AbandonedMutexException 클래스

정의

스레드가 다른 스레드에서 해제하지 않고 종료하여 중단한 Mutex 개체를 가져오면 throw되는 예외입니다.The exception that is thrown when one thread acquires a Mutex object that another thread has abandoned by exiting without releasing it.

public ref class AbandonedMutexException : SystemException
[System.Runtime.InteropServices.ComVisible(false)]
[System.Serializable]
public class AbandonedMutexException : SystemException
type AbandonedMutexException = class
    inherit SystemException
Public Class AbandonedMutexException
Inherits SystemException
상속
AbandonedMutexException
특성

예제

다음 코드 예제에 해당 효과 보여 주는 5 개의 뮤텍스를 중단 하는 스레드를 실행 합니다 WaitOne, WaitAny, 및 WaitAll 메서드.The following code example executes a thread that abandons five mutexes, demonstrating their effects on the WaitOne, WaitAny, and WaitAll methods. 값을 MutexIndex 속성에 대해 표시 되는 WaitAny 호출 합니다.The value of the MutexIndex property is displayed for the WaitAny call.

참고

에 대 한 호출을 WaitAny 메서드 중단 된 뮤텍스 중 하나에서 중단 됩니다.The call to the WaitAny method is interrupted by one of the abandoned mutexes. 중단 된 뮤텍스의 여전히 발생할 수 있습니다는 AbandonedMutexException 후속 대기 메서드에 의해 throw 됩니다.The other abandoned mutex could still cause an AbandonedMutexException to be thrown by subsequent wait methods.

using namespace System;
using namespace System::Threading;

namespace SystemThreadingExample
{
    public ref class Example
    {
    private:
        static ManualResetEvent^ dummyEvent = 
            gcnew ManualResetEvent(false);
            
        static Mutex^ orphanMutex1 = gcnew Mutex;
        static Mutex^ orphanMutex2 = gcnew Mutex;
        static Mutex^ orphanMutex3 = gcnew Mutex;
        static Mutex^ orphanMutex4 = gcnew Mutex;
        static Mutex^ orphanMutex5 = gcnew Mutex;
        
    public:
        static void ProduceAbandonMutexException(void)
        {
            
            // Start a thread that grabs all five mutexes, and then
            // abandons them.
            Thread^ abandonThread = 
                gcnew Thread(gcnew ThreadStart(AbandonMutex));

            abandonThread->Start();
            
            // Make sure the thread is finished.
            abandonThread->Join();
            
            // Wait on one of the abandoned mutexes. The WaitOne
            // throws an AbandonedMutexException.
            try
            {
                orphanMutex1->WaitOne();
                Console::WriteLine("WaitOne succeeded.");
            }
            catch (AbandonedMutexException^ ex) 
            {
                Console::WriteLine("Exception in WaitOne: {0}", 
                    ex->Message);
            }
            finally
            {
                
                // Whether or not the exception was thrown, 
                // the current thread owns the mutex, and 
                // must release it.
                orphanMutex1->ReleaseMutex();
            }

            
            // Create an array of wait handles, consisting of one
            // ManualResetEvent and two mutexes, using two more of
            // the abandoned mutexes.
            array <WaitHandle^>^ waitFor = {dummyEvent, 
                orphanMutex2, orphanMutex3};
            
            // WaitAny returns when any of the wait handles in the 
            // array is signaled. Either of the two abandoned mutexes
            // satisfy the wait, but lower of the two index values is
            // returned by MutexIndex. Note that the Try block and
            // the Catch block obtain the index in different ways.
            try
            {
                int index = WaitHandle::WaitAny(waitFor);
                Console::WriteLine("WaitAny succeeded.");
                (safe_cast<Mutex^>(waitFor[index]))->ReleaseMutex();
            }
            catch (AbandonedMutexException^ ex) 
            {
                Console::WriteLine("Exception in WaitAny at index {0}"
                    "\r\n\tMessage: {1}", ex->MutexIndex, 
                    ex->Message);
                (safe_cast<Mutex^>(waitFor[ex->MutexIndex]))->
                    ReleaseMutex();
            }

            orphanMutex3->ReleaseMutex();
            
            // Use two more of the abandoned mutexes for the WaitAll 
            // call. WaitAll doesn't return until all wait handles 
            // are signaled, so the ManualResetEvent must be signaled 
            // by calling Set().
            dummyEvent->Set();
            waitFor[1] = orphanMutex4;
            waitFor[2] = orphanMutex5;
            
