internal bool FinishPostingAsyncOp(ref CallbackClosure closure)
{
ExecutionContext context;
if ((this._Flags & (StateFlags.PostBlockFinished | StateFlags.PostBlockStarted)) != StateFlags.PostBlockStarted)
{
return(false);
}
this._Flags |= StateFlags.PostBlockFinished;
CallbackClosure closure2 = closure;
if (closure2 == null)
{
context = null;
}
else if (!closure2.IsCompatible(base.AsyncCallback))
{
closure = null;
context = null;
}
else
{
base.AsyncCallback = closure2.AsyncCallback;
context = closure2.Context;
}
bool flag = this.CaptureOrComplete(ref context, true);
if (((closure == null) && (base.AsyncCallback != null)) && (context != null))
{
closure = new CallbackClosure(context, base.AsyncCallback);
}
return(flag);
}
// Call this when returning control to the user. Allows a cached Callback Closure to be supplied and used
// as appropriate, and replaced with a new one.
internal bool FinishPostingAsyncOp(ref CallbackClosure?closure)
{
// Ignore this call if StartPostingAsyncOp() failed or wasn't called, or this has already been called.
if ((_flags & (StateFlags.PostBlockStarted | StateFlags.PostBlockFinished)) != StateFlags.PostBlockStarted)
{
return(false);
}
_flags |= StateFlags.PostBlockFinished;
// Need a copy of this ref argument since it can be used in many of these calls simultaneously.
CallbackClosure? closureCopy = closure;
ExecutionContext?cachedContext;
if (closureCopy == null)
{
cachedContext = null;
}
else
{
if (!closureCopy.IsCompatible(AsyncCallback))
{
// Clear the cache as soon as a method is called with incompatible parameters.
closure = null;
cachedContext = null;
}
else
{
// If it succeeded, we want to replace our context/callback with the one from the closure.
// Using the closure's instance of the callback is probably overkill, but safer.
AsyncCallback = closureCopy.AsyncCallback;
cachedContext = closureCopy.Context;
}
}
bool calledCallback = CaptureOrComplete(ref cachedContext, true);
// Set up new cached context if we didn't use the previous one.
if (closure == null && AsyncCallback != null && cachedContext != null)
{
closure = new CallbackClosure(cachedContext, AsyncCallback);
}
return(calledCallback);
}
internal bool FinishPostingAsyncOp(ref CallbackClosure closure)
{
ExecutionContext context;
if ((this._Flags & (StateFlags.PostBlockFinished | StateFlags.PostBlockStarted)) != StateFlags.PostBlockStarted)
{
return false;
}
this._Flags |= StateFlags.PostBlockFinished;
CallbackClosure closure2 = closure;
if (closure2 == null)
{
context = null;
}
else if (!closure2.IsCompatible(base.AsyncCallback))
{
closure = null;
context = null;
}
else
{
base.AsyncCallback = closure2.AsyncCallback;
context = closure2.Context;
}
bool flag = this.CaptureOrComplete(ref context, true);
if (((closure == null) && (base.AsyncCallback != null)) && (context != null))
{
closure = new CallbackClosure(context, base.AsyncCallback);
}
return flag;
}
// Call this when returning control to the user. Allows a cached Callback Closure to be supplied and used
// as appropriate, and replaced with a new one.
internal bool FinishPostingAsyncOp(ref CallbackClosure closure)
{
// Ignore this call if StartPostingAsyncOp() failed or wasn't called, or this has already been called.
if ((_flags & (StateFlags.PostBlockStarted | StateFlags.PostBlockFinished)) != StateFlags.PostBlockStarted)
{
return false;
}
_flags |= StateFlags.PostBlockFinished;
// Need a copy of this ref argument since it can be used in many of these calls simultaneously.
CallbackClosure closureCopy = closure;
ExecutionContext cachedContext;
if (closureCopy == null)
{
cachedContext = null;
}
else
{
if (!closureCopy.IsCompatible(AsyncCallback))
{
// Clear the cache as soon as a method is called with incompatible parameters.
closure = null;
cachedContext = null;
}
else
{
// If it succeeded, we want to replace our context/callback with the one from the closure.
// Using the closure's instance of the callback is probably overkill, but safer.
AsyncCallback = closureCopy.AsyncCallback;
cachedContext = closureCopy.Context;
}
}
bool calledCallback = CaptureOrComplete(ref cachedContext, true);
// Set up new cached context if we didn't use the previous one.
if (closure == null && AsyncCallback != null && cachedContext != null)
{
closure = new CallbackClosure(cachedContext, AsyncCallback);
}
return calledCallback;
}