* libvlc.h: main libvlc header
*****************************************************************************
* Copyright (C) 1998-2002 VideoLAN
- * $Id: libvlc.h,v 1.89 2003/09/24 21:31:54 gbazin Exp $
+ * $Id: libvlc.h,v 1.90 2003/09/29 17:36:35 gbazin Exp $
*
* Authors: Vincent Seguin <seguin@via.ecp.fr>
* Samuel Hocevar <sam@zoy.org>
#define DEMUX_LONGTEXT N_( \
"This is a legacy entry to let you configure demux modules")
+#define ONEINSTANCE_TEXT N_("Allow only one running instance of VLC")
+#define ONEINSTANCE_LONGTEXT N_( \
+ "Allowing only one running instance of VLC can sometimes be useful, " \
+ "for instance if you associated VLC with some media types and you " \
+ "don't want a new instance of VLC to be opened each time you " \
+ "double-click on a file in the explorer. This option will allow you " \
+ "to play the file with the already running instance or enqueue it.")
+
#define HPRIORITY_TEXT N_("Increase the priority of the process")
#define HPRIORITY_LONGTEXT N_( \
"Increasing the priority of the process will very likely improve your " \
add_module( "demux", "demux", NULL, NULL, DEMUX_TEXT, DEMUX_LONGTEXT, VLC_TRUE );
#if defined(WIN32)
+ add_bool( "one-instance", 0, NULL, ONEINSTANCE_TEXT, ONEINSTANCE_LONGTEXT, VLC_TRUE );
add_bool( "high-priority", 1, NULL, HPRIORITY_TEXT, HPRIORITY_LONGTEXT, VLC_TRUE );
add_bool( "fast-mutex", 0, NULL, FAST_MUTEX_TEXT, FAST_MUTEX_LONGTEXT, VLC_TRUE );
add_integer( "win9x-cv-method", 0, NULL, WIN9X_CV_TEXT, WIN9X_CV_LONGTEXT, VLC_TRUE );
* win32_specific.c: Win32 specific features
*****************************************************************************
* Copyright (C) 2001 VideoLAN
- * $Id: win32_specific.c,v 1.24 2003/07/31 21:46:37 gbazin Exp $
+ * $Id: win32_specific.c,v 1.25 2003/09/29 17:36:35 gbazin Exp $
*
* Authors: Samuel Hocevar <sam@zoy.org>
* Gildas Bazin <gbazin@netcourrier.com>
#include <stdlib.h> /* free() */
#include <vlc/vlc.h>
+#include "vlc_playlist.h"
+
+#ifdef WIN32 /* optind, getopt(), included in unistd.h */
+# include "../extras/getopt.h"
+#endif
#if !defined( UNDER_CE )
# include <fcntl.h>
/*****************************************************************************
* system_Configure: check for system specific configuration options.
*****************************************************************************/
-void system_Configure( vlc_t *p_this )
+static void IPCHelperThread( vlc_object_t * );
+LRESULT CALLBACK WMCOPYWNDPROC( HWND, UINT, WPARAM, LPARAM );
+
+void system_Configure( vlc_t *p_this, int *pi_argc, char *ppsz_argv[] )
{
#if !defined( UNDER_CE )
p_this->p_libvlc->b_fast_mutex = config_GetInt( p_this, "fast-mutex" );
msg_Dbg( p_this, "raised process priority" );
}
else
- msg_Dbg( p_this, "raised process priority" );
+ msg_Dbg( p_this, "raised process priority" );
+
+ if( config_GetInt( p_this, "one-instance" ) )
+ {
+ HANDLE hmutex;
+
+ msg_Info( p_this, "One instance mode ENABLED");
+
+ /* Use a named mutex to check if another instance is already running */
+ if( ( hmutex = CreateMutex( NULL, TRUE, "VLC ipc "VERSION ) ) == NULL )
+ {
+ /* Failed for some reason. Just ignore the option and go on as
+ * normal. */
+ msg_Err( p_this, "One instance mode DISABLED "
+ "(mutex couldn't be created)" );
+ return;
+ }
+
+ if( GetLastError() != ERROR_ALREADY_EXISTS )
+ {
+ /* We are the 1st instance. */
+ vlc_object_t *p_helper =
+ (vlc_object_t *)vlc_object_create( p_this, sizeof(vlc_object_t) );
+
+ /* Run the helper thread */
+ if( vlc_thread_create( p_helper, "IPC helper", IPCHelperThread,
+ VLC_THREAD_PRIORITY_LOW, VLC_TRUE ) )
+ {
+ msg_Err( p_this, "One instance mode DISABLED "
+ "(IPC helper thread couldn't be created)" );
+
+ }
+
+ /* Initialization done.
