2 * Copyright (C) 2006 Alexandre Julliard
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
27 #include "wine/debug.h"
31 WINE_DEFAULT_DEBUG_CHANNEL(wineboot);
33 #define MESSAGE_TIMEOUT 5000
42 static UINT win_count;
44 static struct window_info *windows;
45 static DWORD desktop_pid;
47 /* store a new window; callback for EnumWindows */
48 static BOOL CALLBACK enum_proc( HWND hwnd, LPARAM lp )
50 if (win_count >= win_max)
52 UINT new_count = win_max * 2;
53 struct window_info *new_win = HeapReAlloc( GetProcessHeap(), 0, windows,
54 new_count * sizeof(windows[0]) );
55 if (!new_win) return FALSE;
59 windows[win_count].hwnd = hwnd;
60 windows[win_count].tid = GetWindowThreadProcessId( hwnd, &windows[win_count].pid );
65 /* compare two window info structures; callback for qsort */
66 static int cmp_window( const void *ptr1, const void *ptr2 )
68 const struct window_info *info1 = ptr1;
69 const struct window_info *info2 = ptr2;
70 int ret = info1->pid - info2->pid;
71 if (!ret) ret = info1->tid - info2->tid;
75 /* build the list of all windows (FIXME: handle multiple desktops) */
76 static BOOL get_all_windows(void)
80 windows = HeapAlloc( GetProcessHeap(), 0, win_max * sizeof(windows[0]) );
81 if (!windows) return FALSE;
82 if (!EnumWindows( enum_proc, 0 )) return FALSE;
83 /* sort windows by processes */
84 qsort( windows, win_count, sizeof(windows[0]), cmp_window );
95 static void CALLBACK end_session_message_callback( HWND hwnd, UINT msg, ULONG_PTR data, LRESULT lresult )
97 struct callback_data *cb_data = (struct callback_data *)data;
99 WINE_TRACE( "received response %s hwnd %p lresult %ld\n",
100 msg == WM_QUERYENDSESSION ? "WM_QUERYENDSESSION" : (msg == WM_ENDSESSION ? "WM_ENDSESSION" : "Unknown"),
103 /* we only care if a WM_QUERYENDSESSION response is FALSE */
104 cb_data->result = cb_data->result && lresult;
106 /* cheap way of ref-counting callback_data whilst freeing memory at correct
108 if (!(cb_data->window_count--) && cb_data->timed_out)
109 HeapFree( GetProcessHeap(), 0, cb_data );
112 struct endtask_dlg_data
114 struct window_info *win;
118 static INT_PTR CALLBACK endtask_dlg_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
120 struct endtask_dlg_data *data;
126 SetWindowLongPtrW( hwnd, DWLP_USER, lparam );
127 data = (struct endtask_dlg_data *)lparam;
128 ShowWindow( hwnd, SW_SHOWNORMAL );
131 data = (struct endtask_dlg_data *)GetWindowLongPtrW( hwnd, DWLP_USER );
134 case MAKEWPARAM(IDOK, BN_CLICKED):
135 handle = OpenProcess( PROCESS_TERMINATE, FALSE, data->win[0].pid );
138 WINE_TRACE( "terminating process %04x\n", data->win[0].pid );
139 TerminateProcess( handle, 0 );
140 CloseHandle( handle );
143 case MAKEWPARAM(IDCANCEL, BN_CLICKED):
144 data->cancelled = TRUE;
152 /* Sends a message to a set of windows, displaying a dialog if the window
153 * doesn't respond to the message within a set amount of time.
154 * If the process has already been terminated, the function returns -1.
155 * If the user or application cancels the process, the function returns 0.