            // Because WaitAll requires all the wait handles to be
            // signaled, both mutexes must be released even if the
            // exception is thrown. Thus, the ReleaseMutex calls are 
            // placed in the Finally block. Again, MutexIndex returns
            // the lower of the two index values for the abandoned
            // mutexes.
            //  
            try
            {
                WaitHandle::WaitAll(waitFor);
                Console::WriteLine("WaitAll succeeded.");
            }
            catch (AbandonedMutexException^ ex) 
            {
                Console::WriteLine("Exception in WaitAny at index {0}"
                    "\r\n\tMessage: {1}", ex->MutexIndex, 
                    ex->Message);
            }
            finally
            {
                orphanMutex4->ReleaseMutex();
                orphanMutex5->ReleaseMutex();
            }

        }


    private:
        [MTAThread]
        static void AbandonMutex()
        {
            orphanMutex1->WaitOne();
            orphanMutex2->WaitOne();
            orphanMutex3->WaitOne();
            orphanMutex4->WaitOne();
            orphanMutex5->WaitOne();
            Console::WriteLine(
                "Thread exits without releasing the mutexes.");
        }
    };   
}

//Entry point of example application
[MTAThread]
int main(void)
{
    SystemThreadingExample::Example::ProduceAbandonMutexException();
}

// This code example produces the following output:
// Thread exits without releasing the mutexes.
// Exception in WaitOne: The wait completed due to an abandoned mutex.
// Exception in WaitAny at index 1
//         Message: The wait completed due to an abandoned mutex.
// Exception in WaitAll at index -1
//         Message: The wait completed due to an abandoned mutex.


using System;
using System.Threading;

public class Example
{
    private static ManualResetEvent _dummy = new ManualResetEvent(false);

    private static Mutex _orphan1 = new Mutex();
    private static Mutex _orphan2 = new Mutex();
    private static Mutex _orphan3 = new Mutex();
    private static Mutex _orphan4 = new Mutex();
    private static Mutex _orphan5 = new Mutex();

    [MTAThread]
    public static void Main()
    {
        // Start a thread that takes all five mutexes, and then
        // ends without releasing them.
        //
        Thread t = new Thread(new ThreadStart(AbandonMutex));
        t.Start();
        // Make sure the thread is finished.
        t.Join();

        // Wait on one of the abandoned mutexes. The WaitOne returns
        // immediately, because its wait condition is satisfied by
        // the abandoned mutex, but on return it throws
        // AbandonedMutexException.
        try
        {
            _orphan1.WaitOne();
            Console.WriteLine("WaitOne succeeded.");
        }
        catch(AbandonedMutexException ex)
        {
            Console.WriteLine("Exception on return from WaitOne." +
                "\r\n\tMessage: {0}", ex.Message);
        }
        finally
        {
            // Whether or not the exception was thrown, the current
            // thread owns the mutex, and must release it.
            //
            _orphan1.ReleaseMutex();
        }

        // Create an array of wait handles, consisting of one
        // ManualResetEvent and two mutexes, using two more of the
        // abandoned mutexes.
        WaitHandle[] waitFor = {_dummy, _orphan2, _orphan3};

        // WaitAny returns when any of the wait handles in the 
        // array is signaled, so either of the two abandoned mutexes
        // satisfy its wait condition. On returning from the wait,
        // WaitAny throws AbandonedMutexException. The MutexIndex
        // property returns the lower of the two index values for 
        // the abandoned mutexes. Note that the Try block and the
        // Catch block obtain the index in different ways.
        //  
        try
        {
            int index = WaitHandle.WaitAny(waitFor);
            Console.WriteLine("WaitAny succeeded.");

            // The current thread owns the mutex, and must release
            // it.
            Mutex m = waitFor[index] as Mutex;
            if (m != null) m.ReleaseMutex();
        }
        catch(AbandonedMutexException ex)
        {
            Console.WriteLine("Exception on return from WaitAny at index {0}." +
                "\r\n\tMessage: {1}", ex.MutexIndex, ex.Message);

            // Whether or not the exception was thrown, the current
            // thread owns the mutex, and must release it.
            //
            if (ex.Mutex != null) ex.Mutex.ReleaseMutex();
        }

        // Use two more of the abandoned mutexes for the WaitAll call.
        // WaitAll doesn't return until all wait handles are signaled,
        // so the ManualResetEvent must be signaled by calling Set().
        _dummy.Set();
        waitFor[1] = _orphan4;
        waitFor[2] = _orphan5;

