1 /*****************************************************************************
2 * specific.c: Win32 specific initilization
3 *****************************************************************************
4 * Copyright (C) 2001-2004, 2010 the VideoLAN team
6 * Authors: Samuel Hocevar <sam@zoy.org>
7 * Gildas Bazin <gbazin@videolan.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
29 #include <vlc_common.h>
30 #include "../libvlc.h"
31 #include <vlc_playlist.h>
34 #include "../config/vlc_getopt.h"
36 #if !defined( UNDER_CE )
39 # include <mmsystem.h>
44 /*****************************************************************************
45 * system_Init: initialize winsock and misc other things.
46 *****************************************************************************/
47 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
49 VLC_UNUSED( p_this ); VLC_UNUSED( pi_argc ); VLC_UNUSED( ppsz_argv );
51 MEMORY_BASIC_INFORMATION mbi;
53 /* Get our full path */
54 char psz_path[MAX_PATH];
57 wchar_t psz_wpath[MAX_PATH];
58 if( VirtualQuery(system_Init, &mbi, sizeof(mbi) ) )
60 HMODULE hMod = (HMODULE) mbi.AllocationBase;
61 if( GetModuleFileName( hMod, psz_wpath, MAX_PATH ) )
63 WideCharToMultiByte( CP_UTF8, 0, psz_wpath, -1,
64 psz_path, MAX_PATH, NULL, NULL );
66 else psz_path[0] = '\0';
68 else psz_path[0] = '\0';
70 psz_vlc = strrchr( psz_path, '\\' );
75 /* remove trailing \.libs from executable dir path if seen,
76 we assume we are running vlc through libtool wrapper in build dir */
77 size_t len = strlen(psz_path);
78 if( len >= 5 && !stricmp(psz_path + len - 5, "\\.libs" ) )
79 psz_path[len - 5] = '\0';
82 psz_vlcpath = strdup( psz_path );
84 /* Set the default file-translation mode */
85 #if !defined( UNDER_CE )
87 _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
92 /* Call mdate() once to make sure it is initialized properly */
95 /* WinSock Library Init. */
96 if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
98 /* Aah, pretty useless check, we should always have Winsock 2.2
99 * since it appeared in Win98. */
100 if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
101 /* We could not find a suitable WinSock DLL. */
104 /* Everything went ok. */
108 /* Let's try with WinSock 1.1 */
109 if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
111 /* Confirm that the WinSock DLL supports 1.1.*/
112 if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
113 /* We could not find a suitable WinSock DLL. */
116 /* Everything went ok. */
120 fprintf( stderr, "error: can't initialize WinSocks\n" );
123 /*****************************************************************************
124 * system_Configure: check for system specific configuration options.
125 *****************************************************************************/
126 static unsigned __stdcall IPCHelperThread( void * );
127 LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
128 static vlc_object_t *p_helper = NULL;
129 static unsigned long hIPCHelper;
130 static HANDLE hIPCHelperReady;
139 void system_Configure( libvlc_int_t *p_this, int i_argc, const char *const ppsz_argv[] )
141 #if !defined( UNDER_CE )
142 /* Raise default priority of the current process */
143 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
144 # define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
146 if( var_InheritBool( p_this, "high-priority" ) )
148 if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
149 || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
151 msg_Dbg( p_this, "raised process priority" );
155 msg_Dbg( p_this, "could not raise process priority" );
159 if( var_InheritBool( p_this, "one-instance" )
160 || ( var_InheritBool( p_this, "one-instance-when-started-from-file" )
161 && var_InheritBool( p_this, "started-from-file" ) ) )
165 msg_Info( p_this, "one instance mode ENABLED");
167 /* Use a named mutex to check if another instance is already running */
168 if( !( hmutex = CreateMutex( 0, TRUE, L"VLC ipc "VERSION ) ) )
170 /* Failed for some reason. Just ignore the option and go on as
172 msg_Err( p_this, "one instance mode DISABLED "
173 "(mutex couldn't be created)" );
177 if( GetLastError() != ERROR_ALREADY_EXISTS )
179 /* We are the 1st instance. */
180 static const char typename[] = "ipc helper";
182 vlc_custom_create( p_this, sizeof(vlc_object_t),
183 VLC_OBJECT_GENERIC, typename );
185 /* Run the helper thread */
186 hIPCHelperReady = CreateEvent( NULL, FALSE, FALSE, NULL );
187 hIPCHelper = _beginthreadex( NULL, 0, IPCHelperThread, p_helper,
190 WaitForSingleObject( hIPCHelperReady, INFINITE );
193 msg_Err( p_this, "one instance mode DISABLED "
194 "(IPC helper thread couldn't be created)" );
195 vlc_object_release (p_helper);
198 vlc_object_attach (p_helper, p_this);
199 CloseHandle( hIPCHelperReady );
201 /* Initialization done.
