/// <summary>
/// Stop listening
/// </summary>
public async Task StopAsync()
{
// Log it
CoreLogger.Log($"LiveServer '{ServingDirectory}' stopping...", type: LogType.Warning);
// Lock call
await AsyncAwaitor.AwaitAsync(mStopLock, async() =>
{
try
{
// Stop listener
mListener.Stop();
}
catch (Exception ex)
{
// Log it
Debugger.Break();
CoreLogger.Log($"Failed to stop LiveServer listener. {ex.Message}", type: LogType.Warning);
}
// Set stopping flag to true
Stopping = true;
// Dispose folder watcher
mFolderWatcher?.Dispose();
mFolderWatcher = null;
// Set it so any blocked calls pass on
mContentChangedResetEvent.Set();
mContentChangedResetEvent.Reset();
// Flag that we are no longer listening
while (Listening)
{
await Task.Delay(100);
}
// Log it
CoreLogger.Log($"LiveServer {ServingDirectory} stopped", type: LogType.Attention);
});
}
/// <summary>
/// Starts listening on the specified <see cref="Port"/>
/// </summary>
/// <returns>Returns the URL that is being listened on</returns>
public string Listen()
{
lock (mListenLock)
{
// If we are already listening...
if (Listening)
{
// Ignore
return(null);
}
#region Get Port
try
{
// Get port if one is not specified
if (Port <= 0)
{
// Log it
CoreLogger.Log("LiveServer getting available port...");
// Get next available port
Port = NextAvailablePort();
}
}
catch (Exception ex)
{
// Log it
Debugger.Break();
CoreLogger.Log($"LiveServer failed to find an available port. {ex.Message}", type: LogType.Error);
// Go no further
return(null);
}
// Log port to be used
CoreLogger.Log($"LiveServer will listen on port {Port}");
#endregion
// Expected listen URL
var listenUrl = $"http://localhost:{Port}/";
#region Listen
try
{
// Create new Http Listener
mListener = new HttpListener();
// Set port number
mListener.Prefixes.Add(listenUrl);
// Start listening
mListener.Start();
// Run new thread listening for content
// until we call Stop or Dispose
SafeTask.Run(() => ListenForContent());
// Set Listening flag
Listening = true;
// Log it
CoreLogger.Log($"LiveServer listening on http://localhost:{Port}, directory '{ServingDirectory}'", type: LogType.Information);
}
catch (Exception ex)
{
// Log it
Debugger.Break();
CoreLogger.Log($"LiveServer failed to start on port {Port}, directory '{ServingDirectory}'. {ex.Message}", type: LogType.Error);
// Go no further
return(null);
}
#endregion
#region File Change Watcher
mFolderWatcher = new FolderWatcher
{
Filter = "*",
Path = ServingDirectory,
UpdateDelay = 100
};
// Listen for file changes
mFolderWatcher.FileChanged += FolderWatcher_FileChanged;
mFolderWatcher.Start();
#endregion
// Return URL we are now listening on
return(listenUrl);
}
}
