]> git.sesse.net Git - vlc/blobdiff - src/misc/win32_specific.c
Removes trailing spaces. Removes tabs.
[vlc] / src / misc / win32_specific.c
index 8af5d9fd26f6971e0dee4e76cab283a7c2a2c300..ff3c5e47dd8b26f9b20e87b8baaf2b19ca75136d 100644 (file)
@@ -1,11 +1,11 @@
 /*****************************************************************************
  * win32_specific.c: Win32 specific features
  *****************************************************************************
- * Copyright (C) 2001 VideoLAN
- * $Id: win32_specific.c,v 1.21 2003/02/17 05:50:31 sam Exp $
+ * Copyright (C) 2001-2004 the VideoLAN team
+ * $Id$
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
- *          Gildas Bazin <gbazin@netcourrier.com>
+ *          Gildas Bazin <gbazin@videolan.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  *****************************************************************************/
-#include <string.h>                                              /* strdup() */
-#include <stdlib.h>                                                /* free() */
 
 #include <vlc/vlc.h>
+#include "../libvlc.h"
+#include <vlc_playlist.h>
+#include <vlc_charset.h>
+
+#ifdef WIN32                       /* optind, getopt(), included in unistd.h */
+#   include "../extras/getopt.h"
+#endif
 
 #if !defined( UNDER_CE )
+#   include <io.h>
 #   include <fcntl.h>
-#   include <winsock2.h>
 #endif
 
+#include <winsock.h>
+
 /*****************************************************************************
  * system_Init: initialize winsock and misc other things.
  *****************************************************************************/
-void system_Init( vlc_t *p_this, int *pi_argc, char *ppsz_argv[] )
+void system_Init( libvlc_int_t *p_this, int *pi_argc, char *ppsz_argv[] )
 {
-#if !defined( UNDER_CE )
     WSADATA Data;
-    int i_err;
 
     /* Get our full path */
-    if( ppsz_argv[0] )
+    char psz_path[MAX_PATH];
+    char *psz_vlc;
+
+#if defined( UNDER_CE )
+    wchar_t psz_wpath[MAX_PATH];
+    if( GetModuleFileName( NULL, psz_wpath, MAX_PATH ) )
     {
-        char psz_path[MAX_PATH];
-        char *psz_vlc;
+        WideCharToMultiByte( CP_ACP, 0, psz_wpath, -1,
+                             psz_path, MAX_PATH, NULL, NULL );
+    }
+    else psz_path[0] = '\0';
 
+#else
+    if( ppsz_argv[0] )
+    {
         GetFullPathName( ppsz_argv[0], MAX_PATH, psz_path, &psz_vlc );
-
-        if( psz_vlc > psz_path && psz_vlc[-1] == '\\' )
-        {
-            psz_vlc[-1] = '\0';
-            p_this->p_libvlc->psz_vlcpath = strdup( psz_path );
-        }
-        else
-        {
-            p_this->p_libvlc->psz_vlcpath = strdup( "" );
-        }
     }
-    else
+    else if( !GetModuleFileName( NULL, psz_path, MAX_PATH ) )
     {
-        p_this->p_libvlc->psz_vlcpath = strdup( "" );
+        psz_path[0] = '\0';
     }
+#endif
 
-    /* WinSock Library Init. */
-    i_err = WSAStartup( MAKEWORD( 1, 1 ), &Data );
+    if( (psz_vlc = strrchr( psz_path, '\\' )) ) *psz_vlc = '\0';
 
-    if( i_err )
+#ifndef HAVE_RELEASE
     {
-        fprintf( stderr, "error: can't initiate WinSocks, error %i\n", i_err );
+        /* remove trailing \.libs from executable dir path if seen,
+           we assume we are running vlc through libtool wrapper in build dir */
+        int offset  = strlen(psz_path)-sizeof("\\.libs")+1;
+        if( offset > 0 )
+        {
+            psz_vlc = psz_path+offset;
+            if( ! strcmp(psz_vlc, "\\.libs") ) *psz_vlc = '\0';
+        }
     }
+#endif
+
+    vlc_global()->psz_vlcpath = strdup( psz_path );
 
