Method exec

PIMELauncher/PipeServer.cpp:328–381

}

int PipeServer::exec(LPSTR cmd) {
	parseCommandLine(cmd);

	if (quitExistingLauncher_) { // terminate existing launcher process
		if (HWND existingHwnd = ::FindWindow(wndClassName_, nullptr)) {
			terminateExistingLauncher(existingHwnd);
		}
		return 0;
	}
    // ensure that only one instance of PIMELauncher can be running
    if (!initSingleInstance()) {
        return 0;
    }

    // Ask Windows to restart our process when crashes happen.
    RegisterApplicationRestart(L"/restarted", 0);  // should not include executable name.

	// get the PIME installation directory
    topDirPath_ = getCurrentExecutableDir();
	// must set CWD to our dir. otherwise the backends won't launch.
	::SetCurrentDirectoryW(topDirPath_.c_str());

	// this is the first instance
	initBackendServers(topDirPath_);

	// preparing for the server pipe
	SECURITY_ATTRIBUTES* sa = nullptr;
	if (::IsWindows8OrGreater()) {
		// Setting special security attributes to the named pipe is only needed 
		// for Windows >= 8 since older versions do not have app containers (metro apps) 
		// in which connecting to pipes are blocked by default permission settings.
		sa = securityAttributes_.get();
	}
	// initialize the server pipe
	initPipe(&serverPipe_, L"Launcher", sa);

	// listen to events from clients
	uv_listen(reinterpret_cast<uv_stream_t*>(&serverPipe_), 32, [](uv_stream_t* server, int status) {
		auto _this = reinterpret_cast<PipeServer*>(server->data);
		_this->onNewClientConnected(server, status);
	});

	// run GUI message loop in another worker thread
	uv_thread_t uiThread;
	uv_thread_create(&uiThread, [](void* arg) {
		reinterpret_cast<PipeServer*>(arg)->runGuiThread();
	}, this);

	// run the main loop
	uv_run(uv_default_loop(), UV_RUN_DEFAULT);

	uv_thread_join(&uiThread);  // wait for the GUI message loop to quit
	return 0;
}

// Window procedure of the main window
// this method is called from an worker thread other than the main thread