156 * Otherwise the function returns 0. */
157 static LRESULT send_messages_with_timeout_dialog(
158 struct window_info *win, UINT count, HANDLE process_handle,
159 UINT msg, WPARAM wparam, LPARAM lparam )
164 struct callback_data *cb_data;
165 HWND hwnd_endtask = NULL;
166 struct endtask_dlg_data dlg_data;
169 cb_data = HeapAlloc( GetProcessHeap(), 0, sizeof(*cb_data) );
173 cb_data->result = TRUE; /* we only care if a WM_QUERYENDSESSION response is FALSE */
174 cb_data->timed_out = FALSE;
175 cb_data->window_count = count;
178 dlg_data.cancelled = FALSE;
180 for (i = 0; i < count; i++)
182 if (!SendMessageCallbackW( win[i].hwnd, msg, wparam, lparam,
183 end_session_message_callback, (ULONG_PTR)cb_data ))
184 cb_data->window_count --;
187 start_time = GetTickCount();
190 DWORD current_time = GetTickCount();
192 ret = MsgWaitForMultipleObjects( 1, &process_handle, FALSE,
193 MESSAGE_TIMEOUT - (current_time - start_time),
195 if (ret == WAIT_OBJECT_0) /* process exited */
197 HeapFree( GetProcessHeap(), 0, cb_data );
201 else if (ret == WAIT_OBJECT_0 + 1) /* window message */
204 while(PeekMessageW( &msg, NULL, 0, 0, PM_REMOVE ))
206 if (!hwnd_endtask || !IsDialogMessageW( hwnd_endtask, &msg ))
208 TranslateMessage( &msg );
209 DispatchMessageW( &msg );
212 if (!cb_data->window_count)
214 result = cb_data->result;
215 HeapFree( GetProcessHeap(), 0, cb_data );
220 if (dlg_data.cancelled)
222 cb_data->timed_out = TRUE;
227 else if ((ret == WAIT_TIMEOUT) && !hwnd_endtask)
229 hwnd_endtask = CreateDialogParamW( GetModuleHandleW(NULL),
230 MAKEINTRESOURCEW(IDD_ENDTASK),
231 NULL, endtask_dlg_proc,
240 if (hwnd_endtask) DestroyWindow( hwnd_endtask );
244 /* send WM_QUERYENDSESSION and WM_ENDSESSION to all windows of a given process */
245 static DWORD_PTR send_end_session_messages( struct window_info *win, UINT count, UINT flags )
247 LRESULT result, end_session;
248 HANDLE process_handle;
251 /* FIXME: Use flags to implement EWX_FORCEIFHUNG! */
252 /* don't kill the desktop process */
253 if (win[0].pid == desktop_pid) return 1;
255 process_handle = OpenProcess( SYNCHRONIZE, FALSE, win[0].pid );
259 end_session = send_messages_with_timeout_dialog( win, count, process_handle,
260 WM_QUERYENDSESSION, 0, 0 );
261 if (end_session == -1)
263 CloseHandle( process_handle );
267 result = send_messages_with_timeout_dialog( win, count, process_handle,
268 WM_ENDSESSION, end_session, 0 );
269 if (end_session == 0)
271 CloseHandle( process_handle );
276 CloseHandle( process_handle );
280 /* Check whether the app quit on its own */
281 ret = WaitForSingleObject( process_handle, 0 );
282 CloseHandle( process_handle );
283 if (ret == WAIT_TIMEOUT)
285 /* If not, it returned from all WM_ENDSESSION and is finished cleaning
286 * up, so we can safely kill the process. */
287 HANDLE handle = OpenProcess( PROCESS_TERMINATE, FALSE, win[0].pid );
290 WINE_TRACE( "terminating process %04x\n", win[0].pid );
291 TerminateProcess( handle, 0 );
292 CloseHandle( handle );
298 /* close all top-level windows and terminate processes cleanly */
299 BOOL shutdown_close_windows( BOOL force )
301 UINT send_flags = force ? SMTO_ABORTIFHUNG : SMTO_NORMAL;
302 DWORD_PTR result = 1;
305 if (!get_all_windows()) return FALSE;
307 GetWindowThreadProcessId( GetDesktopWindow(), &desktop_pid );
309 for (i = n = 0; result && i < win_count; i++, n++)
311 if (n && windows[i-1].pid != windows[i].pid)
313 result = send_end_session_messages( windows + i - n, n, send_flags );
318 result = send_end_session_messages( windows + win_count - n, n, send_flags );
320 HeapFree( GetProcessHeap(), 0, windows );
322 return (result != 0);
325 /* forcibly kill all processes without any cleanup */
326 void kill_processes( BOOL kill_desktop )
330 HANDLE handle, snapshot;
331 PROCESSENTRY32W process;
333 GetWindowThreadProcessId( GetDesktopWindow(), &desktop_pid );
337 if (!(snapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 ))) break;
340 process.dwSize = sizeof(process);
341 for (res = Process32FirstW( snapshot, &process ); res; res = Process32NextW( snapshot, &process ))
343 if (process.th32ProcessID == GetCurrentProcessId()) continue;
344 if (process.th32ProcessID == desktop_pid) continue;
345 WINE_TRACE("killing process %04x %s\n",
346 process.th32ProcessID, wine_dbgstr_w(process.szExeFile) );
347 if (!(handle = OpenProcess( PROCESS_TERMINATE, FALSE, process.th32ProcessID )))
349 if (TerminateProcess( handle, 0 )) killed++;
350 CloseHandle( handle );
352 CloseHandle( snapshot );
353 } while (killed > 0);
355 if (desktop_pid && kill_desktop) /* do this last */
357 if ((handle = OpenProcess( PROCESS_TERMINATE, FALSE, desktop_pid )))
359 TerminateProcess( handle, 0 );
360 CloseHandle( handle );