        // The signaled event and the two abandoned mutexes satisfy
        // the wait condition for WaitAll, but on return it throws
        // AbandonedMutexException. For WaitAll, the MutexIndex
        // property is always -1 and the Mutex property is always
        // null.
        //  
        try
        {
            WaitHandle.WaitAll(waitFor);
            Console.WriteLine("WaitAll succeeded.");
        }
        catch(AbandonedMutexException ex)
        {
            Console.WriteLine("Exception on return from WaitAll. MutexIndex = {0}." +
                "\r\n\tMessage: {1}", ex.MutexIndex, ex.Message);
        }
        finally
        {
            // Whether or not the exception was thrown, the current
            // thread owns the mutexes, and must release them.
            //
            _orphan4.ReleaseMutex();
            _orphan5.ReleaseMutex();
        }
    }

    [MTAThread]
    public static void AbandonMutex()
    {
        _orphan1.WaitOne();
        _orphan2.WaitOne();
        _orphan3.WaitOne();
        _orphan4.WaitOne();
        _orphan5.WaitOne();
        // Abandon the mutexes by exiting without releasing them.
        Console.WriteLine("Thread exits without releasing the mutexes.");
    }
}

/* This code example produces the following output:

Thread exits without releasing the mutexes.
Exception on return from WaitOne.
        Message: The wait completed due to an abandoned mutex.
Exception on return from WaitAny at index 1.
        Message: The wait completed due to an abandoned mutex.
Exception on return from WaitAll. MutexIndex = -1.
        Message: The wait completed due to an abandoned mutex.
 */
Option Explicit
Imports System.Threading

Public Class Example
    Private Shared _dummy As New ManualResetEvent(False)

    Private Shared _orphan1 As New Mutex()
    Private Shared _orphan2 As New Mutex()
    Private Shared _orphan3 As New Mutex()
    Private Shared _orphan4 As New Mutex()
    Private Shared _orphan5 As New Mutex()

    <MTAThread> _
    Public Shared Sub Main()
        ' Start a thread that takes all five mutexes, and then
        ' ends without releasing them.
        '
        Dim t As New Thread(AddressOf AbandonMutex)
        t.Start()
        ' Make sure the thread is finished.
        t.Join()

        ' Wait on one of the abandoned mutexes. The WaitOne returns
        ' immediately, because its wait condition is satisfied by
        ' the abandoned mutex, but on return it throws
        ' AbandonedMutexException.
        Try
            _orphan1.WaitOne()
            Console.WriteLine("WaitOne succeeded.")
        Catch ex As AbandonedMutexException
            Console.WriteLine("Exception on return from WaitOne." _
                & vbCrLf & vbTab & "Message: " _
                & ex.Message) 
        Finally
            ' Whether or not the exception was thrown, the current
            ' thread owns the mutex, and must release it.
            '
            _orphan1.ReleaseMutex()
        End Try

        ' Create an array of wait handles, consisting of one
        ' ManualResetEvent and two mutexes, using two more of the
        ' abandoned mutexes.
        Dim waitFor(2) As WaitHandle
        waitFor(0) = _dummy
        waitFor(1) = _orphan2
        waitFor(2) = _orphan3

        ' WaitAny returns when any of the wait handles in the 
        ' array is signaled, so either of the two abandoned mutexes
        ' satisfy its wait condition. On returning from the wait,
        ' WaitAny throws AbandonedMutexException. The MutexIndex
        ' property returns the lower of the two index values for 
        ' the abandoned mutexes. Note that the Try block and the
        ' Catch block obtain the index in different ways.
        '  
        Try
            Dim index As Integer = WaitHandle.WaitAny(waitFor)
            Console.WriteLine("WaitAny succeeded.")

