SemaphoreRights SemaphoreRights SemaphoreRights SemaphoreRights Enum

Definición

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

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

public enum class SemaphoreRights
[System.Flags]
[System.Runtime.InteropServices.ComVisible(false)]
[System.Security.SecurityCritical]
public enum SemaphoreRights
type SemaphoreRights = 
Public Enum SemaphoreRights
Herencia
SemaphoreRightsSemaphoreRightsSemaphoreRightsSemaphoreRights
Atributos

Campos

ChangePermissions ChangePermissions ChangePermissions ChangePermissions 262144

Derecho para cambiar las reglas de auditoría y de seguridad asociadas a un semáforo con nombre.The right to change the security and audit rules associated with a named semaphore.

Delete Delete Delete Delete 65536

Derecho para eliminar un semáforo con nombre.The right to delete a named semaphore.

FullControl FullControl FullControl FullControl 2031619

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

Modify Modify Modify Modify 2

Derecho para liberar un semáforo con nombre.The right to release a named semaphore.

ReadPermissions ReadPermissions ReadPermissions ReadPermissions 131072

Derecho para abrir y copiar las reglas de acceso y de auditoría de un semáforo con nombre.The right to open and copy the access rules and audit rules for a named semaphore.

Synchronize Synchronize Synchronize Synchronize 1048576

Derecho para esperar un semáforo con nombre.The right to wait on a named semaphore.

TakeOwnership TakeOwnership TakeOwnership TakeOwnership 524288

Derecho para cambiar el propietario de un semáforo con nombre.The right to change the owner of a named semaphore.

Ejemplos

En el ejemplo de código siguiente se muestra el uso de SemaphoreRights valores al crear y usar SemaphoreAccessRule objetos.The following code example demonstrates the use of SemaphoreRights values when creating and using SemaphoreAccessRule objects. El ejemplo se crea un SemaphoreSecurity objeto, agrega las reglas que conceden y deniegan derechos distintos para el usuario actual y muestra el par de reglas resultante.The example creates a SemaphoreSecurity 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 Semaphore objeto; vea SemaphoreSecurity, Semaphore.GetAccessControl método, y Semaphore.SetAccessControl.This example does not attach the security object to an Semaphore object; see SemaphoreSecurity, Semaphore.GetAccessControl method, and Semaphore.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.
        SemaphoreSecurity mSec = new SemaphoreSecurity();

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

        // Add a rule that denies the current user the 
        // right to change permissions on the semaphore.
        rule = new SemaphoreAccessRule(user, 
            SemaphoreRights.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 semaphore. This rule
        // is merged with the existing Allow rule.
        rule = new SemaphoreAccessRule(user, 
            SemaphoreRights.ReadPermissions, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

        ShowSecurity(mSec);
    }

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

        foreach(SemaphoreAccessRule 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.SemaphoreRights);
            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 SemaphoreSecurity()

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

        ' Add a rule that denies the current user the 
        ' right to change permissions on the semaphore.
        rule = New SemaphoreAccessRule(user, _
            SemaphoreRights.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 semaphore. This 
        ' rule is merged with the existing Allow rule.
        rule = New SemaphoreAccessRule(user, _
            SemaphoreRights.ReadPermissions, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

        ShowSecurity(mSec)

    End Sub 

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

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

            Console.WriteLine("        User: {0}", ar.IdentityReference)
            Console.WriteLine("        Type: {0}", ar.AccessControlType)
            Console.WriteLine("      Rights: {0}", ar.SemaphoreRights)
            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 SemaphoreRights enumeración para especificar el control de acceso de derechos cuando creas SemaphoreSecurity objetos.Use the SemaphoreRights enumeration to specify access control rights when you create SemaphoreSecurity objects. Para aplicar derechos de acceso a un semáforo de sistema con nombre, use SemaphoreSecurity los objetos que tienen el Semaphore.Semaphore(Int32, Int32, String, Boolean, SemaphoreSecurity) constructor y el Semaphore.SetAccessControl método.To apply access rights to a named system semaphore, use SemaphoreSecurity objects with the Semaphore.Semaphore(Int32, Int32, String, Boolean, SemaphoreSecurity) constructor and the Semaphore.SetAccessControl method.

Para los valores numéricos de los derechos de acceso de Windows subyacentes, vea derechos de acceso (Windows) y seguridad de objetos de sincronización en MSDN Library.For the numeric values of the underlying Windows access rights, see Synchronization Object Security and Access Rights (Windows) in the MSDN Library.

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: