1 /*****************************************************************************
2 * specific.c: OS/2 specific features
3 *****************************************************************************
4 * Copyright (C) 2010 KO Myung-Hun
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU Lesser General Public License as published by
8 * the Free Software Foundation; either version 2.1 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
19 *****************************************************************************/
25 #include <vlc_common.h>
26 #include "../libvlc.h"
27 #include <vlc_playlist.h>
28 #include <vlc_interface.h>
34 #define VLC_IPC_PIPE "\\PIPE\\VLC\\IPC\\"VERSION
36 #define IPC_CMD_GO 0x00
37 #define IPC_CMD_ENQUEUE 0x01
38 #define IPC_CMD_QUIT 0xFF
40 extern int _fmode_bin;
42 static HPIPE hpipeIPC = NULLHANDLE;
43 static int tidIPCFirst = -1;
44 static int tidIPCHelper = -1;
46 static void IPCHelperThread( void *arg )
48 libvlc_int_t *libvlc = arg;
57 /* Add files to the playlist */
58 playlist_t *p_playlist;
62 DosConnectNPipe( hpipeIPC );
65 DosRead( hpipeIPC, &ulCmd, sizeof( ulCmd ), &cbActual );
66 if( ulCmd == IPC_CMD_QUIT )
69 /* Read a count of arguments */
70 DosRead( hpipeIPC, &i_argc, sizeof( i_argc ), &cbActual );
72 ppsz_argv = malloc( i_argc * sizeof( *ppsz_argv ));
74 for( int i_opt = 0; i_opt < i_argc; i_opt++ )
76 /* Read a length of argv */
77 DosRead( hpipeIPC, &i_len, sizeof( i_len ), &cbActual );
79 ppsz_argv[ i_opt ] = malloc( i_len );
82 DosRead( hpipeIPC, ppsz_argv[ i_opt ], i_len, &cbActual );
85 p_playlist = libvlc_priv(libvlc)->playlist;
87 for( int i_opt = 0; i_opt < i_argc;)
91 /* Count the input options */
92 while( i_opt + i_options + 1 < i_argc &&
93 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
99 playlist_AddExt( p_playlist, ppsz_argv[ i_opt ], NULL,
101 (( i_opt || ulCmd == IPC_CMD_ENQUEUE ) ?
103 PLAYLIST_END, -1, i_options,
105 ( i_options ? &ppsz_argv[ i_opt + 1 ] :
107 VLC_INPUT_OPTION_TRUSTED,
111 for( ; i_options >= 0; i_options-- )
112 free( ppsz_argv[ i_opt++ ]);
116 } while( !DosDisConnectNPipe( hpipeIPC ) && ulCmd != IPC_CMD_QUIT );
118 DosClose( hpipeIPC );
119 hpipeIPC = NULLHANDLE;
125 void system_Init( void )
127 /* Set the default file-translation mode */
129 setmode( fileno( stdin ), O_BINARY ); /* Needed for pipes */
132 void system_Configure( libvlc_int_t *p_this, int i_argc, const char *const ppsz_argv[] )
134 if( var_InheritBool( p_this, "high-priority" ) )
136 if( !DosSetPriority( PRTYS_PROCESS, PRTYC_REGULAR, PRTYD_MAXIMUM, 0 ) )
138 msg_Dbg( p_this, "raised process priority" );
142 msg_Dbg( p_this, "could not raise process priority" );
146 if( var_InheritBool( p_this, "one-instance" )
147 || ( var_InheritBool( p_this, "one-instance-when-started-from-file" )
148 && var_InheritBool( p_this, "started-from-file" ) ) )
154 msg_Info( p_this, "one instance mode ENABLED");
156 /* Use a named pipe to check if another instance is already running */
159 rc = DosOpen( VLC_IPC_PIPE, &hpipe, &ulAction, 0, 0,
160 OPEN_ACTION_OPEN_IF_EXISTS,
161 OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYREADWRITE |
162 OPEN_FLAGS_FAIL_ON_ERROR,
165 if( rc == ERROR_PIPE_BUSY )
166 DosWaitNPipe( VLC_IPC_PIPE, -1 );
173 rc = DosCreateNPipe( VLC_IPC_PIPE, &hpipeIPC,
175 NP_WAIT | NP_TYPE_MESSAGE |
176 NP_READMODE_MESSAGE | 0x01,
180 /* Failed to create a named pipe. Just ignore the option and
181 * go on as normal. */
182 msg_Err( p_this, "one instance mode DISABLED "
183 "(a named pipe couldn't be created)" );
187 /* We are the 1st instance. */
189 /* Save the tid of the first instance */
190 tidIPCFirst = _gettid();
192 /* Run the helper thread */
193 tidIPCHelper = _beginthread( IPCHelperThread, NULL, 1024 * 1024,
195 if( tidIPCHelper == -1 )
197 msg_Err( p_this, "one instance mode DISABLED "
198 "(IPC helper thread couldn't be created)");
205 /* Another instance is running */
206 ULONG ulCmd = var_InheritBool( p_this, "playlist-enqueue") ?
207 IPC_CMD_ENQUEUE : IPC_CMD_GO;
210 /* Write a command */
211 DosWrite( hpipe, &ulCmd, sizeof( ulCmd ), &cbActual );
213 /* We assume that the remaining parameters are filenames
214 * and their input options */
216 /* Write a count of arguments */
217 DosWrite( hpipe, &i_argc, sizeof( i_argc ), &cbActual );
219 for( int i_opt = 0; i_opt < i_argc; i_opt++ )
221 /* We need to resolve relative paths in this instance */
223 if( strstr( ppsz_argv[ i_opt ], "://" ))
224 mrl = strdup( ppsz_argv[ i_opt ] );
226 mrl = vlc_path2uri( ppsz_argv[ i_opt ], NULL );
229 mrl = ( char * )ppsz_argv[ i_opt ];
231 size_t i_len = strlen( mrl ) + 1;
233 /* Write a length of an argument */
234 DosWrite( hpipe, &i_len, sizeof( i_len ), &cbActual );
236 /* Write an argument */
237 DosWrite( hpipe, mrl, i_len, &cbActual );
239 if( mrl != ppsz_argv[ i_opt ])
243 /* Close a named pipe of a client side */
254 * Cleans up after system_Init() and system_Configure().
256 void system_End(void)
258 if( tidIPCFirst == _gettid())
267 rc = DosOpen( VLC_IPC_PIPE, &hpipe, &ulAction, 0, 0,
268 OPEN_ACTION_OPEN_IF_EXISTS,
269 OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYREADWRITE |
270 OPEN_FLAGS_FAIL_ON_ERROR,
273 if( rc == ERROR_PIPE_BUSY )
274 DosWaitNPipe( VLC_IPC_PIPE, -1 );
279 /* Ask for IPCHelper to quit */
280 ULONG ulCmd = IPC_CMD_QUIT;
281 DosWrite( hpipe, &ulCmd, sizeof( ulCmd ), &cbActual );
285 TID tid = tidIPCHelper;
286 DosWaitThread( &tid, DCWW_WAIT );