+ * Release the mutex to unblock other instances */
+ ReleaseMutex( hmutex );
+ }
+ else
+ {
+ /* Another instance is running */
+
+ HWND ipcwindow;
+
+ /* Wait until the 1st instance is initialized */
+ WaitForSingleObject( hmutex, INFINITE );
+
+ /* Locate the window created by the IPC helper thread of the
+ * 1st instance */
+ if( ( ipcwindow = FindWindow( NULL, "VLC ipc "VERSION ) )
+ == NULL )
+ {
+ msg_Err( p_this, "One instance mode DISABLED "
+ "(couldn't find 1st instance of program)" );
+ ReleaseMutex( hmutex );
+ return;
+ }
+
+ /* We assume that the remaining parameters are filenames
+ * and their input options */
+ if( *pi_argc - 1 >= optind )
+ {
+ COPYDATASTRUCT wm_data;
+ int i_opt, i_data;
+ char *p_data;
+
+ i_data = sizeof(int);
+ for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
+ {
+ i_data += sizeof(int);
+ i_data += strlen( ppsz_argv[ i_opt ] ) + 1;
+ }
+
+ p_data = (char *)malloc( i_data );
+ *((int *)&p_data[0]) = *pi_argc - optind;
+ i_data = sizeof(int);
+ for( i_opt = optind; i_opt < *pi_argc; i_opt++ )
+ {
+ int i_len = strlen( ppsz_argv[ i_opt ] ) + 1;
+ *((int *)&p_data[i_data]) = i_len;
+ i_data += sizeof(int);
+ memcpy( &p_data[i_data], ppsz_argv[ i_opt ], i_len );
+ i_data += i_len;
+ }
+
+ /* Send our playlist items to the 1st instance */
+ wm_data.dwData = 0;
+ wm_data.cbData = i_data;
+ wm_data.lpData = p_data;
+ SendMessage( ipcwindow, WM_COPYDATA, 0, (LPARAM)&wm_data );
+ }
+
+ /* Initialization done.
+ * Release the mutex to unblock other instances */
+ ReleaseMutex( hmutex );
+
+ /* Bye bye */
+ system_End( p_this );
+ exit( 0 );
+ }
+ }
+
#endif
}
+static void IPCHelperThread( vlc_object_t *p_this )
+{
+ HWND ipcwindow;
+ MSG message;
+
+ ipcwindow =
+ CreateWindow( "STATIC", /* name of window class */
+ "VLC ipc "VERSION, /* window title bar text */
+ 0, /* window style */
+ 0, /* default X coordinate */
+ 0, /* default Y coordinate */
+ 0, /* window width */
+ 0, /* window height */
+ NULL, /* no parent window */
+ NULL, /* no menu in this window */
+ GetModuleHandle(NULL), /* handle of this program instance */
+ NULL ); /* sent to WM_CREATE */
+
+ SetWindowLong( ipcwindow, GWL_WNDPROC, (LONG)WMCOPYWNDPROC );
+ SetWindowLong( ipcwindow, GWL_USERDATA, (LONG)p_this );
+
+ /* Signal the creation of the thread and events queue */
+ vlc_thread_ready( p_this );
+
+ while( GetMessage( &message, NULL, 0, 0 ) )
+ {
+ TranslateMessage( &message );
+ DispatchMessage( &message );
+ }
+}
+
+LRESULT CALLBACK WMCOPYWNDPROC( HWND hwnd, UINT uMsg, WPARAM wParam,
+ LPARAM lParam )
+{
+ if( uMsg == WM_COPYDATA )
+ {
+ COPYDATASTRUCT *pwm_data = (COPYDATASTRUCT*)lParam;
+ vlc_object_t *p_this;
+ playlist_t *p_playlist;
+
+ p_this = (vlc_object_t *)GetWindowLong( hwnd, GWL_USERDATA );
+
+ if( !p_this ) return 0;
+
+ /* Add files to the playlist */
+ p_playlist = (playlist_t *)vlc_object_find( p_this,
+ VLC_OBJECT_PLAYLIST,
+ FIND_ANYWHERE );
+ if( !p_playlist ) return 0;
+
+ if( pwm_data->lpData )
+ {
+ int i_argc, i_data, i_opt, i_options;
+ char **ppsz_argv;
+ char *p_data = (char *)pwm_data->lpData;
+
+ i_argc = *((int *)&p_data[0]);
+ ppsz_argv = (char **)malloc( i_argc * sizeof(char *) );
+ i_data = sizeof(int);
+ for( i_opt = 0; i_opt < i_argc; i_opt++ )
+ {
+ ppsz_argv[i_opt] = &p_data[i_data + sizeof(int)];
+ i_data += *((int *)&p_data[i_data]);
+ i_data += sizeof(int);
+ }
+
+ for( i_opt = 0; i_opt < i_argc; i_opt++ )
+ {
+ i_options = 0;
+
+ /* Count the input options */
+ while( i_opt + i_options + 1 < i_argc &&
+ *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
+ {
+ i_options++;
+ }
+
+ playlist_Add( p_playlist, ppsz_argv[ i_opt ],
+ (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
+ i_options, PLAYLIST_APPEND | (i_opt? 0 : PLAYLIST_GO),
+ PLAYLIST_END );
+
+ i_opt += i_options;
+ }
+
+ free( ppsz_argv );
+ }
+
+ vlc_object_release( p_playlist );
+ }
+
+ return DefWindowProc( hwnd, uMsg, wParam, lParam );
+}
+
/*****************************************************************************
* system_End: terminate winsock.
*****************************************************************************/
projects / vlc / commitdiff