            Dim m As Mutex = TryCast(waitFor(index), Mutex)

            ' The current thread owns the mutex, and must release
            ' it.
            If m IsNot Nothing Then m.ReleaseMutex()
        Catch ex As AbandonedMutexException
            Console.WriteLine("Exception on return from WaitAny at index " _
                & ex.MutexIndex & "." _
                & vbCrLf & vbTab & "Message: " _
                & ex.Message) 

            ' Whether or not the exception was thrown, the current
            ' thread owns the mutex, and must release it.
            '
            If ex.Mutex IsNot Nothing Then ex.Mutex.ReleaseMutex()            
        End Try

        ' Use two more of the abandoned mutexes for the WaitAll call.
        ' WaitAll doesn't return until all wait handles are signaled,
        ' so the ManualResetEvent must be signaled by calling Set(). 
        _dummy.Set()
        waitFor(1) = _orphan4
        waitFor(2) = _orphan5

        ' The signaled event and the two abandoned mutexes satisfy
        ' the wait condition for WaitAll, but on return it throws
        ' AbandonedMutexException. For WaitAll, the MutexIndex
        ' property is always -1 and the Mutex property is always
        ' Nothing.
        '  
        Try
            WaitHandle.WaitAll(waitFor)
            Console.WriteLine("WaitAll succeeded.")
        Catch ex As AbandonedMutexException
            Console.WriteLine("Exception on return from WaitAll. MutexIndex = " _
                & ex.MutexIndex & "." _
                & vbCrLf & vbTab & "Message: " _
                & ex.Message) 
        Finally
            ' Whether or not the exception was thrown, the current
            ' thread owns the mutexes, and must release them.
            '
            CType(waitFor(1), Mutex).ReleaseMutex()
            CType(waitFor(2), Mutex).ReleaseMutex()
        End Try
    End Sub

    <MTAThread> _
    Public Shared Sub AbandonMutex()
        _orphan1.WaitOne()
        _orphan2.WaitOne()
        _orphan3.WaitOne()
        _orphan4.WaitOne()
        _orphan5.WaitOne()
        ' Abandon the mutexes by exiting without releasing them.
        Console.WriteLine("Thread exits without releasing the mutexes.")
    End Sub
End Class

' This code example produces the following output:
'
'Thread exits without releasing the mutexes.
'Exception on return from WaitOne.
'        Message: The wait completed due to an abandoned mutex.
'Exception on return from WaitAny at index 1.
'        Message: The wait completed due to an abandoned mutex.
'Exception on return from WaitAll. MutexIndex = -1.
'        Message: The wait completed due to an abandoned mutex.

설명

다른 스레드에서 중단 된 뮤텍스를 예외는 뮤텍스를 획득 하는 다음 스레드에서 throw 됩니다.When a thread abandons a mutex, the exception is thrown in the next thread that acquires the mutex. 스레드는 뮤텍스에서 대기 이미 있거나 나중에 뮤텍스를 전환 되기 때문에 뮤텍스를 획득할 수 있습니다.The thread might acquire the mutex because it was already waiting on the mutex or because it enters the mutex at a later time.

중단 된 뮤텍스 심각한 프로그래밍 오류를 나타냅니다.An abandoned mutex indicates a serious programming error. 스레드가 뮤텍스를 해제 하지 않고 종료 되 면 뮤텍스의 보호를 받는 데이터 구조 상태가 일관 되지 않을 수 있습니다.When a thread exits without releasing the mutex, the data structures protected by the mutex might not be in a consistent state. .NET Framework 버전 2.0 이전에 이러한 문제 중단의 결과로 완료를 대기 하는 경우 예외가 throw 되었기 때문에 검색 하기 어려운 않았습니다.Prior to version 2.0 of the .NET Framework, such problems were hard to discover because no exception was thrown if a wait completed as the result of an abandoned mutex. 자세한 내용은 Mutex 클래스를 참조하세요.For more information, see the Mutex class.

뮤텍스의 소유권을 요청 하는 다음 스레드에서이 예외를 처리 하 고 데이터 구조의 무결성을 확인할 수는 계속 수 있습니다.The next thread to request ownership of the mutex can handle this exception and proceed, provided that the integrity of the data structures can be verified.

생성자

AbandonedMutexException()

기본값을 사용하여 AbandonedMutexException 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with default values.

AbandonedMutexException(Int32, WaitHandle)

중단된 뮤텍스의 지정된 인덱스 및 뮤텍스를 나타내는 AbandonedMutexException 개체(해당 사항이 있을 경우)를 사용하여 Mutex 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with a specified index for the abandoned mutex, if applicable, and a Mutex object that represents the mutex.

AbandonedMutexException(SerializationInfo, StreamingContext)

serialize된 데이터를 사용하여 AbandonedMutexException 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with serialized data.

AbandonedMutexException(String)

지정된 오류 메시지를 사용하여 AbandonedMutexException 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with a specified error message.

AbandonedMutexException(String, Exception)

지정된 오류 메시지와 내부 예외를 사용하여 AbandonedMutexException 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with a specified error message and inner exception.

