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Diffstat (limited to 'Rx.NET/System.Reactive.Core/Reactive/Concurrency/CatchScheduler.cs')
-rw-r--r--Rx.NET/System.Reactive.Core/Reactive/Concurrency/CatchScheduler.cs151
1 files changed, 0 insertions, 151 deletions
diff --git a/Rx.NET/System.Reactive.Core/Reactive/Concurrency/CatchScheduler.cs b/Rx.NET/System.Reactive.Core/Reactive/Concurrency/CatchScheduler.cs
deleted file mode 100644
index b4e9fa3..0000000
--- a/Rx.NET/System.Reactive.Core/Reactive/Concurrency/CatchScheduler.cs
+++ /dev/null
@@ -1,151 +0,0 @@
-// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
-
-using System;
-using System.Reactive.Disposables;
-
-#if !NO_WEAKTABLE
-using System.Runtime.CompilerServices;
-#endif
-
-namespace System.Reactive.Concurrency
-{
- class CatchScheduler<TException> : SchedulerWrapper
- where TException : Exception
- {
- private readonly Func<TException, bool> _handler;
-
- public CatchScheduler(IScheduler scheduler, Func<TException, bool> handler)
- : base(scheduler)
- {
- _handler = handler;
- }
-
- protected override Func<IScheduler, TState, IDisposable> Wrap<TState>(Func<IScheduler, TState, IDisposable> action)
- {
- return (self, state) =>
- {
- try
- {
- return action(GetRecursiveWrapper(self), state);
- }
- catch (TException exception)
- {
- if (!_handler(exception))
- throw;
-
- return Disposable.Empty;
- }
- };
- }
-
-#if !NO_WEAKTABLE
- public CatchScheduler(IScheduler scheduler, Func<TException, bool> handler, ConditionalWeakTable<IScheduler, IScheduler> cache)
- : base(scheduler, cache)
- {
- _handler = handler;
- }
-
- protected override SchedulerWrapper Clone(IScheduler scheduler, ConditionalWeakTable<IScheduler, IScheduler> cache)
- {
- return new CatchScheduler<TException>(scheduler, _handler, cache);
- }
-#else
- protected override SchedulerWrapper Clone(IScheduler scheduler)
- {
- return new CatchScheduler<TException>(scheduler, _handler);
- }
-#endif
-
- protected override bool TryGetService(IServiceProvider provider, Type serviceType, out object service)
- {
- service = provider.GetService(serviceType);
-
- if (service != null)
- {
- if (serviceType == typeof(ISchedulerLongRunning))
- service = new CatchSchedulerLongRunning((ISchedulerLongRunning)service, _handler);
- else if (serviceType == typeof(ISchedulerPeriodic))
- service = new CatchSchedulerPeriodic((ISchedulerPeriodic)service, _handler);
- }
-
- return true;
- }
-
- class CatchSchedulerLongRunning : ISchedulerLongRunning
- {
- private readonly ISchedulerLongRunning _scheduler;
- private readonly Func<TException, bool> _handler;
-
- public CatchSchedulerLongRunning(ISchedulerLongRunning scheduler, Func<TException, bool> handler)
- {
- _scheduler = scheduler;
- _handler = handler;
- }
-
- public IDisposable ScheduleLongRunning<TState>(TState state, Action<TState, ICancelable> action)
- {
- return _scheduler.ScheduleLongRunning(state, (state_, cancel) =>
- {
- try
- {
- action(state_, cancel);
- }
- catch (TException exception)
- {
- if (!_handler(exception))
- throw;
- }
- });
- }
- }
-
- class CatchSchedulerPeriodic : ISchedulerPeriodic
- {
- private readonly ISchedulerPeriodic _scheduler;
- private readonly Func<TException, bool> _handler;
-
- public CatchSchedulerPeriodic(ISchedulerPeriodic scheduler, Func<TException, bool> handler)
- {
- _scheduler = scheduler;
- _handler = handler;
- }
-
- public IDisposable SchedulePeriodic<TState>(TState state, TimeSpan period, Func<TState, TState> action)
- {
- var failed = false;
-
- var d = new SingleAssignmentDisposable();
-
- d.Disposable = _scheduler.SchedulePeriodic(state, period, state_ =>
- {
- //
- // Cancellation may not be granted immediately; prevent from running user
- // code in that case. Periodic schedulers are assumed to introduce some
- // degree of concurrency, so we should return from the SchedulePeriodic
- // call eventually, allowing the d.Dispose() call in the catch block to
- // take effect.
- //
- if (failed)
- return default(TState);
-
- try
- {
- return action(state_);
- }
- catch (TException exception)
- {
- failed = true;
-
- if (!_handler(exception))
- throw;
-
- d.Dispose();
- return default(TState);
- }
- });
-
- return d;
- }
- }
- }
-}