SemaphoreAccessRule 建構函式

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

public:
 SemaphoreAccessRule(System::Security::Principal::IdentityReference ^ identity, System::Security::AccessControl::SemaphoreRights eventRights, System::Security::AccessControl::AccessControlType type);

public SemaphoreAccessRule(System.Security.Principal.IdentityReference identity, System.Security.AccessControl.SemaphoreRights eventRights, System.Security.AccessControl.AccessControlType type);

new System.Security.AccessControl.SemaphoreAccessRule : System.Security.Principal.IdentityReference * System.Security.AccessControl.SemaphoreRights * System.Security.AccessControl.AccessControlType -> System.Security.AccessControl.SemaphoreAccessRule

Public Sub New (identity As IdentityReference, eventRights As SemaphoreRights, type As AccessControlType)

參數

例外狀況

備註

例如，要輸入 Semaphore，例如呼叫該 WaitOne 方法，使用者必須有權限 SemaphoreRights.Synchronize 。 使用者若要透過呼叫 Release 該方法退出信號量，必須具備 SemaphoreRights.Modify 存取權限。

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

來源:

SemaphoreSecurity.cs

public:
 SemaphoreAccessRule(System::String ^ identity, System::Security::AccessControl::SemaphoreRights eventRights, System::Security::AccessControl::AccessControlType type);

public SemaphoreAccessRule(string identity, System.Security.AccessControl.SemaphoreRights eventRights, System.Security.AccessControl.AccessControlType type);

new System.Security.AccessControl.SemaphoreAccessRule : string * System.Security.AccessControl.SemaphoreRights * System.Security.AccessControl.AccessControlType -> System.Security.AccessControl.SemaphoreAccessRule

Public Sub New (identity As String, eventRights As SemaphoreRights, type As AccessControlType)

參數

例外狀況

範例

以下程式碼範例示範使用此建構子來建立 SemaphoreAccessRule 物件。 範例中建立一個 SemaphoreSecurity 物件，新增允許或拒絕當前使用者各種權利的規則，並顯示所產生的規則對。 範例接著允許現有使用者新增權限，並顯示結果，顯示新權限已與現有 Allow 規則合併。

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.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

備註

例如，要輸入 Semaphore，例如呼叫該 WaitOne 方法，使用者必須有權限 SemaphoreRights.Synchronize 。 使用者若要透過呼叫 Release 該方法退出信號量，必須具備 SemaphoreRights.Modify 存取權限。

此建構子等同於建立一個 NTAccount 物件，透過傳遞 identity 給 NTAccount.NTAccount(String) 建構者，再將新建立 NTAccount 的物件傳給 SemaphoreAccessRule(IdentityReference, SemaphoreRights, AccessControlType) 建構子。