1 /*****************************************************************************
2 * win32_specific.c: Win32 specific features
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
30 #include <vlc_common.h>
31 #include "../libvlc.h"
32 #include <vlc_playlist.h>
33 #include <vlc_charset.h>
35 #include "../extras/getopt.h"
37 #if !defined( UNDER_CE )
40 # include <mmsystem.h>
45 /*****************************************************************************
46 * system_Init: initialize winsock and misc other things.
47 *****************************************************************************/
48 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
52 /* Get our full path */
53 char psz_path[MAX_PATH];
56 wchar_t psz_wpath[MAX_PATH];
57 if( GetModuleFileName( NULL, psz_wpath, MAX_PATH ) )
59 WideCharToMultiByte( CP_ACP, 0, psz_wpath, -1,
60 psz_path, MAX_PATH, NULL, NULL );
62 else psz_path[0] = '\0';
64 if( (psz_vlc = strrchr( psz_path, '\\' )) ) *psz_vlc = '\0';
68 /* remove trailing \.libs from executable dir path if seen,
69 we assume we are running vlc through libtool wrapper in build dir */
70 int offset = strlen(psz_path)-sizeof("\\.libs")+1;
73 psz_vlc = psz_path+offset;
74 if( ! strcmp(psz_vlc, "\\.libs") ) *psz_vlc = '\0';
79 vlc_global()->psz_vlcpath = strdup( psz_path );
81 /* Set the default file-translation mode */
82 #if !defined( UNDER_CE )
84 _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
89 /* Call mdate() once to make sure it is initialized properly */
92 /* WinSock Library Init. */
93 if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
95 /* Aah, pretty useless check, we should always have Winsock 2.2
96 * since it appeared in Win98. */
97 if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
98 /* We could not find a suitable WinSock DLL. */
101 /* Everything went ok. */
105 /* Let's try with WinSock 1.1 */
106 if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
108 /* Confirm that the WinSock DLL supports 1.1.*/
109 if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
110 /* We could not find a suitable WinSock DLL. */
113 /* Everything went ok. */
117 fprintf( stderr, "error: can't initialize WinSocks\n" );
120 /*****************************************************************************
121 * system_Configure: check for system specific configuration options.
122 *****************************************************************************/
123 static void IPCHelperThread( vlc_object_t * );
124 LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
132 void system_Configure( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
134 #if !defined( UNDER_CE )
135 /* Raise default priority of the current process */
136 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
137 # define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
139 if( config_GetInt( p_this, "high-priority" ) )
141 if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
142 || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
144 msg_Dbg( p_this, "raised process priority" );
148 msg_Dbg( p_this, "could not raise process priority" );
152 if( config_GetInt( p_this, "one-instance" )
153 || ( config_GetInt( p_this, "one-instance-when-started-from-file" )
154 && config_GetInt( p_this, "started-from-file" ) ) )
158 msg_Info( p_this, "one instance mode ENABLED");
160 /* Use a named mutex to check if another instance is already running */
161 if( !( hmutex = CreateMutex( 0, TRUE, L"VLC ipc "VERSION ) ) )
163 /* Failed for some reason. Just ignore the option and go on as
165 msg_Err( p_this, "one instance mode DISABLED "
166 "(mutex couldn't be created)" );
170 if( GetLastError() != ERROR_ALREADY_EXISTS )
172 /* We are the 1st instance. */
173 static const char typename[] = "ipc helper";
174 vlc_object_t *p_helper =
175 vlc_custom_create( p_this, sizeof(vlc_object_t),
176 VLC_OBJECT_GENERIC, typename );
178 /* Run the helper thread */
179 if( vlc_thread_create( p_helper, "IPC helper", IPCHelperThread,
180 VLC_THREAD_PRIORITY_LOW, true ) )
182 msg_Err( p_this, "one instance mode DISABLED "
183 "(IPC helper thread couldn't be created)" );
187 /* Initialization done.
