474 lines
13 KiB
C
474 lines
13 KiB
C
/*
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* USER initialization code
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*
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* Copyright 2000 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 <stdio.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "winreg.h"
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#include "tlhelp32.h"
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#include "controls.h"
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#include "user_private.h"
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#include "win.h"
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#include "wine/unicode.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(graphics);
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#define DESKTOP_ALL_ACCESS 0x01ff
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WORD USER_HeapSel = 0; /* USER heap selector */
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HMODULE user32_module = 0;
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static SYSLEVEL USER_SysLevel;
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static CRITICAL_SECTION_DEBUG critsect_debug =
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{
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0, 0, &USER_SysLevel.crst,
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{ &critsect_debug.ProcessLocksList, &critsect_debug.ProcessLocksList },
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0, 0, { (DWORD_PTR)(__FILE__ ": USER_SysLevel") }
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};
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static SYSLEVEL USER_SysLevel = { { &critsect_debug, -1, 0, 0, 0, 0 }, 2 };
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static HPALETTE (WINAPI *pfnGDISelectPalette)( HDC hdc, HPALETTE hpal, WORD bkgnd );
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static UINT (WINAPI *pfnGDIRealizePalette)( HDC hdc );
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static HPALETTE hPrimaryPalette;
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static DWORD exiting_thread_id;
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extern void WDML_NotifyThreadDetach(void);
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/***********************************************************************
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* USER_Lock
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*/
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void USER_Lock(void)
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{
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_EnterSysLevel( &USER_SysLevel );
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}
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/***********************************************************************
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* USER_Unlock
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*/
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void USER_Unlock(void)
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{
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_LeaveSysLevel( &USER_SysLevel );
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}
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/***********************************************************************
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* USER_CheckNotLock
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*
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* Make sure that we don't hold the user lock.
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*/
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void USER_CheckNotLock(void)
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{
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_CheckNotSysLevel( &USER_SysLevel );
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}
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/***********************************************************************
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* UserSelectPalette (Not a Windows API)
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*/
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static HPALETTE WINAPI UserSelectPalette( HDC hDC, HPALETTE hPal, BOOL bForceBackground )
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{
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WORD wBkgPalette = 1;
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if (!bForceBackground && (hPal != GetStockObject(DEFAULT_PALETTE)))
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{
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HWND hwnd = WindowFromDC( hDC );
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if (hwnd)
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{
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HWND hForeground = GetForegroundWindow();
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/* set primary palette if it's related to current active */
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if (hForeground == hwnd || IsChild(hForeground,hwnd))
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{
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wBkgPalette = 0;
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hPrimaryPalette = hPal;
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}
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}
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}
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return pfnGDISelectPalette( hDC, hPal, wBkgPalette);
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}
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/***********************************************************************
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* UserRealizePalette (USER32.@)
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*/
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UINT WINAPI UserRealizePalette( HDC hDC )
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{
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UINT realized = pfnGDIRealizePalette( hDC );
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/* do not send anything if no colors were changed */
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if (realized && GetCurrentObject( hDC, OBJ_PAL ) == hPrimaryPalette)
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{
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/* send palette change notification */
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HWND hWnd = WindowFromDC( hDC );
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if (hWnd) SendMessageTimeoutW( HWND_BROADCAST, WM_PALETTECHANGED, (WPARAM)hWnd, 0,
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SMTO_ABORTIFHUNG, 2000, NULL );
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}
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return realized;
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}
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/***********************************************************************
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* palette_init
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*
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* Patch the function pointers in GDI for SelectPalette and RealizePalette
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*/
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static void palette_init(void)
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{
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void **ptr;
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HMODULE module = GetModuleHandleA( "gdi32" );
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if (!module)
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{
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ERR( "cannot get GDI32 handle\n" );
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return;
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}
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if ((ptr = (void**)GetProcAddress( module, "pfnSelectPalette" )))
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pfnGDISelectPalette = InterlockedExchangePointer( ptr, UserSelectPalette );
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else ERR( "cannot find pfnSelectPalette in GDI32\n" );
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if ((ptr = (void**)GetProcAddress( module, "pfnRealizePalette" )))
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pfnGDIRealizePalette = InterlockedExchangePointer( ptr, UserRealizePalette );
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else ERR( "cannot find pfnRealizePalette in GDI32\n" );
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}
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/***********************************************************************
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* winstation_init
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*
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* Connect to the process window station and desktop.