AbandonedMutexException(String, Exception, Int32, WaitHandle)

지정된 오류 메시지, 내부 예외, 중단된 뮤텍스의 인덱스 및 뮤텍스를 나타내는 AbandonedMutexException 개체(해당 사항이 있을 경우)를 사용하여 Mutex 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with a specified error message, the inner exception, the index for the abandoned mutex, if applicable, and a Mutex object that represents the mutex.

AbandonedMutexException(String, Int32, WaitHandle)

지정된 오류 메시지, 중단된 뮤텍스의 인덱스 및 중단된 뮤텍스(해당 사항이 있을 경우)를 사용하여 AbandonedMutexException 클래스의 새 인스턴스를 초기화합니다.Initializes a new instance of the AbandonedMutexException class with a specified error message, the index of the abandoned mutex, if applicable, and the abandoned mutex.

속성

Data

예외에 대한 사용자 정의 추가 정보를 제공하는 키/값 쌍의 컬렉션을 가져옵니다.Gets a collection of key/value pairs that provide additional user-defined information about the exception.

(다음에서 상속됨 Exception)
HelpLink

이 예외와 연결된 도움말 파일에 대한 링크를 가져오거나 설정합니다.Gets or sets a link to the help file associated with this exception.

(다음에서 상속됨 Exception)
HResult

특정 예외에 할당된 코드화된 숫자 값인 HRESULT를 가져오거나 설정합니다.Gets or sets HRESULT, a coded numerical value that is assigned to a specific exception.

(다음에서 상속됨 Exception)
InnerException

현재 예외를 발생시킨 Exception 인스턴스를 가져옵니다.Gets the Exception instance that caused the current exception.

(다음에서 상속됨 Exception)
Message

현재 예외를 설명하는 메시지를 가져옵니다.Gets a message that describes the current exception.

(다음에서 상속됨 Exception)
Mutex

예외의 발생시킨 중단된 뮤텍스를 가져옵니다.Gets the abandoned mutex that caused the exception, if known.

MutexIndex

예외의 발생시킨 중단된 뮤텍스를 가져옵니다.Gets the index of the abandoned mutex that caused the exception, if known.

Source

오류를 발생시키는 애플리케이션 또는 개체의 이름을 가져오거나 설정합니다.Gets or sets the name of the application or the object that causes the error.

(다음에서 상속됨 Exception)
StackTrace

호출 스택의 직접 실행 프레임에 대한 문자열 표현을 가져옵니다.Gets a string representation of the immediate frames on the call stack.

(다음에서 상속됨 Exception)
TargetSite

현재 예외를 throw하는 메서드를 가져옵니다.Gets the method that throws the current exception.

(다음에서 상속됨 Exception)

메서드

Equals(Object)

지정한 개체와 현재 개체가 같은지 여부를 확인합니다.Determines whether the specified object is equal to the current object.

(다음에서 상속됨 Object)
GetBaseException()

파생 클래스에서 재정의되었을 때, 하나 이상의 후속 예외의 근본 원인이 되는 Exception을 반환합니다.When overridden in a derived class, returns the Exception that is the root cause of one or more subsequent exceptions.

(다음에서 상속됨 Exception)
GetHashCode()

기본 해시 함수로 작동합니다.Serves as the default hash function.

(다음에서 상속됨 Object)
GetObjectData(SerializationInfo, StreamingContext)

파생 클래스에서 재정의될 때, 예외에 관한 정보를 SerializationInfo에 설정합니다.When overridden in a derived class, sets the SerializationInfo with information about the exception.

(다음에서 상속됨 Exception)
GetType()

현재 인스턴스의 런타임 형식을 가져옵니다.Gets the runtime type of the current instance.

(다음에서 상속됨 Exception)
MemberwiseClone()

현재 Object의 단순 복사본을 만듭니다.Creates a shallow copy of the current Object.

(다음에서 상속됨 Object)
ToString()

현재 예외에 대한 문자열 표현을 만들고 반환합니다.Creates and returns a string representation of the current exception.

(다음에서 상속됨 Exception)

이벤트

SerializeObjectState

예외에 대한 serialize된 데이터가 들어 있는 예외 상태 개체가 만들어지도록 예외가 serialize될 때 발생합니다.Occurs when an exception is serialized to create an exception state object that contains serialized data about the exception.

(다음에서 상속됨 Exception)

적용 대상

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