// returns false if the max pending messages total size was hit.
internal bool EnqueueMessage(Message message, int messageBufferSize, Action messageDequeuedCallback)
{
Action onMessageDequeuedCallback = () =>
{
lock (this.ThisLock)
{
this.pendingMessagesTotalSize -= messageBufferSize;
Fx.Assert(this.pendingMessagesTotalSize >= 0, "pendingMessagesTotalSize should not be negative.");
}
messageDequeuedCallback();
};
bool success = false;
lock (this.ThisLock)
{
if (this.pendingMessagesTotalSize + messageBufferSize <= this.maxPendingMessagesTotalSize)
{
message.Properties.Via = this.Via;
this.pendingMessagesTotalSize += messageBufferSize;
try
{
this.FinishEnqueueMessage(message, onMessageDequeuedCallback, false);
success = true;
}
finally
{
if (!success)
{
this.pendingMessagesTotalSize -= messageBufferSize;
}
}
}
else
{
if (TD.MaxPendingMessagesTotalSizeReachedIsEnabled())
{
string messageIdString = string.Empty;
if (message.Headers.MessageId != null)
{
messageIdString = string.Format(CultureInfo.CurrentCulture, "'{0}' ", message.Headers.MessageId.ToString());
}
EventTraceActivity eventTraceActivity = EventTraceActivityHelper.TryExtractActivity(message);
TD.MaxPendingMessagesTotalSizeReached(eventTraceActivity, messageIdString, this.maxPendingMessagesTotalSize, typeof(TransportBindingElement).FullName);
}
}
}
return(success);
}