MutexRights MutexRights MutexRights MutexRights Enum

Definición

Especifica los derechos de control de acceso que se pueden aplicar a los objetos de exclusión mutua de sistema con nombre.Specifies the access control rights that can be applied to named system mutex objects.

Esta enumeración tiene el atributo FlagsAttribute, que permite una combinación bit a bit de sus valores de miembro.

public enum class MutexRights
[System.Flags]
[System.Security.SecurityCritical]
public enum MutexRights
type MutexRights = 
Public Enum MutexRights
Herencia
Atributos

Campos

ChangePermissions ChangePermissions ChangePermissions ChangePermissions 262144

Derecho para cambiar la seguridad y las reglas de auditoría asociadas a una exclusión mutua con nombre.The right to change the security and audit rules associated with a named mutex.

Delete Delete Delete Delete 65536

Derecho para eliminar una exclusión mutua con nombre.The right to delete a named mutex.

FullControl FullControl FullControl FullControl 2031617

Derecho para ejercer el control total sobre una exclusión mutua con nombre y modificar sus reglas de acceso y de auditoría.The right to exert full control over a named mutex, and to modify its access rules and audit rules.

Modify Modify Modify Modify 1

Derecho para liberar una exclusión mutua con nombre.The right to release a named mutex.

ReadPermissions ReadPermissions ReadPermissions ReadPermissions 131072

Derecho para abrir y copiar las reglas de acceso y de auditoría de una exclusión mutua con nombre.The right to open and copy the access rules and audit rules for a named mutex.

Synchronize Synchronize Synchronize Synchronize 1048576

Derecho para esperar en una exclusión mutua con nombre.The right to wait on a named mutex.

TakeOwnership TakeOwnership TakeOwnership TakeOwnership 524288

Derecho para cambiar el propietario de una exclusión mutua con nombre.The right to change the owner of a named mutex.

Ejemplos

En el ejemplo de código siguiente se muestra el uso de MutexRights valores al crear y usar MutexAccessRule objetos.The following code example demonstrates the use of MutexRights values when creating and using MutexAccessRule objects. El ejemplo se crea un MutexSecurity objeto, agrega las reglas que conceden y deniegan derechos distintos para el usuario actual y muestra el par de reglas resultante.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. En el ejemplo, a continuación, permite nuevos derechos para el usuario actual y muestra el resultado, que muestra que los nuevos derechos se combinan con las existentes AccessControlType.Allow regla.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.

Nota

En este ejemplo no se adjunta el objeto de seguridad a un Mutex objeto; vea MutexSecurity, Mutex.GetAccessControl método, y Mutex.SetAccessControl.This 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
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

Comentarios

Use la MutexRights enumeración para especificar el control de acceso de derechos cuando creas MutexSecurity objetos.Use the MutexRights enumeration to specify access control rights when you create MutexSecurity objects. Para aplicar derechos de acceso a una exclusión mutua del sistema con nombre, use MutexSecurity los objetos que tienen el Mutex(Boolean, String, Boolean, MutexSecurity) constructor y el Mutex.SetAccessControl método.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.

Nota

Seguridad en objetos de sincronización no es compatible con Windows 98 o Windows Millennium Edition.Security on synchronization objects is not supported for Windows 98 or Windows Millennium Edition.

Se aplica a

Consulte también: