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![André Hentschel](/assets/img/avatar_default.png)
Signed-off-by: André Hentschel <nerv@dawncrow.de> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
413 lines
12 KiB
C
413 lines
12 KiB
C
/*
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* Copyright (C) 2006 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <stdlib.h>
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#include "windef.h"
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#include "winbase.h"
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#include "winuser.h"
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#include "tlhelp32.h"
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#include "wine/debug.h"
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#include "resource.h"
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WINE_DEFAULT_DEBUG_CHANNEL(wineboot);
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#define MESSAGE_TIMEOUT 5000
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struct window_info
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{
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HWND hwnd;
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DWORD pid;
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DWORD tid;
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};
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static UINT win_count;
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static UINT win_max;
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static struct window_info *windows;
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static DWORD desktop_pid;
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/* store a new window; callback for EnumWindows */
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static BOOL CALLBACK enum_proc( HWND hwnd, LPARAM lp )
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{
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if (win_count >= win_max)
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{
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UINT new_count = win_max * 2;
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struct window_info *new_win = HeapReAlloc( GetProcessHeap(), 0, windows,
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new_count * sizeof(windows[0]) );
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if (!new_win) return FALSE;
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windows = new_win;
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win_max = new_count;
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}
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windows[win_count].hwnd = hwnd;
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windows[win_count].tid = GetWindowThreadProcessId( hwnd, &windows[win_count].pid );
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win_count++;
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return TRUE;
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}
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/* compare two window info structures; callback for qsort */
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static int cmp_window( const void *ptr1, const void *ptr2 )
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{
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const struct window_info *info1 = ptr1;
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const struct window_info *info2 = ptr2;
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int ret = info1->pid - info2->pid;
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if (!ret) ret = info1->tid - info2->tid;
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return ret;
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}
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/* build the list of all windows (FIXME: handle multiple desktops) */
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static BOOL get_all_windows(void)
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{
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win_count = 0;
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win_max = 16;
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windows = HeapAlloc( GetProcessHeap(), 0, win_max * sizeof(windows[0]) );
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if (!windows) return FALSE;
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if (!EnumWindows( enum_proc, 0 )) return FALSE;
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/* sort windows by processes */
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qsort( windows, win_count, sizeof(windows[0]), cmp_window );
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return TRUE;
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}
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struct callback_data
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{
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UINT window_count;
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BOOL timed_out;
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LRESULT result;
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};
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static void CALLBACK end_session_message_callback( HWND hwnd, UINT msg, ULONG_PTR data, LRESULT lresult )
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{
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struct callback_data *cb_data = (struct callback_data *)data;
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WINE_TRACE( "received response %s hwnd %p lresult %ld\n",
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msg == WM_QUERYENDSESSION ? "WM_QUERYENDSESSION" : (msg == WM_ENDSESSION ? "WM_ENDSESSION" : "Unknown"),
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hwnd, lresult );
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/* If the window was destroyed while the message was in its queue, SendMessageCallback()
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calls us with a default 0 result. Ignore it. */
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if (!lresult && !IsWindow( hwnd ))
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{
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WINE_TRACE( "window was destroyed; ignoring FALSE lresult\n" );
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lresult = TRUE;
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}
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/* we only care if a WM_QUERYENDSESSION response is FALSE */
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cb_data->result = cb_data->result && lresult;
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/* cheap way of ref-counting callback_data whilst freeing memory at correct
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* time */
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if (!(cb_data->window_count--) && cb_data->timed_out)
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HeapFree( GetProcessHeap(), 0, cb_data );
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}
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struct endtask_dlg_data
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{
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struct window_info *win;
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BOOL cancelled;
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BOOL terminated;
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};
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static INT_PTR CALLBACK endtask_dlg_proc( HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam )
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{
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struct endtask_dlg_data *data;
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HANDLE handle;
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switch (msg)
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{
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case WM_INITDIALOG:
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SetWindowLongPtrW( hwnd, DWLP_USER, lparam );
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ShowWindow( hwnd, SW_SHOWNORMAL );
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return TRUE;
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case WM_COMMAND:
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data = (struct endtask_dlg_data *)GetWindowLongPtrW( hwnd, DWLP_USER );
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switch (wparam)
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{
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case MAKEWPARAM(IDOK, BN_CLICKED):
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handle = OpenProcess( PROCESS_TERMINATE, FALSE, data->win[0].pid );
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if (handle)
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{
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WINE_TRACE( "terminating process %04x\n", data->win[0].pid );
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TerminateProcess( handle, 0 );
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CloseHandle( handle );
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data->terminated = TRUE;
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}
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return TRUE;
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case MAKEWPARAM(IDCANCEL, BN_CLICKED):
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data->cancelled = TRUE;
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return TRUE;
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}
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break;
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}
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return FALSE;
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}
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/* Sends a message to a set of windows, displaying a dialog if the window
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* doesn't respond to the message within a set amount of time.