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*/
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static void winstation_init(void)
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{
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static const WCHAR WinSta0[] = {'W','i','n','S','t','a','0',0};
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static const WCHAR Default[] = {'D','e','f','a','u','l','t',0};
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STARTUPINFOW info;
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WCHAR *winstation = NULL, *desktop = NULL, *buffer = NULL;
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HANDLE handle;
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GetStartupInfoW( &info );
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if (info.lpDesktop && *info.lpDesktop)
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{
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buffer = HeapAlloc( GetProcessHeap(), 0, (strlenW(info.lpDesktop) + 1) * sizeof(WCHAR) );
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strcpyW( buffer, info.lpDesktop );
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if ((desktop = strchrW( buffer, '\\' )))
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{
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*desktop++ = 0;
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winstation = buffer;
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}
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else desktop = buffer;
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}
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/* set winstation if explicitly specified, or if we don't have one yet */
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if (buffer || !GetProcessWindowStation())
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{
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handle = CreateWindowStationW( winstation ? winstation : WinSta0, 0, WINSTA_ALL_ACCESS, NULL );
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if (handle) SetProcessWindowStation( handle );
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}
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if (buffer || !GetThreadDesktop( GetCurrentThreadId() ))
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{
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handle = CreateDesktopW( desktop ? desktop : Default, NULL, NULL, 0, DESKTOP_ALL_ACCESS, NULL );
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if (handle) SetThreadDesktop( handle );
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}
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HeapFree( GetProcessHeap(), 0, buffer );
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}
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/***********************************************************************
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* USER initialisation routine
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*/
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static BOOL process_attach(void)
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{
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HINSTANCE16 instance;
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/* Create USER heap */
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if ((instance = LoadLibrary16( "USER.EXE" )) >= 32) USER_HeapSel = instance | 7;
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else
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{
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USER_HeapSel = GlobalAlloc16( GMEM_FIXED, 65536 );
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LocalInit16( USER_HeapSel, 32, 65534 );
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}
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/* some Win9x dlls expect keyboard to be loaded */
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if (GetVersion() & 0x80000000) LoadLibrary16( "keyboard.drv" );
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winstation_init();
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/* Initialize system colors and metrics */
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SYSPARAMS_Init();
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/* Setup palette function pointers */
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palette_init();
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/* Initialize built-in window classes */
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CLASS_RegisterBuiltinClasses();
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/* Initialize message spying */
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if (!SPY_Init()) return FALSE;
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return TRUE;
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}
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/**********************************************************************
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* USER_IsExitingThread
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*/
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BOOL USER_IsExitingThread( DWORD tid )
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{
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return (tid == exiting_thread_id);
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}
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/**********************************************************************
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* thread_detach
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*/
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static void thread_detach(void)
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{
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exiting_thread_id = GetCurrentThreadId();
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WDML_NotifyThreadDetach();
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WIN_DestroyThreadWindows( get_user_thread_info()->desktop );
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CloseHandle( get_user_thread_info()->server_queue );
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exiting_thread_id = 0;
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}
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/***********************************************************************
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* UserClientDllInitialize (USER32.@)
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*
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* USER dll initialisation routine (exported as UserClientDllInitialize for compatibility).
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*/
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BOOL WINAPI DllMain( HINSTANCE inst, DWORD reason, LPVOID reserved )
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{
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BOOL ret = TRUE;
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switch(reason)
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{
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case DLL_PROCESS_ATTACH:
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user32_module = inst;
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ret = process_attach();
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break;
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case DLL_THREAD_DETACH:
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thread_detach();
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break;
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case DLL_PROCESS_DETACH:
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USER_unload_driver();
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break;
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}
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return ret;
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}
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/***********************************************************************
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* USER_GetProcessHandleList(Internal)
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*/
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static HANDLE *USER_GetProcessHandleList(void)
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{
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DWORD count, i, n;
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HANDLE *list;
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PROCESSENTRY32 pe;
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HANDLE hSnapshot;
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BOOL r;
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hSnapshot = CreateToolhelp32Snapshot( TH32CS_SNAPPROCESS, 0 );
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if (!hSnapshot)
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{
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ERR("cannot create snapshot\n");
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return FALSE;
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}
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/* count the number of processes plus one */
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for (count=0; ;count++)
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{
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pe.dwSize = sizeof pe;
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if (count)
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r = Process32Next( hSnapshot, &pe );
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else
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r = Process32First( hSnapshot, &pe );
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if (!r)
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break;
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}
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/* allocate memory make a list of the process handles */
