private void CheckOptions(ArgumentParser parser) { if (parser.HasErrors) { runShutdown = false; exitApp = true; Current.Shutdown(1); } else if (parser.Driverinstall) { CreateBaseThread(); WelcomeDialog dialog = new WelcomeDialog(true); dialog.ShowDialog(); runShutdown = false; exitApp = true; Current.Shutdown(); } else if (parser.ReenableDevice) { DS4Devices.ReEnableDevice(parser.DeviceInstanceId); runShutdown = false; exitApp = true; Current.Shutdown(); } else if (parser.Runtask) { StartupMethods.LaunchOldTask(); runShutdown = false; exitApp = true; Current.Shutdown(); } else if (parser.Command) { IntPtr hWndDS4WindowsForm = FindWindow(ReadIPCClassNameMMF(), "DS4Windows"); if (hWndDS4WindowsForm != IntPtr.Zero) { COPYDATASTRUCT cds; cds.lpData = IntPtr.Zero; try { cds.dwData = IntPtr.Zero; cds.cbData = parser.CommandArgs.Length; cds.lpData = Marshal.StringToHGlobalAnsi(parser.CommandArgs); SendMessage(hWndDS4WindowsForm, DS4Forms.MainWindow.WM_COPYDATA, IntPtr.Zero, ref cds); } finally { if (cds.lpData != IntPtr.Zero) { Marshal.FreeHGlobal(cds.lpData); } } } runShutdown = false; exitApp = true; Current.Shutdown(); } }
private void CheckOptions(ArgumentParser parser) { if (parser.HasErrors) { runShutdown = false; exitApp = true; Current.Shutdown(1); } else if (parser.Driverinstall) { CreateBaseThread(); DS4Forms.WelcomeDialog dialog = new DS4Forms.WelcomeDialog(true); dialog.ShowDialog(); runShutdown = false; exitApp = true; Current.Shutdown(); } else if (parser.ReenableDevice) { DS4Windows.DS4Devices.reEnableDevice(parser.DeviceInstanceId); runShutdown = false; exitApp = true; Current.Shutdown(); } else if (parser.Runtask) { StartupMethods.LaunchOldTask(); runShutdown = false; exitApp = true; Current.Shutdown(); } else if (parser.Command) { IntPtr hWndDS4WindowsForm = IntPtr.Zero; hWndDS4WindowsForm = FindWindow(ReadIPCClassNameMMF(), "DS4Windows"); if (hWndDS4WindowsForm != IntPtr.Zero) { bool bDoSendMsg = true; bool bWaitResultData = false; bool bOwnsMutex = false; Mutex ipcSingleTaskMutex = null; EventWaitHandle ipcNotifyEvent = null; COPYDATASTRUCT cds; cds.lpData = IntPtr.Zero; try { if (parser.CommandArgs.ToLower().StartsWith("query.")) { // Query.device# (1..4) command returns a string result via memory mapped file. The cmd is sent to the background DS4Windows // process (via WM_COPYDATA wnd msg), then this client process waits for the availability of the result and prints it to console output pipe. // Use mutex obj to make sure that concurrent client calls won't try to write and read the same MMF result file at the same time. ipcSingleTaskMutex = new Mutex(false, "DS4Windows_IPCResultData_SingleTaskMtx"); try { bOwnsMutex = ipcSingleTaskMutex.WaitOne(10000); } catch (AbandonedMutexException) { bOwnsMutex = true; } if (bOwnsMutex) { // This process owns the inter-process sync mutex obj. Let's proceed with creating the output MMF file and waiting for a result. bWaitResultData = true; CreateIPCResultDataMMF(); ipcNotifyEvent = new EventWaitHandle(false, EventResetMode.AutoReset, "DS4Windows_IPCResultData_ReadyEvent"); } else { // If the mtx failed then something must be seriously wrong. Cannot do anything in that case because MMF file may be modified by concurrent processes. bDoSendMsg = false; } } if (bDoSendMsg) { cds.dwData = IntPtr.Zero; cds.cbData = parser.CommandArgs.Length; cds.lpData = Marshal.StringToHGlobalAnsi(parser.CommandArgs); SendMessage(hWndDS4WindowsForm, DS4Forms.MainWindow.WM_COPYDATA, IntPtr.Zero, ref cds); if (bWaitResultData) { Console.WriteLine(WaitAndReadIPCResultDataMMF(ipcNotifyEvent)); } } } finally { // Release the result MMF file in the client process before releasing the mtx and letting other client process to proceed with the same MMF file if (ipcResultDataMMA != null) { ipcResultDataMMA.Dispose(); } if (ipcResultDataMMF != null) { ipcResultDataMMF.Dispose(); } ipcResultDataMMA = null; ipcResultDataMMF = null; // If this was "Query.xxx" cmdline client call then release the inter-process mutex and let other concurrent clients to proceed (if there are anyone waiting for the MMF result file) if (bOwnsMutex && ipcSingleTaskMutex != null) { ipcSingleTaskMutex.ReleaseMutex(); } if (cds.lpData != IntPtr.Zero) { Marshal.FreeHGlobal(cds.lpData); } } } runShutdown = false; exitApp = true; Current.Shutdown(); } }