1 /*****************************************************************************
2 * specific.c: Win32 specific initilization
3 *****************************************************************************
4 * Copyright (C) 2001-2004 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>
33 #include "../extras/getopt.h"
35 #if !defined( UNDER_CE )
38 # include <mmsystem.h>
43 /*****************************************************************************
44 * system_Init: initialize winsock and misc other things.
45 *****************************************************************************/
46 void system_Init( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
48 VLC_UNUSED( p_this ); VLC_UNUSED( pi_argc ); VLC_UNUSED( ppsz_argv );
50 MEMORY_BASIC_INFORMATION mbi;
52 /* Get our full path */
53 char psz_path[MAX_PATH];
56 wchar_t psz_wpath[MAX_PATH];
57 if( VirtualQuery(system_Init, &mbi, sizeof(mbi) ) )
59 HMODULE hMod = (HMODULE) mbi.AllocationBase;
60 if( GetModuleFileName( hMod, psz_wpath, MAX_PATH ) )
62 WideCharToMultiByte( CP_UTF8, 0, psz_wpath, -1,
63 psz_path, MAX_PATH, NULL, NULL );
65 else psz_path[0] = '\0';
68 psz_vlc = strrchr( psz_path, '\\' );
73 /* remove trailing \.libs from executable dir path if seen,
74 we assume we are running vlc through libtool wrapper in build dir */
75 size_t len = strlen(psz_path);
76 if( len >= 5 && !stricmp(psz_path + len - 5, "\\.libs" ) )
77 psz_path[len - 5] = '\0';
80 psz_vlcpath = strdup( psz_path );
82 /* Set the default file-translation mode */
83 #if !defined( UNDER_CE )
85 _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
90 /* Call mdate() once to make sure it is initialized properly */
93 /* WinSock Library Init. */
94 if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
96 /* Aah, pretty useless check, we should always have Winsock 2.2
97 * since it appeared in Win98. */
98 if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
99 /* We could not find a suitable WinSock DLL. */
102 /* Everything went ok. */
106 /* Let's try with WinSock 1.1 */
107 if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
109 /* Confirm that the WinSock DLL supports 1.1.*/
110 if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
111 /* We could not find a suitable WinSock DLL. */
114 /* Everything went ok. */
118 fprintf( stderr, "error: can't initialize WinSocks\n" );
121 /*****************************************************************************
122 * system_Configure: check for system specific configuration options.
123 *****************************************************************************/
124 static unsigned __stdcall IPCHelperThread( void * );
125 LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
126 static vlc_object_t *p_helper = NULL;
127 static unsigned long hIPCHelper;
128 static HANDLE hIPCHelperReady;
137 void system_Configure( libvlc_int_t *p_this, int *pi_argc, const char *ppsz_argv[] )
139 #if !defined( UNDER_CE )
140 /* Raise default priority of the current process */
141 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
142 # define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
144 if( var_InheritBool( p_this, "high-priority" ) )
146 if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
147 || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
149 msg_Dbg( p_this, "raised process priority" );
153 msg_Dbg( p_this, "could not raise process priority" );
157 if( var_InheritBool( p_this, "one-instance" )
158 || ( var_InheritBool( p_this, "one-instance-when-started-from-file" )
159 && var_InheritBool( p_this, "started-from-file" ) ) )
163 msg_Info( p_this, "one instance mode ENABLED");
165 /* Use a named mutex to check if another instance is already running */
166 if( !( hmutex = CreateMutex( 0, TRUE, L"VLC ipc "VERSION ) ) )
168 /* Failed for some reason. Just ignore the option and go on as
170 msg_Err( p_this, "one instance mode DISABLED "
171 "(mutex couldn't be created)" );
175 if( GetLastError() != ERROR_ALREADY_EXISTS )
177 /* We are the 1st instance. */
178 static const char typename[] = "ipc helper";
180 vlc_custom_create( p_this, sizeof(vlc_object_t),
181 VLC_OBJECT_GENERIC, typename );
183 /* Run the helper thread */
184 hIPCHelperReady = CreateEvent( NULL, FALSE, FALSE, NULL );
185 hIPCHelper = _beginthreadex( NULL, 0, IPCHelperThread, p_helper,
188 WaitForSingleObject( hIPCHelperReady, INFINITE );
191 msg_Err( p_this, "one instance mode DISABLED "
192 "(IPC helper thread couldn't be created)" );
193 vlc_object_release (p_helper);
196 vlc_object_attach (p_helper, p_this);
197 CloseHandle( hIPCHelperReady );
199 /* Initialization done.
