SemaphoreRights SemaphoreRights SemaphoreRights SemaphoreRights Enum

Définition

Spécifie les droits de contrôle d'accès qui peuvent s'appliquer aux objets d'un sémaphore système nommé.Specifies the access control rights that can be applied to named system semaphore objects.

Cette énumération a un attribut FlagsAttribute qui permet une combinaison au niveau du bit de ses valeurs membres.

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

Champs

ChangePermissions ChangePermissions ChangePermissions ChangePermissions 262144

Droit de modifier les règles de sécurité et d'audit associées à un sémaphore nommé.The right to change the security and audit rules associated with a named semaphore.

Delete Delete Delete Delete 65536

Droit de supprimer un sémaphore nommé.The right to delete a named semaphore.

FullControl FullControl FullControl FullControl 2031619

Droit d'exercer un contrôle total sur un sémaphore nommé et d'en modifier les règles d'accès et d'audit.The right to exert full control over a named semaphore, and to modify its access rules and audit rules.

Modify Modify Modify Modify 2

Droit de libérer un sémaphore nommé.The right to release a named semaphore.

ReadPermissions ReadPermissions ReadPermissions ReadPermissions 131072

Droit d'ouvrir et de copier les règles d'accès et d'audit pour un sémaphore nommé.The right to open and copy the access rules and audit rules for a named semaphore.

Synchronize Synchronize Synchronize Synchronize 1048576

Droit de servir un sémaphore nommé.The right to wait on a named semaphore.

TakeOwnership TakeOwnership TakeOwnership TakeOwnership 524288

Droit de modifier le propriétaire d'un sémaphore nommé.The right to change the owner of a named semaphore.

Exemples

L’exemple de code suivant illustre l’utilisation de SemaphoreRights lors de la création et l’utilisation des valeurs SemaphoreAccessRule objets.The following code example demonstrates the use of SemaphoreRights values when creating and using SemaphoreAccessRule objects. L’exemple crée un SemaphoreSecurity objet, ajoute des règles qui accordent et refusent divers droits à l’utilisateur actuel et affiche la paire de règles résultante.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. L’exemple permet de nouveaux droits de l’utilisateur actuel, puis affiche le résultat, indiquant que les nouveaux droits sont fusionnés avec le AccessControlType.Allow règle.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.

Notes

Cet exemple ne s’attache pas l’objet de sécurité à un Semaphore objet ; consultez SemaphoreSecurity, Semaphore.GetAccessControl (méthode), et 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

Remarques

Utilisez le SemaphoreRights des droits d’énumération pour spécifier le contrôle d’accès lorsque vous créez SemaphoreSecurity objets.Use the SemaphoreRights enumeration to specify access control rights when you create SemaphoreSecurity objects. Pour appliquer des droits d’accès à un sémaphore système nommé, utilisez SemaphoreSecurity objets avec le Semaphore.Semaphore(Int32, Int32, String, Boolean, SemaphoreSecurity) constructeur et le Semaphore.SetAccessControl (méthode).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.

Pour les valeurs numériques des droits d’accès Windows sous-jacent, consultez sécurité des objets de synchronisation et les droits d’accès (Windows) dans MSDN Library.For the numeric values of the underlying Windows access rights, see Synchronization Object Security and Access Rights (Windows) in the MSDN Library.

Notes

Sécurité sur les objets de synchronisation n’est pas prise en charge pour Windows 98 ou Windows Millennium Edition.Security on synchronization objects is not supported for Windows 98 or Windows Millennium Edition.

S’applique à

Voir aussi