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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (info@qt.nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this file.
** Please review the following information to ensure the GNU Lesser General
** Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
** Nokia at info@qt.nokia.com.
**
**************************************************************************/
/* A stub for Windows console processes (like nmake) that is able to terminate
* its child process via a generated Ctrl-C event.
* The termination is triggered by sending a custom message to the HWND of
* this process. */
#ifndef WINVER
#define WINVER 0x0501
#endif
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0501
#endif
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <shellapi.h>
#include <wchar.h>
#include <cstdlib>
#include <cstdio>
const wchar_t szTitle[] = L"qtcctrlcstub";
const wchar_t szWindowClass[] = L"wcqtcctrlcstub";
UINT uiShutDownWindowMessage;
HWND hwndMain = 0;
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);
BOOL WINAPI ctrlHandler(DWORD dwCtrlType);
bool isSpaceOrTab(const wchar_t c);
bool startProcess(wchar_t pCommandLine[]);
int main(int argc, char **)
{
if (argc < 2) {
fprintf(stderr, "This is an internal helper of Qt Creator. Do not run it manually.\n");
return 1;
}
SetConsoleCtrlHandler(ctrlHandler, TRUE);
uiShutDownWindowMessage = RegisterWindowMessage(L"qtcctrlcstub_shutdown");
WNDCLASSEX wcex = {0};
wcex.cbSize = sizeof(wcex);
wcex.lpfnWndProc = WndProc;
wcex.hInstance = GetModuleHandle(0);
wcex.lpszClassName = szWindowClass;
if (!RegisterClassEx(&wcex))
return 1;
hwndMain = CreateWindow(szWindowClass, szTitle, WS_DISABLED,
0, 0, 0, 0, NULL, NULL, wcex.hInstance, NULL);
if (!hwndMain)
return FALSE;
// Get the command line and remove the call to this executable.
wchar_t *strCommandLine = _wcsdup(GetCommandLine());
const size_t strCommandLineLength = wcslen(strCommandLine);
size_t pos = 1;
bool quoted = false;
while (pos < strCommandLineLength) {
if (strCommandLine[pos] == L'"') {
quoted = !quoted;
} else if (!quoted && isSpaceOrTab(strCommandLine[pos])) {
while (isSpaceOrTab(strCommandLine[++pos]));
break;
}
++pos;
}
bool bSuccess = startProcess(strCommandLine + pos);
free(strCommandLine);
if (!bSuccess)
return 1;
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return (int) msg.wParam;
}
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
if (message == uiShutDownWindowMessage) {
GenerateConsoleCtrlEvent(CTRL_C_EVENT, 0);
PostQuitMessage(0);
return 0;
}
switch (message)
{
case WM_DESTROY:
PostQuitMessage(0);
break;
default:
return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;
}
bool isSpaceOrTab(const wchar_t c)
{
return c == L' ' || c == L'\t';
}
BOOL WINAPI ctrlHandler(DWORD /*dwCtrlType*/)
{
PostMessage(hwndMain, WM_DESTROY, 0, 0);
return TRUE;
}
DWORD WINAPI processWatcherThread(LPVOID lpParameter)
{
HANDLE hProcess = reinterpret_cast<HANDLE>(lpParameter);
WaitForSingleObject(hProcess, INFINITE);
PostMessage(hwndMain, WM_DESTROY, 0, 0);
return 0;
}
bool startProcess(wchar_t *pCommandLine)
{
SECURITY_ATTRIBUTES sa = {0};
sa.nLength = sizeof(sa);
sa.bInheritHandle = TRUE;
STARTUPINFO si = {0};
si.cb = sizeof(si);
PROCESS_INFORMATION pi;
DWORD dwCreationFlags = 0;
BOOL bSuccess = CreateProcess(NULL, pCommandLine, &sa, &sa, TRUE, dwCreationFlags, NULL, NULL, &si, &pi);
if (!bSuccess) {
fwprintf(stderr, L"qtcreator_ctrlc_stub: Command line failed: %s\n", pCommandLine);
return false;
}
HANDLE hThread = CreateThread(NULL, 0, processWatcherThread, reinterpret_cast<void*>(pi.hProcess), 0, NULL);
if (!hThread) {
fwprintf(stderr, L"qtcreator_ctrlc_stub: The watch dog thread cannot be started.\n");
return false;
}
CloseHandle(hThread);
return true;
}
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