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 *****************************************************************************/
24 #include <string.h> /* strdup() */
25 #include <stdlib.h> /* free() */
28 #include <vlc_playlist.h>
29 #include <vlc_charset.h>
31 #ifdef WIN32 /* optind, getopt(), included in unistd.h */
32 # include "../extras/getopt.h"
35 #if !defined( UNDER_CE )
42 /*****************************************************************************
43 * system_Init: initialize winsock and misc other things.
44 *****************************************************************************/
45 void system_Init( libvlc_int_t *p_this, int *pi_argc, char *ppsz_argv[] )
49 /* Get our full path */
50 char psz_path[MAX_PATH];
53 #if defined( UNDER_CE )
54 wchar_t psz_wpath[MAX_PATH];
55 if( GetModuleFileName( NULL, psz_wpath, MAX_PATH ) )
57 WideCharToMultiByte( CP_ACP, 0, psz_wpath, -1,
58 psz_path, MAX_PATH, NULL, NULL );
60 else psz_path[0] = '\0';
65 GetFullPathName( ppsz_argv[0], MAX_PATH, psz_path, &psz_vlc );
67 else if( !GetModuleFileName( NULL, psz_path, MAX_PATH ) )
73 if( (psz_vlc = strrchr( psz_path, '\\' )) ) *psz_vlc = '\0';
75 p_this->p_libvlc_global->psz_vlcpath = strdup( psz_path );
77 /* Set the default file-translation mode */
78 #if !defined( UNDER_CE )
80 _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
83 /* Call mdate() once to make sure it is initialized properly */
86 /* WinSock Library Init. */
87 if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
89 /* Aah, pretty useless check, we should always have Winsock 2.2
90 * since it appeared in Win98. */
91 if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
92 /* We could not find a suitable WinSock DLL. */
95 /* Everything went ok. */
99 /* Let's try with WinSock 1.1 */
100 if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
102 /* Confirm that the WinSock DLL supports 1.1.*/
103 if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
104 /* We could not find a suitable WinSock DLL. */
107 /* Everything went ok. */
111 fprintf( stderr, "error: can't initialize WinSocks\n" );
114 /*****************************************************************************
115 * system_Configure: check for system specific configuration options.
116 *****************************************************************************/
117 static void IPCHelperThread( vlc_object_t * );
118 LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
120 void system_Configure( libvlc_int_t *p_this, int *pi_argc, char *ppsz_argv[] )
122 #if !defined( UNDER_CE )
123 p_this->p_libvlc_global->b_fast_mutex = config_GetInt( p_this, "fast-mutex" );
124 p_this->p_libvlc_global->i_win9x_cv = config_GetInt( p_this, "win9x-cv-method" );
126 /* Raise default priority of the current process */
127 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
128 # define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
130 if( config_GetInt( p_this, "high-priority" ) )
132 if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
133 || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
135 msg_Dbg( p_this, "raised process priority" );
139 msg_Dbg( p_this, "could not raise process priority" );
143 if( config_GetInt( p_this, "one-instance" )
144 || ( config_GetInt( p_this, "one-instance-when-started-from-file" )
145 && config_GetInt( p_this, "started-from-file" ) ) )
149 msg_Info( p_this, "one instance mode ENABLED");
151 /* Use a named mutex to check if another instance is already running */
152 if( !( hmutex = CreateMutex( 0, TRUE, _T("VLC ipc ") _T(VERSION) ) ) )
154 /* Failed for some reason. Just ignore the option and go on as
156 msg_Err( p_this, "one instance mode DISABLED "
157 "(mutex couldn't be created)" );
161 if( GetLastError() != ERROR_ALREADY_EXISTS )
163 /* We are the 1st instance. */
164 vlc_object_t *p_helper =
165 (vlc_object_t *)vlc_object_create( p_this, sizeof(vlc_object_t) );
167 /* Run the helper thread */
168 if( vlc_thread_create( p_helper, "IPC helper", IPCHelperThread,
169 VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
171 msg_Err( p_this, "one instance mode DISABLED "
172 "(IPC helper thread couldn't be created)" );
176 /* Initialization done.
