public ChiefWorkerProcess(
ILog log,
ServerSettingsBase workerSettings)
{
_log = log;
_settings = workerSettings;
Name = _settings.SourceSettings.Name;
_logReceiverPipe = new AnonymousPipeServerStream(PipeDirection.In, HandleInheritability.Inheritable);
_logReceiverThread = new Thread(LogReceiverThreadJob)
{
IsBackground = true
};
_process = new Process
{
EnableRaisingEvents = true,
StartInfo =
{
FileName = Path.Combine(
Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location),
"IpCamEmu Console.exe"),
UseShellExecute = false,
ErrorDialog = false,
CreateNoWindow = true
}
};
_process.Exited += delegate { _process = null; };
_launchProcessThread = new Thread(LaunchWorkerThreadJob)
{
IsBackground = true
};
}
/// <summary>
/// Reading by worker settings Chief passed.
/// </summary>
/// <param name="workerSettingsPipeHandle">Settings pipe handler.</param>
/// <param name="workerLogPipe">Log redirector setting.</param>
/// <param name="workerSettings">Worker settings.</param>
/// <param name="chiefProcess">Chief process.</param>
public static void ReadSettings(
string workerSettingsPipeHandle,
out ILog workerLogPipe,
out ServerSettingsBase workerSettings,
out Process chiefProcess)
{
using (var workerControlPipe = new AnonymousPipeClientStream(PipeDirection.In, workerSettingsPipeHandle))
{
var binaryReader = new BinaryReader(workerControlPipe);
workerLogPipe = new AnonymousPipeClientStreamLog(binaryReader.ReadString());
chiefProcess = Process.GetProcessById(binaryReader.ReadInt32());
workerLogPipe.Open();
workerSettings = (ServerSettingsBase)new BinaryFormatter().Deserialize(workerControlPipe);
binaryReader.Dispose(); // because it closes underlying stream.
}
}
/// <summary>
/// Sends settings from chief to worker process via anonymous control pipe.
/// </summary>
/// <param name="afterSettingsPipeCreated">Invoked with settings pipe handler, so the child worker process can be launched there with with handler as command line argument.</param>
/// <param name="chiefLogReceiverPipe">Log receiver pipe settings to transfer.</param>
/// <param name="workerSettings">Worker settings to transfer.</param>
/// <param name="chiefProcess">Chief process.</param>
/// <remarks>
/// Method has 10 seconds timeout for worker process to connect to pipe and read settings.
/// That is used to avoid blocking with controlPipe.WaitForPipeDrain() in case client failed to read settings or disconnected in the middle of sending message.
/// </remarks>
internal static void SendSettings(
Action<string> afterSettingsPipeCreated,
AnonymousPipeServerStream chiefLogReceiverPipe,
ServerSettingsBase workerSettings,
Process chiefProcess)
{
using (var chiefSettingsPipe = new AnonymousPipeServerStream(PipeDirection.Out, HandleInheritability.Inheritable))
{
afterSettingsPipeCreated(chiefSettingsPipe.GetClientHandleAsString());
var binaryWriter = new BinaryWriter(chiefSettingsPipe);
binaryWriter.Write(chiefLogReceiverPipe.GetClientHandleAsString());
binaryWriter.Write((Int32)chiefProcess.Id);
new BinaryFormatter()
.Serialize(chiefSettingsPipe, workerSettings);
Thread.Sleep(10000);
chiefSettingsPipe.DisposeLocalCopyOfClientHandle();
binaryWriter.Dispose(); // because it disposes underlying stream.
}
}
