]> git.sesse.net Git - vlc/blobdiff - src/misc/win32_specific.c
* src/misc/mtime.c: fixed an overflow in mdate() on win32.
[vlc] / src / misc / win32_specific.c
index 9c4396e6289b6792a7c2bc203ce3e7169603ee42..7afacde49a63832d41bdc779d92e01acdb02f3ac 100644 (file)
@@ -1,16 +1,17 @@
 /*****************************************************************************
- * win32_specific.c: Win32 specific features 
+ * win32_specific.c: Win32 specific features
  *****************************************************************************
  * Copyright (C) 2001 VideoLAN
- * $Id: win32_specific.c,v 1.5 2001/12/30 07:09:56 sam Exp $
+ * $Id: win32_specific.c,v 1.28 2003/12/09 19:18:48 gbazin Exp $
  *
  * Authors: Samuel Hocevar <sam@zoy.org>
+ *          Gildas Bazin <gbazin@netcourrier.com>
  *
  * 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
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- * 
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *****************************************************************************/
 #include <string.h>                                              /* strdup() */
 #include <stdlib.h>                                                /* free() */
-#include <fcntl.h>
 
-#include <winsock2.h>
+#include <vlc/vlc.h>
+#include "vlc_playlist.h"
+
+#ifdef WIN32                       /* optind, getopt(), included in unistd.h */
+#   include "../extras/getopt.h"
+#endif
 
-#include <videolan/vlc.h>
+#if !defined( UNDER_CE )
+#   include <io.h>
+#   include <fcntl.h>
+#   include <winsock2.h>
+#endif
 
 /*****************************************************************************
- * system_Init: initialize winsock.
+ * system_Init: initialize winsock and misc other things.
  *****************************************************************************/
-void system_Init( int *pi_argc, char *ppsz_argv[], char *ppsz_env[] )
+void system_Init( vlc_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;
+
+        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
+    {
+        p_this->p_libvlc->psz_vlcpath = strdup( "" );
+    }
+
+    /* Set the default file-translation mode */
+    _fmode = _O_BINARY;
+    _setmode( _fileno( stdin ), _O_BINARY ); /* Needed for pipes */
+
+    /* Call mdate() once to make sure it is initialized properly */
+    mdate();
 
     /* WinSock Library Init. */
-    i_err = WSAStartup( MAKEWORD( 1, 1 ), &Data );
+    if( !WSAStartup( MAKEWORD( 2, 0 ), &Data ) )
+    {
+        /* Confirm that the WinSock DLL supports 2.0.*/
+        if( LOBYTE( Data.wVersion ) != 2 || HIBYTE( Data.wVersion ) != 0 )
+        {
+            /* 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" );
+
+    return; 
+
+#endif
+}
+
+/*****************************************************************************
+ * system_Configure: check for system specific configuration options.
+ *****************************************************************************/
+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" );
+    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( 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" ) )
+    {
+        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)" );
+
+            }
 
-    if( i_err )
+            /* 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 ) )
     {
-        fprintf( stderr, "error: can't initiate WinSocks, error %i", i_err );
+        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);
+            }
 
-    _fmode = _O_BINARY;  /* sets the default file-translation mode */
+            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.
  *****************************************************************************/
-void system_End( void )
+void system_End( vlc_t *p_this )
 {
+#if !defined( UNDER_CE )
     WSACleanup();
+#endif
 }
-