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* If the process has already been terminated, the function returns -1.
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* If the user or application cancels the process, the function returns 0.
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* Otherwise the function returns 0. */
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static LRESULT send_messages_with_timeout_dialog(
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struct window_info *win, UINT count, HANDLE process_handle,
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UINT msg, WPARAM wparam, LPARAM lparam )
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{
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unsigned int i;
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DWORD ret;
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DWORD start_time;
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struct callback_data *cb_data;
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HWND hwnd_endtask = NULL;
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struct endtask_dlg_data dlg_data;
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LRESULT result;
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cb_data = HeapAlloc( GetProcessHeap(), 0, sizeof(*cb_data) );
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if (!cb_data)
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return 1;
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cb_data->result = TRUE; /* we only care if a WM_QUERYENDSESSION response is FALSE */
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cb_data->timed_out = FALSE;
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cb_data->window_count = count;
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dlg_data.win = win;
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dlg_data.terminated = FALSE;
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dlg_data.cancelled = FALSE;
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for (i = 0; i < count; i++)
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{
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if (!SendMessageCallbackW( win[i].hwnd, msg, wparam, lparam,
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end_session_message_callback, (ULONG_PTR)cb_data ))
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cb_data->window_count --;
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}
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start_time = GetTickCount();
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while (TRUE)
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{
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DWORD current_time = GetTickCount();
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ret = MsgWaitForMultipleObjects( 1, &process_handle, FALSE,
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MESSAGE_TIMEOUT - (current_time - start_time),
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QS_ALLINPUT );
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if (ret == WAIT_OBJECT_0) /* process exited */
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{
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HeapFree( GetProcessHeap(), 0, cb_data );
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result = 1;
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goto cleanup;
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}
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else if (ret == WAIT_OBJECT_0 + 1) /* window message */
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{
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MSG msg;
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while(PeekMessageW( &msg, NULL, 0, 0, PM_REMOVE ))
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{
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if (!hwnd_endtask || !IsDialogMessageW( hwnd_endtask, &msg ))
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{
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TranslateMessage( &msg );
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DispatchMessageW( &msg );
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}
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}
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if (!cb_data->window_count)
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{
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result = dlg_data.terminated || cb_data->result;
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HeapFree( GetProcessHeap(), 0, cb_data );
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if (!result)
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goto cleanup;
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break;
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}
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if (dlg_data.cancelled)
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{
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cb_data->timed_out = TRUE;
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result = 0;
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goto cleanup;
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}
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}
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else if ((ret == WAIT_TIMEOUT) && !hwnd_endtask)
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{
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hwnd_endtask = CreateDialogParamW( GetModuleHandleW(NULL),
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MAKEINTRESOURCEW(IDD_ENDTASK),
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NULL, endtask_dlg_proc,
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(LPARAM)&dlg_data );
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}
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else break;
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}
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result = 1;
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cleanup:
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if (hwnd_endtask) DestroyWindow( hwnd_endtask );
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return result;
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}
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/* send WM_QUERYENDSESSION and WM_ENDSESSION to all windows of a given process */
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static DWORD_PTR send_end_session_messages( struct window_info *win, UINT count, UINT flags )
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{
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LRESULT result, end_session;
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HANDLE process_handle;
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DWORD ret;
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/* FIXME: Use flags to implement EWX_FORCEIFHUNG! */
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/* don't kill the desktop process */
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if (win[0].pid == desktop_pid) return 1;
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process_handle = OpenProcess( SYNCHRONIZE, FALSE, win[0].pid );
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if (!process_handle)
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return 1;
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end_session = send_messages_with_timeout_dialog( win, count, process_handle,
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WM_QUERYENDSESSION, 0, 0 );
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if (end_session == -1)
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{
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CloseHandle( process_handle );
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return 1;
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}
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result = send_messages_with_timeout_dialog( win, count, process_handle,
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WM_ENDSESSION, end_session, 0 );
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if (end_session == 0)
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{
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CloseHandle( process_handle );
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return 0;
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}
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if (result == -1)
