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_input.h>
29 #include <vlc_interface.h>
35 #define VLC_IPC_PIPE "\\PIPE\\VLC\\IPC\\"VERSION
37 #define IPC_CMD_GO 0x00
38 #define IPC_CMD_ENQUEUE 0x01
39 #define IPC_CMD_QUIT 0xFF
41 extern int _fmode_bin;
43 static HPIPE hpipeIPC = NULLHANDLE;
44 static int tidIPCFirst = -1;
45 static int tidIPCHelper = -1;
47 static void IPCHelperThread( void *arg )
49 libvlc_int_t *libvlc = arg;
58 /* Add files to the playlist */
59 playlist_t *p_playlist;
63 DosConnectNPipe( hpipeIPC );
66 DosRead( hpipeIPC, &ulCmd, sizeof( ulCmd ), &cbActual );
67 if( ulCmd == IPC_CMD_QUIT )
70 /* Read a count of arguments */
71 DosRead( hpipeIPC, &i_argc, sizeof( i_argc ), &cbActual );
73 ppsz_argv = malloc( i_argc * sizeof( *ppsz_argv ));
75 for( int i_opt = 0; i_opt < i_argc; i_opt++ )
77 /* Read a length of argv */
78 DosRead( hpipeIPC, &i_len, sizeof( i_len ), &cbActual );
80 ppsz_argv[ i_opt ] = malloc( i_len );
83 DosRead( hpipeIPC, ppsz_argv[ i_opt ], i_len, &cbActual );
86 p_playlist = libvlc_priv(libvlc)->playlist;
88 for( int i_opt = 0; i_opt < i_argc;)
92 /* Count the input options */
93 while( i_opt + i_options + 1 < i_argc &&
94 *ppsz_argv[ i_opt + i_options + 1 ] == ':' )
100 playlist_AddExt( p_playlist, ppsz_argv[ i_opt ], NULL,
102 (( i_opt || ulCmd == IPC_CMD_ENQUEUE ) ?
104 PLAYLIST_END, -1, i_options,
106 ( i_options ? &ppsz_argv[ i_opt + 1 ] :
108 VLC_INPUT_OPTION_TRUSTED,
112 for( ; i_options >= 0; i_options-- )
113 free( ppsz_argv[ i_opt++ ]);
117 } while( !DosDisConnectNPipe( hpipeIPC ) && ulCmd != IPC_CMD_QUIT );
119 DosClose( hpipeIPC );
120 hpipeIPC = NULLHANDLE;
126 void system_Init( void )
128 /* Set the default file-translation mode */
130 setmode( fileno( stdin ), O_BINARY ); /* Needed for pipes */
133 void system_Configure( libvlc_int_t *p_this, int i_argc, const char *const ppsz_argv[] )
135 if( var_InheritBool( p_this, "high-priority" ) )
137 if( !DosSetPriority( PRTYS_PROCESS, PRTYC_REGULAR, PRTYD_MAXIMUM, 0 ) )
139 msg_Dbg( p_this, "raised process priority" );
143 msg_Dbg( p_this, "could not raise process priority" );
147 if( var_InheritBool( p_this, "one-instance" )
148 || ( var_InheritBool( p_this, "one-instance-when-started-from-file" )
149 && var_InheritBool( p_this, "started-from-file" ) ) )
155 msg_Info( p_this, "one instance mode ENABLED");
157 /* Use a named pipe to check if another instance is already running */
160 rc = DosOpen( VLC_IPC_PIPE, &hpipe, &ulAction, 0, 0,
161 OPEN_ACTION_OPEN_IF_EXISTS,
162 OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYREADWRITE |
163 OPEN_FLAGS_FAIL_ON_ERROR,
166 if( rc == ERROR_PIPE_BUSY )
167 DosWaitNPipe( VLC_IPC_PIPE, -1 );
174 rc = DosCreateNPipe( VLC_IPC_PIPE, &hpipeIPC,
176 NP_WAIT | NP_TYPE_MESSAGE |
177 NP_READMODE_MESSAGE | 0x01,
181 /* Failed to create a named pipe. Just ignore the option and
182 * go on as normal. */
183 msg_Err( p_this, "one instance mode DISABLED "
184 "(a named pipe couldn't be created)" );
188 /* We are the 1st instance. */
190 /* Save the tid of the first instance */
191 tidIPCFirst = _gettid();
193 /* Run the helper thread */
194 tidIPCHelper = _beginthread( IPCHelperThread, NULL, 1024 * 1024,
196 if( tidIPCHelper == -1 )
198 msg_Err( p_this, "one instance mode DISABLED "
199 "(IPC helper thread couldn't be created)");
206 /* Another instance is running */
207 ULONG ulCmd = var_InheritBool( p_this, "playlist-enqueue") ?
208 IPC_CMD_ENQUEUE : IPC_CMD_GO;
211 /* Write a command */
212 DosWrite( hpipe, &ulCmd, sizeof( ulCmd ), &cbActual );
214 /* We assume that the remaining parameters are filenames
215 * and their input options */
217 /* Write a count of arguments */
218 DosWrite( hpipe, &i_argc, sizeof( i_argc ), &cbActual );
220 for( int i_opt = 0; i_opt < i_argc; i_opt++ )
222 /* We need to resolve relative paths in this instance */
224 if( strstr( ppsz_argv[ i_opt ], "://" ))
225 mrl = strdup( ppsz_argv[ i_opt ] );
227 mrl = vlc_path2uri( ppsz_argv[ i_opt ], NULL );
230 mrl = ( char * )ppsz_argv[ i_opt ];
232 size_t i_len = strlen( mrl ) + 1;
234 /* Write a length of an argument */
235 DosWrite( hpipe, &i_len, sizeof( i_len ), &cbActual );
237 /* Write an argument */
238 DosWrite( hpipe, mrl, i_len, &cbActual );
240 if( mrl != ppsz_argv[ i_opt ])
244 /* Close a named pipe of a client side */
255 * Cleans up after system_Init() and system_Configure().
257 void system_End(void)
259 if( tidIPCFirst == _gettid())
268 rc = DosOpen( VLC_IPC_PIPE, &hpipe, &ulAction, 0, 0,
269 OPEN_ACTION_OPEN_IF_EXISTS,
270 OPEN_ACCESS_READWRITE | OPEN_SHARE_DENYREADWRITE |
271 OPEN_FLAGS_FAIL_ON_ERROR,
274 if( rc == ERROR_PIPE_BUSY )
275 DosWaitNPipe( VLC_IPC_PIPE, -1 );
280 /* Ask for IPCHelper to quit */
281 ULONG ulCmd = IPC_CMD_QUIT;
282 DosWrite( hpipe, &ulCmd, sizeof( ulCmd ), &cbActual );
286 TID tid = tidIPCHelper;
287 DosWaitThread( &tid, DCWW_WAIT );