EventWaitHandleRights Enum

Definisi

Ruang nama:

System.Security.AccessControl

Rakitan:

System.Threading.AccessControl.dll

Paket:

System.Threading.AccessControl v9.0.0-preview.3.24172.9

Sumber:

EventWaitHandleSecurity.cs

Menentukan hak kontrol akses yang dapat diterapkan ke objek peristiwa sistem bernama.

Enumerasi ini mendukung kombinasi bitwise dari nilai yang termasuk di dalamnya.

public enum class EventWaitHandleRights

[System.Flags]
public enum EventWaitHandleRights

[<System.Flags>]
type EventWaitHandleRights = 

Public Enum EventWaitHandleRights

Warisan

Object

ValueType

Enum

EventWaitHandleRights

Atribut

FlagsAttribute

Bidang

ChangePermissions	262144	Hak untuk mengubah aturan keamanan dan audit yang terkait dengan peristiwa bernama.
Delete	65536	Hak untuk menghapus peristiwa bernama.
FullControl	2031619	Hak untuk memberikan kontrol penuh atas peristiwa bernama, dan untuk memodifikasi aturan akses dan aturan auditnya.
Modify	2	Hak untuk mengatur atau mengatur ulang status yang disinyalir dari peristiwa bernama.
ReadPermissions	131072	Hak untuk membuka dan menyalin aturan akses dan aturan audit untuk peristiwa bernama.
Synchronize	1048576	Hak untuk menunggu pada peristiwa bernama.
TakeOwnership	524288	Hak untuk mengubah pemilik peristiwa bernama.

Contoh

Contoh kode berikut menunjukkan penggunaan EventWaitHandleRights nilai saat membuat dan menggunakan EventWaitHandleAccessRule objek. Contoh membuat EventWaitHandleSecurity objek, menambahkan aturan yang mengizinkan dan menolak berbagai hak untuk pengguna saat ini, dan menampilkan pasangan aturan yang dihasilkan. Contoh kemudian memungkinkan hak baru untuk pengguna saat ini dan menampilkan hasilnya, menunjukkan bahwa hak baru digabungkan dengan aturan yang ada AccessControlType.Allow .

Catatan

Contoh ini tidak melampirkan objek keamanan ke EventWaitHandle objek; lihat EventWaitHandleSecurity, EventWaitHandle.GetAccessControl metode, dan EventWaitHandle.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.
        EventWaitHandleSecurity mSec = new EventWaitHandleSecurity();

        // Add a rule that grants the current user the 
        // right to wait on or signal the event.
        EventWaitHandleAccessRule rule = new EventWaitHandleAccessRule(user, 
            EventWaitHandleRights.Synchronize | EventWaitHandleRights.Modify, 
            AccessControlType.Allow);
        mSec.AddAccessRule(rule);

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

        ShowSecurity(mSec);
    }

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

        foreach(EventWaitHandleAccessRule 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.EventWaitHandleRights);
            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 EventWaitHandleSecurity()

        ' Add a rule that grants the current user the 
        ' right to wait on or signal the event.
        Dim rule As New EventWaitHandleAccessRule(user, _
            EventWaitHandleRights.Synchronize _
            Or EventWaitHandleRights.Modify, _
            AccessControlType.Allow)
        mSec.AddAccessRule(rule)

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

        ShowSecurity(mSec)

    End Sub 

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

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

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

Keterangan

EventWaitHandleRights Gunakan enumerasi untuk menentukan hak kontrol akses saat Anda membuat EventWaitHandleAccessRule objek. Untuk menerapkan hak akses ke peristiwa sistem bernama, pertama-tama tambahkan EventWaitHandleAccessRule objek ke EventWaitHandleSecurity objek, lalu lampirkan EventWaitHandleSecurity objek ke peristiwa sistem bernama menggunakan EventWaitHandle.EventWaitHandle(Boolean, EventResetMode, String, Boolean, EventWaitHandleSecurity) konstruktor atau EventWaitHandle.SetAccessControl metode .

Lihat juga

• EventWaitHandleAccessRule
• EventWaitHandleSecurity