protected override void OnStop()
{
lock (ServiceLock)
{
Stopping = true;
// TODO If agent service is killed make sure AgentListener also is killed
try
{
if (AgentListener != null && !AgentListener.HasExited)
{
// Try to let the agent process know that we are stopping
// TODO: This is not working, fix it
AgentListener.StandardInput.WriteLine("\x03");
// Wait for the process to finish (give it up to 30 seconds)
AgentListener.WaitForExit(30000);
// if agent is still running, kill it
if (!AgentListener.HasExited)
{
AgentListener.Kill();
}
}
}
catch (Exception exception)
{
// InvalidOperationException is thrown when there is no process associated to the process object.
// There is no process to kill, Log the exception and shutdown the service.
// If we don't handle this here, the service get into a state where it can neither be stoped nor restarted (Error 1061)
WriteException(exception);
}
}
}
protected override void OnStop()
{
lock (ServiceLock)
{
Stopping = true;
// throw exception during OnStop() will make SCM think the service crash and trigger recovery option.
// in this way we can self-update the service host.
if (_restart)
{
throw new Exception(Resource.CrashServiceHost);
}
// TODO If agent service is killed make sure AgentListener also is killed
try
{
if (AgentListener != null && !AgentListener.HasExited)
{
// Try to let the agent process know that we are stopping
//Attach service process to console of Agent.Listener process. This is needed,
//because windows service doesn't use its own console.
if (AttachConsole((uint)AgentListener.Id))
{
//Prevent main service process from stopping because of Ctrl + C event with SetConsoleCtrlHandler
SetConsoleCtrlHandler(null, true);
try
{
//Generate console event for current console with GenerateConsoleCtrlEvent (processGroupId should be zero)
GenerateConsoleCtrlEvent(CTRL_C_EVENT, 0);
//Wait for the process to finish (give it up to 30 seconds)
AgentListener.WaitForExit(30000);
}
finally
{
//Disconnect from console and restore Ctrl+C handling by main process
FreeConsole();
SetConsoleCtrlHandler(null, false);
}
}
// if agent is still running, kill it
if (!AgentListener.HasExited)
{
AgentListener.Kill();
}
}
}
catch (Exception exception)
{
// InvalidOperationException is thrown when there is no process associated to the process object.
// There is no process to kill, Log the exception and shutdown the service.
// If we don't handle this here, the service get into a state where it can neither be stoped nor restarted (Error 1061)
WriteException(exception);
}
}
}
// this will send either Ctrl-C or Ctrl-Break to agent.listener
// Ctrl-C will be used for OnStop()
// Ctrl-Break will be used for OnShutdown()
private void SendCtrlSignalToAgentListener(uint signal)
{
try
{
if (AgentListener != null && !AgentListener.HasExited)
{
// Try to let the agent process know that we are stopping
//Attach service process to console of Agent.Listener process. This is needed,
//because windows service doesn't use its own console.
if (AttachConsole((uint)AgentListener.Id))
{
//Prevent main service process from stopping because of Ctrl + C event with SetConsoleCtrlHandler
SetConsoleCtrlHandler(null, true);
try
{
//Generate console event for current console with GenerateConsoleCtrlEvent (processGroupId should be zero)
GenerateConsoleCtrlEvent(signal, 0);
//Wait for the process to finish (give it up to 30 seconds)
AgentListener.WaitForExit(30000);
}
finally
{
//Disconnect from console and restore Ctrl+C handling by main process
FreeConsole();
SetConsoleCtrlHandler(null, false);
}
}
// if agent is still running, kill it
if (!AgentListener.HasExited)
{
AgentListener.Kill();
}
}
}
catch (Exception exception)
{
// InvalidOperationException is thrown when there is no process associated to the process object.
// There is no process to kill, Log the exception and shutdown the service.
// If we don't handle this here, the service get into a state where it can neither be stoped nor restarted (Error 1061)
WriteException(exception);
}
}
