GCNotificationStatus GCNotificationStatus GCNotificationStatus GCNotificationStatus Enum

Definice

Poskytuje informace o aktuální registraci pro oznámení dalšího úplného uvolňování paměti.Provides information about the current registration for notification of the next full garbage collection.

public enum class GCNotificationStatus
[System.Serializable]
public enum GCNotificationStatus
type GCNotificationStatus = 
Public Enum GCNotificationStatus
Dědičnost
GCNotificationStatusGCNotificationStatusGCNotificationStatusGCNotificationStatus
Atributy

Pole

Canceled Canceled Canceled Canceled 2

Aktuální registrace byla zrušena uživatelem.The current registration was canceled by the user.

Failed Failed Failed Failed 1

Oznámení se z nějakého důvodu nepovedlo.The notification failed for any reason.

NotApplicable NotApplicable NotApplicable NotApplicable 4

To může být způsobeno následujícími akcemi: neexistuje žádná aktuální registrace pro oznámení o uvolňování paměti, je povoleno souběžné uvolňování paměti nebo doba zadaná pro millisecondsTimeout parametr vypršela a není uvolněno uvolňování paměti. bylo obdrženo oznámení.This result can be caused by the following: there is no current registration for a garbage collection notification, concurrent garbage collection is enabled, or the time specified for the millisecondsTimeout parameter has expired and no garbage collection notification was obtained. (Další informace <o> tom, jak zakázat souběžné uvolňování paměti, najdete v tématu Nastavení modulu runtime gcConcurrent.)(See the <gcConcurrent> runtime setting for information about how to disable concurrent garbage collection.)

Succeeded Succeeded Succeeded Succeeded 0

Oznámení bylo úspěšné a registrace nebyla zrušena.The notification was successful and the registration was not canceled.

Timeout Timeout Timeout Timeout 3

Čas určený millisecondsTimeout parametrem WaitForFullGCApproach(Int32) nebo WaitForFullGCComplete(Int32) uplynul.The time specified by the millisecondsTimeout parameter for either WaitForFullGCApproach(Int32) or WaitForFullGCComplete(Int32) has elapsed.

Příklady

Následující příklad získá GCNotificationStatus výčet WaitForFullGCApproach z metody.The following example obtains a GCNotificationStatus enumeration from the WaitForFullGCApproach method. Pokud se výčet úspěšně vrátí, volá vlastní metodu OnFullGCApproachNotify , která provede akce v reakci na přístup k úplnému uvolňování paměti.If the enumeration returns Succeeded, it calls the custom method OnFullGCApproachNotify to perform actions in response to the approaching full garbage collection. Tento příklad kódu je součástí většího příkladu, který je k dispozici v tématu oznámení o uvolňování paměti .This code example is part of a larger example provided for Garbage Collection Notifications topic.

public:
    static void WaitForFullGCProc()
    {
        while (true)
        {
            // CheckForNotify is set to true and false in Main.
            while (checkForNotify)
            {
                // Check for a notification of an approaching collection.
                GCNotificationStatus s = GC::WaitForFullGCApproach();
                if (s == GCNotificationStatus::Succeeded)
                {
                    Console::WriteLine("GC Notifiction raised.");
                    OnFullGCApproachNotify();
                }
                else if (s == GCNotificationStatus::Canceled)
                {
                    Console::WriteLine("GC Notification cancelled.");
                    break;
                }
                else
                {
                    // This can occur if a timeout period
                    // is specified for WaitForFullGCApproach(Timeout)
                    // or WaitForFullGCComplete(Timeout)
                    // and the time out period has elapsed.
                    Console::WriteLine("GC Notification not applicable.");
                    break;
                }

                // Check for a notification of a completed collection.
                s = GC::WaitForFullGCComplete();
                if (s == GCNotificationStatus::Succeeded)
                {
                    Console::WriteLine("GC Notification raised.");
                    OnFullGCCompleteEndNotify();
                }
                else if (s == GCNotificationStatus::Canceled)
                {
                    Console::WriteLine("GC Notification cancelled.");
                    break;
                }
                else
                {
                    // Could be a time out.
                    Console::WriteLine("GC Notification not applicable.");
                    break;
                }
            }


