blob: 004e9528735d42e4f2a490b0af1d775b59f9c31b (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
using Microsoft.Win32.SafeHandles;
using System.Diagnostics;
using System.IO;
using System.Runtime.InteropServices;
namespace System.Threading
{
public sealed partial class Mutex
{
private void CreateMutexCore(bool initiallyOwned, string name, out bool createdNew)
{
if (name != null)
{
throw new PlatformNotSupportedException(SR.PlatformNotSupported_NamedSynchronizationPrimitives);
}
SafeWaitHandle = WaitSubsystem.NewMutex(initiallyOwned);
createdNew = true;
}
private static OpenExistingResult OpenExistingWorker(string name, out Mutex result)
{
throw new PlatformNotSupportedException(SR.PlatformNotSupported_NamedSynchronizationPrimitives);
}
public void ReleaseMutex()
{
// The field value is modifiable via the public <see cref="WaitHandle.SafeWaitHandle"/> property, save it locally
// to ensure that one instance is used in all places in this method
SafeWaitHandle waitHandle = _waitHandle;
if (waitHandle == null)
{
ThrowInvalidHandleException();
}
waitHandle.DangerousAddRef();
try
{
WaitSubsystem.ReleaseMutex(waitHandle.DangerousGetHandle());
}
finally
{
waitHandle.DangerousRelease();
}
}
}
}
|