BlockParam criticalSection, RubyMutex/*!*/ self) {
// TODO:
throw new NotImplementedException();
}
// TODO:
// "marshal_load"
// "marshal_dump"
}
}
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