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{
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CloseHandle( process_handle );
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return 1;
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}
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/* Check whether the app quit on its own */
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ret = WaitForSingleObject( process_handle, 0 );
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CloseHandle( process_handle );
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if (ret == WAIT_TIMEOUT)
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{
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/* If not, it returned from all WM_ENDSESSION and is finished cleaning
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* up, so we can safely kill the process. */
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HANDLE handle = OpenProcess( PROCESS_TERMINATE, FALSE, win[0].pid );
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if (handle)
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{
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WINE_TRACE( "terminating process %04x\n", win[0].pid );
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TerminateProcess( handle, 0 );
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CloseHandle( handle );
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}
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}
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return 1;
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}
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/* close all top-level windows and terminate processes cleanly */
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BOOL shutdown_close_windows( BOOL force )
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{
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UINT send_flags = force ? SMTO_ABORTIFHUNG : SMTO_NORMAL;
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DWORD_PTR result = 1;
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UINT i, n;
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if (!get_all_windows()) return FALSE;
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GetWindowThreadProcessId( GetDesktopWindow(), &desktop_pid );
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for (i = n = 0; result && i < win_count; i++, n++)
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{
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if (n && windows[i-1].pid != windows[i].pid)
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{
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result = send_end_session_messages( windows + i - n, n, send_flags );
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n = 0;
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}
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}
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if (n && result)
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result = send_end_session_messages( windows + win_count - n, n, send_flags );
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HeapFree( GetProcessHeap(), 0, windows );
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return (result != 0);
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}
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static BOOL CALLBACK shutdown_one_desktop( LPWSTR name, LPARAM force )
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{
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HDESK hdesk;
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WINE_TRACE("Shutting down desktop %s\n", wine_dbgstr_w(name));
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hdesk = OpenDesktopW( name, 0, FALSE, GENERIC_ALL );
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if (hdesk == NULL)
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{
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WINE_ERR("Cannot open desktop %s, err=%i\n", wine_dbgstr_w(name), GetLastError());
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return FALSE;
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}
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if (!SetThreadDesktop( hdesk ))
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{
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CloseDesktop( hdesk );
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WINE_ERR("Cannot set thread desktop %s, err=%i\n", wine_dbgstr_w(name), GetLastError());
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return FALSE;
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}
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CloseDesktop( hdesk );
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return shutdown_close_windows( force );
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}
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BOOL shutdown_all_desktops( BOOL force )
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{
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BOOL ret;
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HDESK prev_desktop;
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prev_desktop = GetThreadDesktop(GetCurrentThreadId());
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ret = EnumDesktopsW( NULL, shutdown_one_desktop, (LPARAM)force );
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SetThreadDesktop(prev_desktop);
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return ret;
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}
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/* forcibly kill all processes without any cleanup */
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void kill_processes( BOOL kill_desktop )
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{
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BOOL res;
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UINT killed;
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HANDLE handle, snapshot;
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PROCESSENTRY32W process;
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GetWindowThreadProcessId( GetDesktopWindow(), &desktop_pid );
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do
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{
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if (!(snapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 ))) break;
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killed = 0;
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process.dwSize = sizeof(process);
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for (res = Process32FirstW( snapshot, &process ); res; res = Process32NextW( snapshot, &process ))
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{
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if (process.th32ProcessID == GetCurrentProcessId()) continue;
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if (process.th32ProcessID == desktop_pid) continue;
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WINE_TRACE("killing process %04x %s\n",
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process.th32ProcessID, wine_dbgstr_w(process.szExeFile) );
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if (!(handle = OpenProcess( PROCESS_TERMINATE, FALSE, process.th32ProcessID )))
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continue;
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if (TerminateProcess( handle, 0 )) killed++;
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CloseHandle( handle );
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}
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CloseHandle( snapshot );
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} while (killed > 0);
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if (desktop_pid && kill_desktop) /* do this last */
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{
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if ((handle = OpenProcess( PROCESS_TERMINATE, FALSE, desktop_pid )))
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{
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TerminateProcess( handle, 0 );
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CloseHandle( handle );
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}
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}
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}
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