     /* Set the default file-translation mode */
+#if !defined( UNDER_CE )
     _fmode = _O_BINARY;
+    _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
 #endif
+
+    /* Call mdate() once to make sure it is initialized properly */
+    mdate();
+
+    /* WinSock Library Init. */
+    if( !WSAStartup( MAKEWORD( 2, 2 ), &Data ) )
+    {
+        /* Aah, pretty useless check, we should always have Winsock 2.2
+         * since it appeared in Win98. */
+        if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 2 )
+            /* We could not find a suitable WinSock DLL. */
+            WSACleanup( );
+        else
+            /* Everything went ok. */
+            return;
+    }
+
+    /* Let's try with WinSock 1.1 */
+    if( !WSAStartup( MAKEWORD( 1, 1 ), &Data ) )
+    {
+        /* Confirm that the WinSock DLL supports 1.1.*/
+        if( LOBYTE( Data.wVersion ) != 1 || HIBYTE( Data.wVersion ) != 1 )
+            /* We could not find a suitable WinSock DLL. */
+            WSACleanup( );
+        else
+            /* Everything went ok. */
+            return;
+    }
+
+    fprintf( stderr, "error: can't initialize WinSocks\n" );
 }
 
 /*****************************************************************************
  * 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( libvlc_int_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" );
-    p_this->p_libvlc->i_win9x_cv = config_GetInt( p_this, "win9x-cv-method" );
-
     /* Raise default priority of the current process */
 #ifndef ABOVE_NORMAL_PRIORITY_CLASS
 #   define ABOVE_NORMAL_PRIORITY_CLASS 0x00008000
 #endif
-    if( !SetPriorityClass( GetCurrentProcess(),
-                          ABOVE_NORMAL_PRIORITY_CLASS ) )
+    if( config_GetInt( p_this, "high-priority" ) )
+    {
+        if( SetPriorityClass( GetCurrentProcess(), ABOVE_NORMAL_PRIORITY_CLASS )
+             || SetPriorityClass( GetCurrentProcess(), HIGH_PRIORITY_CLASS ) )
+        {
+            msg_Dbg( p_this, "raised process priority" );
+        }
+        else
+        {
+            msg_Dbg( p_this, "could not raise process priority" );
+        }
+    }
+
+    if( config_GetInt( p_this, "one-instance" )
+        || ( config_GetInt( p_this, "one-instance-when-started-from-file" )
+             && config_GetInt( p_this, "started-from-file" ) ) )
     {
-        if( !SetPriorityClass( GetCurrentProcess(),
-                              HIGH_PRIORITY_CLASS ) )
-           msg_Dbg( p_this, "can't raise process priority" );
-       else
-           msg_Dbg( p_this, "raised process priority" );
+        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( 0, TRUE, _T("VLC ipc ") _T(VERSION) ) ) )
+        {
+            /* 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( 0, _T("VLC ipc ") _T(VERSION) ) ) )
+            {
+                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 );
+        }
     }
-    else
-       msg_Dbg( p_this, "raised process priority" );
+
 #endif
 }
 
+static void IPCHelperThread( vlc_object_t *p_this )
+{
+    HWND ipcwindow;
+    MSG message;
+
+    ipcwindow =
+        CreateWindow( _T("STATIC"),                  /* name of window class */
+                  _T("VLC ipc ") _T(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++;
+                }
+                if( i_opt || config_GetInt( p_this, "playlist-enqueue" ) )
+                {
+                  playlist_AddExt( p_playlist, ppsz_argv[i_opt],
+                    NULL, PLAYLIST_APPEND ,
+                    PLAYLIST_END, -1,
+                    (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
+                    i_options, VLC_TRUE, VLC_FALSE );
+                } else {
+                  playlist_AddExt( p_playlist, ppsz_argv[i_opt],
+                    NULL, PLAYLIST_APPEND | PLAYLIST_GO,
+                    PLAYLIST_END, -1,
+                    (char const **)( i_options ? &ppsz_argv[i_opt+1] : NULL ),
+                    i_options, VLC_TRUE, VLC_FALSE );
+                }
+
+                i_opt += i_options;
+            }
+
+            free( ppsz_argv );
+        }
+
+        vlc_object_release( p_playlist );
+    }
+
+    return DefWindowProc( hwnd, uMsg, wParam, lParam );
+}
+
 /*****************************************************************************
  * system_End: terminate winsock.
  *****************************************************************************/
-void system_End( vlc_t *p_this )
+void system_End( libvlc_int_t *p_this )
 {
-#if !defined( UNDER_CE )
+    if( p_this && vlc_global() )
+    {
+        free( vlc_global()->psz_vlcpath );
+        vlc_global()->psz_vlcpath = NULL;
+    }
+
     WSACleanup();
-#endif
 }