MutexRights MutexRights MutexRights MutexRights Enum

定义

指定可应用于命名的系统 mutex 对象的访问控制权限。Specifies the access control rights that can be applied to named system mutex objects.

此枚举有一个 FlagsAttribute 属性,允许按位组合成员值。

public enum class MutexRights
[System.Flags]
[System.Security.SecurityCritical]
public enum MutexRights
type MutexRights = 
Public Enum MutexRights
继承
属性

字段

ChangePermissions ChangePermissions ChangePermissions ChangePermissions 262144

更改与命名的 mutex 关联的安全性和审核规则的权限。The right to change the security and audit rules associated with a named mutex.

Delete Delete Delete Delete 65536

删除命名的 mutex 的权限。The right to delete a named mutex.

FullControl FullControl FullControl FullControl 2031617

对某个命名的 mutex 进行完全控制和修改其访问规则和审核规则的权限。The right to exert full control over a named mutex, and to modify its access rules and audit rules.

Modify Modify Modify Modify 1

释放命名的 mutex 的权限。The right to release a named mutex.

ReadPermissions ReadPermissions ReadPermissions ReadPermissions 131072

打开并复制命名的 mutex 的访问规则和审核规则的权限。The right to open and copy the access rules and audit rules for a named mutex.

Synchronize Synchronize Synchronize Synchronize 1048576

在命名的 mutex 上等待的权限。The right to wait on a named mutex.

TakeOwnership TakeOwnership TakeOwnership TakeOwnership 524288

更改命名的 mutex 的所有者的权限。The right to change the owner of a named mutex.

示例

下面的代码示例演示如何在创建MutexRights和使用MutexAccessRule对象时使用值。The following code example demonstrates the use of MutexRights values when creating and using MutexAccessRule objects. 该示例创建一个MutexSecurity对象, 添加允许和拒绝当前用户的各种权限的规则, 并显示生成的规则对。The example creates an MutexSecurity object, adds rules that allow and deny various rights for the current user, and displays the resulting pair of rules. 然后, 该示例允许当前用户具有新权限, 并显示结果, 并显示新权限与现有AccessControlType.Allow规则合并。The example then allows new rights for the current user and displays the result, showing that the new rights are merged with the existing AccessControlType.Allow rule.

备注

此示例不会将安全对象附加Mutex到对象; 请参见MutexSecurityMutex.GetAccessControl方法和。 Mutex.SetAccessControlThis example does not attach the security object to a Mutex object; see MutexSecurity, Mutex.GetAccessControl method, and Mutex.SetAccessControl.

using System;
using System.Threading;
using System.Security.AccessControl;
using System.Security.Principal;

public class Example
{
    public static void Main()
    {
        // Create a string representing the current user.
        string user = Environment.UserDomainName + "\\" + 
            Environment.UserName;

        // Create a security object that grants no access.
        MutexSecurity mSec = new MutexSecurity();

        // Add a rule that grants the current user the 
        // right to enter or release the mutex.
        MutexAccessRule rule = new MutexAccessRule(user, 
            MutexRights.Synchronize | MutexRights.Modify, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        // Add a rule that denies the current user the 
        // right to change permissions on the mutex.
        rule = new MutexAccessRule(user, 
            MutexRights.ChangePermissions, 
            AccessControlType.Deny);
        mSec.AddAccessRule(rule);

        // Display the rules in the security object.
        ShowSecurity(mSec);

        // Add a rule that allows the current user the 
        // right to read permissions on the mutex. This rule
        // is merged with the existing Allow rule.
        rule = new MutexAccessRule(user, 
            MutexRights.ReadPermissions, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        ShowSecurity(mSec);
    }

    private static void ShowSecurity(MutexSecurity security)
    {
        Console.WriteLine("\r\nCurrent access rules:\r\n");

        foreach(MutexAccessRule ar in 
            security.GetAccessRules(true, true, typeof(NTAccount)))
        {
            Console.WriteLine("        User: {0}", ar.IdentityReference);
            Console.WriteLine("        Type: {0}", ar.AccessControlType);
            Console.WriteLine("      Rights: {0}", ar.MutexRights);
            Console.WriteLine();
        }
    }
}

/*This code example produces output similar to following:

Current access rules:

        User: TestDomain\TestUser
        Type: Deny
      Rights: ChangePermissions

        User: TestDomain\TestUser
        Type: Allow
      Rights: Modify, Synchronize


Current access rules:

        User: TestDomain\TestUser
        Type: Deny
      Rights: ChangePermissions

        User: TestDomain\TestUser
        Type: Allow
      Rights: Modify, ReadPermissions, Synchronize
 */
Imports System.Threading
Imports System.Security.AccessControl
Imports System.Security.Principal

Public Class Example

    Public Shared Sub Main()

        ' Create a string representing the current user.
        Dim user As String = Environment.UserDomainName _ 
            & "\" & Environment.UserName

        ' Create a security object that grants no access.
        Dim mSec As New MutexSecurity()

        ' Add a rule that grants the current user the 
        ' right to enter or release the mutex.
        Dim rule As New MutexAccessRule(user, _
            MutexRights.Synchronize _
            Or MutexRights.Modify, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ' Add a rule that denies the current user the 
        ' right to change permissions on the mutex.
        rule = New MutexAccessRule(user, _
            MutexRights.ChangePermissions, _
            AccessControlType.Deny)
        mSec.AddAccessRule(rule)

        ' Display the rules in the security object.
        ShowSecurity(mSec)

        ' Add a rule that allows the current user the 
        ' right to read permissions on the mutex. This rule
        ' is merged with the existing Allow rule.
        rule = New MutexAccessRule(user, _
            MutexRights.ReadPermissions, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ShowSecurity(mSec)

    End Sub 

    Private Shared Sub ShowSecurity(ByVal security As MutexSecurity)
        Console.WriteLine(vbCrLf & "Current access rules:" & vbCrLf)

        For Each ar As MutexAccessRule In _
            security.GetAccessRules(True, True, GetType(NTAccount))

            Console.WriteLine("        User: {0}", ar.IdentityReference)
            Console.WriteLine("        Type: {0}", ar.AccessControlType)
            Console.WriteLine("      Rights: {0}", ar.MutexRights)
            Console.WriteLine()
        Next

    End Sub
End Class 

'This code example produces output similar to following:
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Deny
'      Rights: ChangePermissions
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: Modify, Synchronize
'
'
'Current access rules:
'
'        User: TestDomain\TestUser
'        Type: Deny
'      Rights: ChangePermissions
'
'        User: TestDomain\TestUser
'        Type: Allow
'      Rights: Modify, ReadPermissions, Synchronize

注解

在创建MutexSecurity对象时, 使用枚举指定访问控制权限。MutexRightsUse the MutexRights enumeration to specify access control rights when you create MutexSecurity objects. 若要将访问权限应用于已命名的系统MutexSecurity互斥体, Mutex(Boolean, String, Boolean, MutexSecurity)请将对象Mutex.SetAccessControl与构造函数和方法一起使用。To apply access rights to a named system mutex, use MutexSecurity objects with the Mutex(Boolean, String, Boolean, MutexSecurity) constructor and the Mutex.SetAccessControl method.

备注

Windows 98 或 Windows Millennium Edition 不支持同步对象的安全性。Security on synchronization objects is not supported for Windows 98 or Windows Millennium Edition.

适用于

另请参阅