177 * Release the mutex to unblock other instances */
178 ReleaseMutex( hmutex );
182 /* Another instance is running */
186 /* Wait until the 1st instance is initialized */
187 WaitForSingleObject( hmutex, INFINITE );
189 /* Locate the window created by the IPC helper thread of the
191 if( !( ipcwindow = FindWindow( 0, _T("VLC ipc ") _T(VERSION) ) ) )
193 msg_Err( p_this, "one instance mode DISABLED "
194 "(couldn't find 1st instance of program)" );
195 ReleaseMutex( hmutex );
199 /* We assume that the remaining parameters are filenames
200 * and their input options */
201 if( *pi_argc - 1 >= optind )
203 COPYDATASTRUCT wm_data;
207 i_data = sizeof(int);
208 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
210 i_data += sizeof(int);
211 i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
214 p_data = (char *)malloc( i_data );
215 *((int *)&p_data[0]) = *pi_argc - optind;
216 i_data = sizeof(int);
217 for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
219 int i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
220 *((int *)&p_data[i_data]) = i_len;
221 i_data += sizeof(int);
222 memcpy( &p_data[i_data], ppsz_argv[ i_opt ], i_len );
226 /* Send our playlist items to the 1st instance */
228 wm_data.cbData = i_data;
229 wm_data.lpData = p_data;
230 SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
233 /* Initialization done.
234 * Release the mutex to unblock other instances */
235 ReleaseMutex( hmutex );
238 system_End( p_this );
246 static void IPCHelperThread( vlc_object_t *p_this )
252 CreateWindow( _T("STATIC"), /* name of window class */
253 _T("VLC ipc ") _T(VERSION), /* window title bar text */
254 0, /* window style */
255 0, /* default X coordinate */
256 0, /* default Y coordinate */
257 0, /* window width */
258 0, /* window height */
259 NULL, /* no parent window */
260 NULL, /* no menu in this window */
261 GetModuleHandle(NULL), /* handle of this program instance */
262 NULL ); /* sent to WM_CREATE */
264 SetWindowLong( ipcwindow, GWL_WNDPROC, (LONG)WMCOPYWNDPROC );
265 SetWindowLong( ipcwindow, GWL_USERDATA, (LONG)p_this );
267 /* Signal the creation of the thread and events queue */
268 vlc_thread_ready( p_this );
270 while( GetMessage( &message, NULL, 0, 0 ) )
272 TranslateMessage( &message );
273 DispatchMessage( &message );
277 LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
280 if( uMsg == WM_COPYDATA )
282 COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
283 vlc_object_t *p_this;
284 playlist_t *p_playlist;
286 p_this = (vlc_object_t *)GetWindowLong( hwnd, GWL_USERDATA );
288 if( !p_this ) return 0;
290 /* Add files to the playlist */
291 p_playlist = (playlist_t *)vlc_object_find( p_this,
294 if( !p_playlist ) return 0;
296 if( pwm_data->lpData )
298 int i_argc, i_data, i_opt, i_options;
300 char *p_data = (char *)pwm_data->lpData;
302 i_argc = *((int *)&p_data[0]);
303 ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
304 i_data = sizeof(int);
305 for( i_opt = 0; i_opt < i_argc; i_opt++ )
307 ppsz_argv[i_opt] = &p_data[i_data + sizeof(int)];
308 i_data += *((int *)&p_data[i_data]);
309 i_data += sizeof(int);
312 for( i_opt = 0; i_opt < i_argc; i_opt++ )
316 /* Count the input options */
317 while( i_opt + i_options + 1 < i_argc &&
318 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
322 if( i_opt || config_GetInt( p_this, "playlist-enqueue" ) )
324 playlist_AddExt( p_playlist, ppsz_argv[i_opt],
325 NULL, PLAYLIST_APPEND ,
327 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
328 i_options, VLC_TRUE, VLC_FALSE );
330 playlist_AddExt( p_playlist, ppsz_argv[i_opt],
331 NULL, PLAYLIST_APPEND | PLAYLIST_GO,
333 (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
334 i_options, VLC_TRUE, VLC_FALSE );
343 vlc_object_release( p_playlist );
346 return DefWindowProc( hwnd, uMsg, wParam, lParam );
349 /*****************************************************************************
350 * system_End: terminate winsock.
351 *****************************************************************************/
352 void system_End( libvlc_int_t *p_this )
354 if( p_this && p_this->p_libvlc_global && p_this->p_libvlc_global->psz_vlcpath )
356 free( p_this->p_libvlc_global->psz_vlcpath );
357 p_this->p_libvlc_global->psz_vlcpath = NULL;