188 * Release the mutex to unblock other instances */
189 ReleaseMutex( hmutex );
193 /* Another instance is running */
197 /* Wait until the 1st instance is initialized */
198 WaitForSingleObject( hmutex, INFINITE );
200 /* Locate the window created by the IPC helper thread of the
202 if( !( ipcwindow = FindWindow( 0, L"VLC ipc "VERSION ) ) )
204 msg_Err( p_this, "one instance mode DISABLED "
205 "(couldn't find 1st instance of program)" );
206 ReleaseMutex( hmutex );
210 /* We assume that the remaining parameters are filenames
211 * and their input options */
212 if( *pi_argc - 1 >= optind )
214 COPYDATASTRUCT wm_data;
216 vlc_ipc_data_t *p_data;
217 size_t i_data = sizeof (*p_data);
219 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
221 i_data += sizeof (size_t);
222 i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
225 p_data = malloc( i_data );
226 p_data->argc = *pi_argc - optind;
227 p_data->enqueue = config_GetInt( p_this, "playlist-enqueue" );
229 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
231 size_t i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
232 /* Windows will never switch to an architecture
233 * with stronger alignment requirements, right. */
234 *((size_t *)(p_data->data + i_data)) = i_len;
235 i_data += sizeof (size_t);
236 memcpy( &p_data->data[i_data], ppsz_argv[ i_opt ], i_len );
239 i_data += sizeof (*p_data);
241 /* Send our playlist items to the 1st instance */
243 wm_data.cbData = i_data;
244 wm_data.lpData = p_data;
245 SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
248 /* Initialization done.
249 * Release the mutex to unblock other instances */
250 ReleaseMutex( hmutex );
253 system_End( p_this );
261 static void IPCHelperThread( vlc_object_t *p_this )
267 CreateWindow( L"STATIC", /* name of window class */
268 L"VLC ipc "VERSION, /* window title bar text */
269 0, /* window style */
270 0, /* default X coordinate */
271 0, /* default Y coordinate */
272 0, /* window width */
273 0, /* window height */
274 NULL, /* no parent window */
275 NULL, /* no menu in this window */
276 GetModuleHandle(NULL), /* handle of this program instance */
277 NULL ); /* sent to WM_CREATE */
279 SetWindowLongPtr( ipcwindow, GWLP_WNDPROC, (LRESULT)WMCOPYWNDPROC );
280 SetWindowLongPtr( ipcwindow, GWLP_USERDATA, (LONG_PTR)p_this );
282 /* Signal the creation of the thread and events queue */
283 vlc_thread_ready( p_this );
285 while( GetMessage( &message, NULL, 0, 0 ) )
287 TranslateMessage( &message );
288 DispatchMessage( &message );
292 LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
295 if( uMsg == WM_COPYDATA )
297 COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
298 vlc_object_t *p_this;
299 playlist_t *p_playlist;
301 p_this = (vlc_object_t *)
302 (uintptr_t)GetWindowLongPtr( hwnd, GWLP_USERDATA );
304 if( !p_this ) return 0;
306 /* Add files to the playlist */
307 p_playlist = pl_Yield( p_this );
308 if( !p_playlist ) return 0;
310 if( pwm_data->lpData )
313 vlc_ipc_data_t *p_data = (vlc_ipc_data_t *)pwm_data->lpData;
315 int i_argc = p_data->argc, i_opt, i_options;
317 ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
318 for( i_opt = 0; i_opt < i_argc; i_opt++ )
320 ppsz_argv[i_opt] = p_data->data + i_data + sizeof(int);
321 i_data += sizeof(int) + *((int *)(p_data->data + i_data));
324 for( i_opt = 0; i_opt < i_argc; i_opt++ )
328 /* Count the input options */
329 while( i_opt + i_options + 1 < i_argc &&
330 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
334 playlist_AddExt( p_playlist, ppsz_argv[i_opt],
335 NULL, PLAYLIST_APPEND |
336 ( ( i_opt || p_data->enqueue ) ? 0 : PLAYLIST_GO ),
338 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
339 i_options, true, pl_Unlocked );
347 vlc_object_release( p_playlist );
350 return DefWindowProc( hwnd, uMsg, wParam, lParam );
353 /*****************************************************************************
354 * system_End: terminate winsock.
355 *****************************************************************************/
356 void system_End( libvlc_int_t *p_this )
358 if( p_this && vlc_global() )
360 free( vlc_global()->psz_vlcpath );
361 vlc_global()->psz_vlcpath = NULL;
364 #if !defined( UNDER_CE )