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list = HeapAlloc( GetProcessHeap(), 0, (count+1)*sizeof(HANDLE) );
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n=0;
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for (i=0; i<count; i++)
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{
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pe.dwSize = sizeof pe;
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if (i)
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r = Process32Next( hSnapshot, &pe );
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else
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r = Process32First( hSnapshot, &pe );
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if (!r)
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break;
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/* don't kill ourselves */
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if (GetCurrentProcessId() == pe.th32ProcessID )
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continue;
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/* open the process so we don't can track it */
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list[n] = OpenProcess( PROCESS_QUERY_INFORMATION|
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PROCESS_TERMINATE,
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FALSE, pe.th32ProcessID );
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/* check it didn't terminate already */
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if( list[n] )
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n++;
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}
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list[n]=0;
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CloseHandle( hSnapshot );
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if (!r)
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ERR("Error enumerating processes\n");
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TRACE("return %lu processes\n", n);
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return list;
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}
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/***********************************************************************
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* USER_KillProcesses (Internal)
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*/
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static DWORD USER_KillProcesses(void)
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{
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DWORD n, r, i;
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HANDLE *handles;
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const DWORD dwShutdownTimeout = 10000;
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TRACE("terminating other processes\n");
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/* kill it and add it to our list of object to wait on */
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handles = USER_GetProcessHandleList();
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for (n=0; handles && handles[n]; n++)
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TerminateProcess( handles[n], 0 );
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/* wait for processes to exit */
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for (i=0; i<n; i+=MAXIMUM_WAIT_OBJECTS)
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{
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int n_objs = ((n-i)>MAXIMUM_WAIT_OBJECTS) ? MAXIMUM_WAIT_OBJECTS : (n-i);
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r = WaitForMultipleObjects( n_objs, &handles[i], TRUE, dwShutdownTimeout );
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if (r==WAIT_TIMEOUT)
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ERR("wait failed!\n");
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}
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/* close the handles */
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for (i=0; i<n; i++)
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CloseHandle( handles[i] );
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HeapFree( GetProcessHeap(), 0, handles );
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return n;
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}
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/***********************************************************************
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* USER_DoShutdown (Internal)
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*/
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static void USER_DoShutdown(void)
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{
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DWORD i, n;
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const DWORD nRetries = 10;
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for (i=0; i<nRetries; i++)
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{
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n = USER_KillProcesses();
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TRACE("Killed %ld processes, attempt %ld\n", n, i);
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if(!n)
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break;
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}
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}
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/***********************************************************************
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* ExitWindowsEx (USER32.@)
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*/
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BOOL WINAPI ExitWindowsEx( UINT flags, DWORD reason )
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{
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TRACE("(%x,%lx)\n", flags, reason);
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if ((flags & EWX_FORCE) == 0)
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{
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HWND *list;
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/* We have to build a list of all windows first, as in EnumWindows */
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list = WIN_ListChildren( GetDesktopWindow() );
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if (list)
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{
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HWND *phwnd;
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UINT send_flags;
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DWORD_PTR result=1;
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/* Send a WM_QUERYENDSESSION / WM_ENDSESSION message pair to
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* each window. Note: it might be better to send all the
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* WM_QUERYENDSESSION messages, aggregate the results and then
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* send all the WM_ENDSESSION messages with the results but
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* that's not what Windows does.
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*/
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send_flags=(flags & EWX_FORCEIFHUNG) ? SMTO_ABORTIFHUNG : SMTO_NORMAL;
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for (phwnd = list; *phwnd; phwnd++)
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{
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/* Make sure that the window still exists */
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if (!IsWindow( *phwnd )) continue;
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if (SendMessageTimeoutW( *phwnd, WM_QUERYENDSESSION, 0, 0, send_flags, 0, &result))
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{
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DWORD_PTR dummy;
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SendMessageTimeoutW( *phwnd, WM_ENDSESSION, result, 0, send_flags, 0, &dummy );
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if (!result) break;
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}
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}
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HeapFree( GetProcessHeap(), 0, list );
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if (!result)
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return TRUE;
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}
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}
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/* USER_DoShutdown will kill all processes except the current process */
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USER_DoShutdown();
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if (flags & EWX_REBOOT)
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{
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WCHAR winebootW[] = { 'w','i','n','e','b','o','o','t',0 };
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PROCESS_INFORMATION pi;
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STARTUPINFOW si;
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memset( &si, 0, sizeof si );
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si.cb = sizeof si;
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if (CreateProcessW( NULL, winebootW, NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi ))
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{
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CloseHandle( pi.hProcess );
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CloseHandle( pi.hThread );
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}
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else
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MESSAGE("wine: Failed to start wineboot\n");
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}
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ExitProcess(0);
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return TRUE;
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}
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