200 * Release the mutex to unblock other instances */
201 ReleaseMutex( hmutex );
205 /* Another instance is running */
209 /* Wait until the 1st instance is initialized */
210 WaitForSingleObject( hmutex, INFINITE );
212 /* Locate the window created by the IPC helper thread of the
214 if( !( ipcwindow = FindWindow( 0, L"VLC ipc "VERSION ) ) )
216 msg_Err( p_this, "one instance mode DISABLED "
217 "(couldn't find 1st instance of program)" );
218 ReleaseMutex( hmutex );
222 /* We assume that the remaining parameters are filenames
223 * and their input options */
224 if( *pi_argc - 1 >= optind )
226 COPYDATASTRUCT wm_data;
228 vlc_ipc_data_t *p_data;
229 size_t i_data = sizeof (*p_data);
231 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
233 i_data += sizeof (size_t);
234 i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
237 p_data = malloc( i_data );
238 p_data->argc = *pi_argc - optind;
239 p_data->enqueue = var_InheritBool( p_this, "playlist-enqueue" );
241 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
243 size_t i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
244 /* Windows will never switch to an architecture
245 * with stronger alignment requirements, right. */
246 *((size_t *)(p_data->data + i_data)) = i_len;
247 i_data += sizeof (size_t);
248 memcpy( &p_data->data[i_data], ppsz_argv[ i_opt ], i_len );
251 i_data += sizeof (*p_data);
253 /* Send our playlist items to the 1st instance */
255 wm_data.cbData = i_data;
256 wm_data.lpData = p_data;
257 SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
260 /* Initialization done.
261 * Release the mutex to unblock other instances */
262 ReleaseMutex( hmutex );
265 system_End( p_this );
273 static unsigned __stdcall IPCHelperThread( void *data )
275 vlc_object_t *p_this = data;
280 CreateWindow( L"STATIC", /* name of window class */
281 L"VLC ipc "VERSION, /* window title bar text */
282 0, /* window style */
283 0, /* default X coordinate */
284 0, /* default Y coordinate */
285 0, /* window width */
286 0, /* window height */
287 NULL, /* no parent window */
288 NULL, /* no menu in this window */
289 GetModuleHandle(NULL), /* handle of this program instance */
290 NULL ); /* sent to WM_CREATE */
292 SetWindowLongPtr( ipcwindow, GWLP_WNDPROC, (LRESULT)WMCOPYWNDPROC );
293 SetWindowLongPtr( ipcwindow, GWLP_USERDATA, (LONG_PTR)p_this );
295 /* Signal the creation of the thread and events queue */
296 SetEvent( hIPCHelperReady );
298 while( GetMessage( &message, NULL, 0, 0 ) )
300 TranslateMessage( &message );
301 DispatchMessage( &message );
306 LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
309 if( uMsg == WM_QUIT )
311 PostQuitMessage( 0 );
313 else if( uMsg == WM_COPYDATA )
315 COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
316 vlc_object_t *p_this;
317 playlist_t *p_playlist;
319 p_this = (vlc_object_t *)
320 (uintptr_t)GetWindowLongPtr( hwnd, GWLP_USERDATA );
322 if( !p_this ) return 0;
324 /* Add files to the playlist */
325 p_playlist = pl_Hold( p_this );
326 if( !p_playlist ) return 0;
328 if( pwm_data->lpData )
331 vlc_ipc_data_t *p_data = (vlc_ipc_data_t *)pwm_data->lpData;
333 int i_argc = p_data->argc, i_opt, i_options;
335 ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
336 for( i_opt = 0; i_opt < i_argc; i_opt++ )
338 ppsz_argv[i_opt] = p_data->data + i_data + sizeof(int);
339 i_data += sizeof(int) + *((int *)(p_data->data + i_data));
342 for( i_opt = 0; i_opt < i_argc; i_opt++ )
346 /* Count the input options */
347 while( i_opt + i_options + 1 < i_argc &&
348 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
352 playlist_AddExt( p_playlist, ppsz_argv[i_opt],
353 NULL, PLAYLIST_APPEND |
354 ( ( i_opt || p_data->enqueue ) ? 0 : PLAYLIST_GO ),
357 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
358 VLC_INPUT_OPTION_TRUSTED,
367 vlc_object_release( p_playlist );
370 return DefWindowProc( hwnd, uMsg, wParam, lParam );
373 /*****************************************************************************
374 * system_End: terminate winsock.
375 *****************************************************************************/
376 void system_End( libvlc_int_t *p_this )
385 if (p_helper && p_helper->p_parent == VLC_OBJECT(p_this) )
387 /* this is the first instance (in a one-instance system)
388 * it is the owner of the helper thread
390 if( ( ipcwindow = FindWindow( 0, L"VLC ipc "VERSION ) ) != 0 )
392 SendMessage( ipcwindow, WM_QUIT, 0, 0 );
395 /* FIXME: thread-safety... */
396 vlc_object_release (p_helper);
400 #if !defined( UNDER_CE )