202 * Release the mutex to unblock other instances */
203 ReleaseMutex( hmutex );
207 /* Another instance is running */
211 /* Wait until the 1st instance is initialized */
212 WaitForSingleObject( hmutex, INFINITE );
214 /* Locate the window created by the IPC helper thread of the
216 if( !( ipcwindow = FindWindow( 0, L"VLC ipc "VERSION ) ) )
218 msg_Err( p_this, "one instance mode DISABLED "
219 "(couldn't find 1st instance of program)" );
220 ReleaseMutex( hmutex );
224 /* We assume that the remaining parameters are filenames
225 * and their input options */
228 COPYDATASTRUCT wm_data;
230 vlc_ipc_data_t *p_data;
231 size_t i_data = sizeof (*p_data);
233 for( i_opt = 0; i_opt < i_argc; i_opt++ )
235 i_data += sizeof (size_t);
236 i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
239 p_data = malloc( i_data );
240 p_data->argc = i_argc;
241 p_data->enqueue = var_InheritBool( p_this, "playlist-enqueue" );
243 for( i_opt = 0; i_opt < i_argc; i_opt++ )
245 size_t i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
246 /* Windows will never switch to an architecture
247 * with stronger alignment requirements, right. */
248 *((size_t *)(p_data->data + i_data)) = i_len;
249 i_data += sizeof (size_t);
250 memcpy( &p_data->data[i_data], ppsz_argv[ i_opt ], i_len );
253 i_data += sizeof (*p_data);
255 /* Send our playlist items to the 1st instance */
257 wm_data.cbData = i_data;
258 wm_data.lpData = p_data;
259 SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
262 /* Initialization done.
263 * Release the mutex to unblock other instances */
264 ReleaseMutex( hmutex );
267 system_End( p_this );
275 static unsigned __stdcall IPCHelperThread( void *data )
277 vlc_object_t *p_this = data;
282 CreateWindow( L"STATIC", /* name of window class */
283 L"VLC ipc "VERSION, /* window title bar text */
284 0, /* window style */
285 0, /* default X coordinate */
286 0, /* default Y coordinate */
287 0, /* window width */
288 0, /* window height */
289 NULL, /* no parent window */
290 NULL, /* no menu in this window */
291 GetModuleHandle(NULL), /* handle of this program instance */
292 NULL ); /* sent to WM_CREATE */
294 SetWindowLongPtr( ipcwindow, GWLP_WNDPROC, (LRESULT)WMCOPYWNDPROC );
295 SetWindowLongPtr( ipcwindow, GWLP_USERDATA, (LONG_PTR)p_this );
297 /* Signal the creation of the thread and events queue */
298 SetEvent( hIPCHelperReady );
300 while( GetMessage( &message, NULL, 0, 0 ) )
302 TranslateMessage( &message );
303 DispatchMessage( &message );
308 LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
311 if( uMsg == WM_QUIT )
313 PostQuitMessage( 0 );
315 else if( uMsg == WM_COPYDATA )
317 COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
318 vlc_object_t *p_this;
319 playlist_t *p_playlist;
321 p_this = (vlc_object_t *)
322 (uintptr_t)GetWindowLongPtr( hwnd, GWLP_USERDATA );
324 if( !p_this ) return 0;
326 /* Add files to the playlist */
327 p_playlist = pl_Get( p_this );
329 if( pwm_data->lpData )
332 vlc_ipc_data_t *p_data = (vlc_ipc_data_t *)pwm_data->lpData;
334 int i_argc = p_data->argc, i_opt, i_options;
336 ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
337 for( i_opt = 0; i_opt < i_argc; i_opt++ )
339 ppsz_argv[i_opt] = p_data->data + i_data + sizeof(int);
340 i_data += sizeof(int) + *((int *)(p_data->data + i_data));
343 for( i_opt = 0; i_opt < i_argc; i_opt++ )
347 /* Count the input options */
348 while( i_opt + i_options + 1 < i_argc &&
349 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
354 char *psz_URI = make_URI( ppsz_argv[i_opt], NULL );
355 playlist_AddExt( p_playlist, psz_URI,
356 NULL, PLAYLIST_APPEND |
357 ( ( i_opt || p_data->enqueue ) ? 0 : PLAYLIST_GO ),
360 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
361 VLC_INPUT_OPTION_TRUSTED,
372 return DefWindowProc( hwnd, uMsg, wParam, lParam );
375 /*****************************************************************************
376 * system_End: terminate winsock.
377 *****************************************************************************/
378 void system_End( libvlc_int_t *p_this )
387 if (p_helper && p_helper->p_parent == VLC_OBJECT(p_this) )
389 /* this is the first instance (in a one-instance system)
390 * it is the owner of the helper thread
392 if( ( ipcwindow = FindWindow( 0, L"VLC ipc "VERSION ) ) != 0 )
394 SendMessage( ipcwindow, WM_QUIT, 0, 0 );
397 /* FIXME: thread-safety... */
398 vlc_object_release (p_helper);
402 #if !defined( UNDER_CE )