66 lines
1.8 KiB
C#
66 lines
1.8 KiB
C#
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using System;
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using System.ComponentModel;
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using System.Threading;
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using System.Windows;
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using System.Windows.Threading;
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namespace 自救器呼吸器综合检验仪
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{
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internal static class AppShutdownCoordinator
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{
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private static int _shutdownRequested;
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public static bool IsShutdownInProgress
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{
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get
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{
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Application application = Application.Current;
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if (application == null)
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{
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return Interlocked.CompareExchange(ref _shutdownRequested, 0, 0) == 1;
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}
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return Interlocked.CompareExchange(ref _shutdownRequested, 0, 0) == 1
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|| application.Dispatcher.HasShutdownStarted
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|| application.Dispatcher.HasShutdownFinished;
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}
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}
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public static void RequestShutdown()
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{
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Application application = Application.Current;
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if (application == null)
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{
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return;
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}
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if (Interlocked.Exchange(ref _shutdownRequested, 1) == 1)
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{
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return;
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}
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application.Dispatcher.BeginInvoke(
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DispatcherPriority.ApplicationIdle,
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new Action(() =>
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{
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if (application.Dispatcher.HasShutdownStarted || application.Dispatcher.HasShutdownFinished)
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{
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return;
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}
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application.Shutdown();
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}));
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}
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public static bool ShouldSuppressDuringShutdown(Exception exception)
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{
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if (!IsShutdownInProgress || exception == null)
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{
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return false;
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}
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return exception is InvalidOperationException || exception is Win32Exception;
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}
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}
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}
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