            Thread::Sleep(500);
            // FinalExit is set to true right before
            // the main thread cancelled notification.
            if (finalExit)
            {
                break;
            }
        }
    }
public static void WaitForFullGCProc()
{
    while (true)
    {
        // CheckForNotify is set to true and false in Main.
        while (checkForNotify)
        {
            // Check for a notification of an approaching collection.
            GCNotificationStatus s = GC.WaitForFullGCApproach();
            if (s == GCNotificationStatus.Succeeded)
            {
                Console.WriteLine("GC Notification raised.");
                OnFullGCApproachNotify();
            }
            else if (s == GCNotificationStatus.Canceled)
            {
                Console.WriteLine("GC Notification cancelled.");
                break;
            }
            else
            {
                // This can occur if a timeout period
                // is specified for WaitForFullGCApproach(Timeout) 
                // or WaitForFullGCComplete(Timeout)  
                // and the time out period has elapsed. 
                Console.WriteLine("GC Notification not applicable.");
                break;
            }

            // Check for a notification of a completed collection.
            GCNotificationStatus status = GC.WaitForFullGCComplete();
            if (status == GCNotificationStatus.Succeeded)
            {
                Console.WriteLine("GC Notification raised.");
                OnFullGCCompleteEndNotify();
            }
            else if (status == GCNotificationStatus.Canceled)
            {
                Console.WriteLine("GC Notification cancelled.");
                break;
            }
            else
            {
                // Could be a time out.
                Console.WriteLine("GC Notification not applicable.");
                break;
            }
        }


        Thread.Sleep(500);
        // FinalExit is set to true right before  
        // the main thread cancelled notification.
        if (finalExit)
        {
            break;
        }
    }

}
Public Shared Sub WaitForFullGCProc()

    While True
        ' CheckForNotify is set to true and false in Main.

        While checkForNotify
            ' Check for a notification of an approaching collection.
            Dim s As GCNotificationStatus = GC.WaitForFullGCApproach
            If (s = GCNotificationStatus.Succeeded) Then
                Console.WriteLine("GC Notification raised.")
                OnFullGCApproachNotify()
            ElseIf (s = GCNotificationStatus.Canceled) Then
                Console.WriteLine("GC Notification cancelled.")
                Exit While
            Else
                ' This can occur if a timeout period
                ' is specified for WaitForFullGCApproach(Timeout) 
                ' or WaitForFullGCComplete(Timeout)  
                ' and the time out period has elapsed. 
                Console.WriteLine("GC Notification not applicable.")
                Exit While
            End If

            ' Check for a notification of a completed collection.
            s = GC.WaitForFullGCComplete
            If (s = GCNotificationStatus.Succeeded) Then
                Console.WriteLine("GC Notifiction raised.")
                OnFullGCCompleteEndNotify()
            ElseIf (s = GCNotificationStatus.Canceled) Then
                Console.WriteLine("GC Notification cancelled.")
                Exit While
            Else
                ' Could be a time out.
                Console.WriteLine("GC Notification not applicable.")
                Exit While
            End If

        End While
        Thread.Sleep(500)
        ' FinalExit is set to true right before  
        ' the main thread cancelled notification.
        If finalExit Then
            Exit While
        End If

    End While
End Sub

Poznámky

RegisterForFullGCNotification Použijte metodu k registraci úplného oznámení o uvolňování paměti.Use the RegisterForFullGCNotification method to register for a full garbage collection notification. Pak použijte WaitForFullGCApproach metodu WaitForFullGCComplete nebo metodu k vrácení GCNotificationStatus výčtu, který obsahuje stav oznámení.Then use the WaitForFullGCApproach method or the WaitForFullGCComplete method to return a GCNotificationStatus enumeration that contains the status of the notification.

Platí pro

Viz také