public void QueueChange(Mode mode, int seconds)
{
Log.Debug("Queuing mode: {0}, timeout: {1}", mode.Name, seconds);
var activationTime = DateTime.Now + new TimeSpan(0, 0, seconds);
lock (mChangeQueue)
{
mChangeQueue.Add(new ModeChange(mode, activationTime));
mChangeQueue.OrderBy(x => x.ActivationTime);
mQueueEvent.Set();
}
}
/// <summary>
/// Notify the application that the operation is complete
/// via the call back delegate.
/// </summary>
/// <param name="e">
/// The exception to be thrown in the <see cref="Finish" /> method
/// or <c>null</c> if the operation was completed successfully.
/// </param>
/// <remarks>
/// <note>
/// Although this method may be called more than once for
/// a particular async result instance, all but the first call
/// will be ignored.
/// </note>
/// </remarks>
public void Notify(Exception e)
{
#if DEBUG && !MOBILE_DEVICE
// Wait up to a second to verify that Started() has been
// called before reporting a warning.
DateTime endTime = SysTime.Now + TimeSpan.FromSeconds(1);
bool started = this.startStack != null;
while (!started && SysTime.Now < endTime)
{
Thread.Sleep(10);
started = this.startStack != null;
}
if (!started)
{
Trace("Notify({0}): Warning: Started() not called", exception != null ? exception.GetType().Name : (result == null ? "null" : result.ToString()));
AsyncTracker.Dump(this, "Warning: Started() not called before Notifiy()");
}
if (notifyQueued)
{
Trace("Notify({0}: Already queued)", exception != null ? exception.GetType().Name : (result == null ? "null" : result.ToString()));
return;
}
Trace("Notify({0})", exception != null ? exception.GetType().Name : (result == null ? "null" : result.ToString()));
notifyStack = CallStack.AsyncTrace(1, true);
if (NotifyHook != null)
{
NotifyHook(this, e);
}
#endif
#if !MOBILE_DEVICE
AsyncTracker.Yield();
#endif
using (TimedLock.Lock(this))
{
notifyQueued = true;
if (isCompleted)
{
return; // We've already signaled completion
}
exception = e;
if (callback != null)
{
if (syncCompletion)
{
callback(this);
}
else
{
Helper.UnsafeQueueUserWorkItem(onComplete, this);
}
}
else
{
isCompleted = true;
if (wait != null)
{
wait.Set();
}
}
}
#if !MOBILE_DEVICE
AsyncTracker.Yield();
#endif
}
private static AsyncEvent StreamCopy(Stream src, Stream dst, Func<bool> assertContinuation, Action onException = null, Action<int> onProgress = null)
{
var evt = new AsyncEvent(false, false);
var exception = false;
AsyncCallback cb = null;
cb = (ar) =>
{
var count = src.EndRead(ar);
var readed = (byte[])ar.AsyncState;
if (exception) return;
if (count != 0)
{
lock (evt)
{
if (exception) return;
var newArray = new byte[BLOCK_SIZE];
if (!assertContinuation())
return;
if (onProgress != null)
onProgress(count);
src.BeginRead(newArray, 0, BLOCK_SIZE, cb, newArray);
try
{
dst.Write(readed, 0, count);
}
catch (Exception e)
{
exception = true;
if(onException != null)
onException();
}
}
}
else
{
lock (evt)
{
src.Close();
evt.Set();
}
}
};
var startBuffer = new byte[BLOCK_SIZE];
src.BeginRead(startBuffer, 0, BLOCK_SIZE, cb, startBuffer);
return evt;
}
