SemaphoreAccessRule 构造函数
定义
重要
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初始化 SemaphoreAccessRule 类的新实例。
重载
| SemaphoreAccessRule(IdentityReference, SemaphoreRights, AccessControlType) |
初始化 SemaphoreAccessRule 类的新实例，指定此规则应用到的用户或组、访问权限以及是否允许或拒绝指定的访问权限。 |
| SemaphoreAccessRule(String, SemaphoreRights, AccessControlType) |
初始化 SemaphoreAccessRule 类的新实例，指定应用此规则的用户或组的名称、访问权限以及是否允许或拒绝指定的访问权限。 |
SemaphoreAccessRule(IdentityReference, SemaphoreRights, AccessControlType)
- Source:
- SemaphoreSecurity.cs
- Source:
- SemaphoreSecurity.cs
- Source:
- SemaphoreSecurity.cs
- Source:
- SemaphoreSecurity.cs
初始化 SemaphoreAccessRule 类的新实例，指定此规则应用到的用户或组、访问权限以及是否允许或拒绝指定的访问权限。
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.SemaphoreAccessRulePublic Sub New (identity As IdentityReference, eventRights As SemaphoreRights, type As AccessControlType)参数
- identity
- IdentityReference
此规则应用到的用户或组。 必须为 SecurityIdentifier 类型，或可以转换为 NTAccount 类型的类型，如 SecurityIdentifier。
- eventRights
- SemaphoreRights
SemaphoreRights 值的按位组合，它指定允许或拒绝的权限。
- type
- AccessControlType
AccessControlType 值之一，用于指定是允许还是拒绝相应权限。
例外
identity 既不属于类型 SecurityIdentifier，也不属于可以转换为 NTAccount 类型的类型（如 SecurityIdentifier）。
注解
若要输入 Semaphore，例如通过调用 WaitOne 方法，用户必须具有 SemaphoreRights.Synchronize 访问权限。 若要退出信号灯，通过调用 Release 方法，用户必须具有 SemaphoreRights.Modify 访问权限。
适用于
SemaphoreAccessRule(String, SemaphoreRights, AccessControlType)
- Source:
- SemaphoreSecurity.cs
- Source:
- SemaphoreSecurity.cs
- Source:
- SemaphoreSecurity.cs
- Source:
- SemaphoreSecurity.cs
初始化 SemaphoreAccessRule 类的新实例，指定应用此规则的用户或组的名称、访问权限以及是否允许或拒绝指定的访问权限。
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.SemaphoreAccessRulePublic Sub New (identity As String, eventRights As SemaphoreRights, type As AccessControlType)参数
- identity
- String
应用此规则的用户或组的名称。
- eventRights
- SemaphoreRights
SemaphoreRights 值的按位组合，它指定允许或拒绝的权限。
- type
- AccessControlType
AccessControlType 值之一，用于指定是允许还是拒绝相应权限。
例外
eventRights 为零。
示例
下面的代码示例演示如何使用此构造函数来创建 SemaphoreAccessRule 对象。 该示例创建 一个 SemaphoreSecurity 对象，添加允许和拒绝当前用户的各种权限的规则，并显示生成的规则对。 然后，该示例允许当前用户的新权限并显示结果，显示新权限与现有 Allow 规则合并。
注意
此示例不将安全对象附加到 Semaphore 对象。 可以在 和 Semaphore.SetAccessControl中找到Semaphore.GetAccessControl附加安全对象的示例。
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
注解
若要输入 Semaphore，例如通过调用 WaitOne 方法，用户必须具有 SemaphoreRights.Synchronize 访问权限。 若要退出信号灯，通过调用 Release 方法，用户必须具有 SemaphoreRights.Modify 访问权限。
此构造函数等效于通过NTAccount传递给identityNTAccount.NTAccount(String)构造函数并将新创建NTAccount的对象传递给构造函数来创建对象SemaphoreAccessRule(IdentityReference, SemaphoreRights, AccessControlType)。
