-/*******************************************************************************
+/*****************************************************************************
* interface.c: interface access for other threads
- * (c)1998 VideoLAN
- *******************************************************************************
* This library provides basic functions for threads to interact with user
* interface, such as command line.
- *******************************************************************************/
+ *****************************************************************************
+ * Copyright (C) 1998-2007 the VideoLAN team
+ * $Id$
+ *
+ * Authors: Vincent Seguin <seguin@via.ecp.fr>
+ *
+ * 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
+ * GNU General Public License for more details.
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
-/*******************************************************************************
+/**
+ * \file
+ * This file contains functions related to interface management
+ */
+
+
+/*****************************************************************************
* Preamble
- *******************************************************************************/
-#include <pthread.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <netinet/in.h>
-#include <sys/soundcard.h>
-#include <sys/uio.h>
-#include <X11/Xlib.h>
-#include <X11/extensions/XShm.h>
-
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-
-#include "config.h"
-#include "common.h"
-#include "mtime.h"
-#include "thread.h"
-#include "debug.h"
-
-#include "intf_msg.h"
-
-#include "input.h"
-#include "input_netlist.h"
-#include "input_vlan.h"
-#include "decoder_fifo.h"
-
-#include "audio_output.h"
-#include "audio_decoder.h"
-
-#include "video.h"
-#include "video_output.h"
-#include "video_decoder.h"
-
-#include "xconsole.h"
-#include "interface.h"
-#include "intf_cmd.h"
-
-#include "pgm_data.h"
-/* ?? remove useless headers */
-
-/*
+ *****************************************************************************/
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+
+#include <vlc_aout.h>
+#include <vlc_vout.h>
+
+#include "vlc_interface.h"
+#include "modules/modules.h" // Gruik!
+#include "libvlc.h"
+
+/*****************************************************************************
* Local prototypes
+ *****************************************************************************/
+static void RunInterface( intf_thread_t *p_intf );
+#ifdef __APPLE__
+static void MonitorLibVLCDeath( intf_thread_t *p_intf );
+#endif
+static int AddIntfCallback( vlc_object_t *, char const *,
+ vlc_value_t , vlc_value_t , void * );
+
+/**
+ * \brief Destroy the interface after the main loop endeed.
+ *
+ * \param p_intf the interface thread
+ * \return nothing
*/
-static int StartInterface ( intf_thread_t *p_intf );
-static void EndInterface ( intf_thread_t *p_intf );
-
-/*******************************************************************************
- * intf_Run
- *******************************************************************************
- * what it does:
- * - Create an X11 console
- * - wait for a command and try to execute it
- * - interpret the order returned after the command execution
- * - print the messages of the message queue (intf_FlushMsg)
- * return value: 0 if successful, < 0 otherwise
- *******************************************************************************/
-int intf_Run( intf_thread_t *p_intf )
+static void intf_Destroy( vlc_object_t *obj )
{
- /* When it is started, interface won't die immediatly */
- p_intf->b_die = 0;
- if( StartInterface( p_intf ) ) /* error */
- {
- return( 1 );
- }
-
- /* Main loop */
- while(!p_intf->b_die)
- {
- /* Flush waiting messages */
- intf_FlushMsg();
+ intf_thread_t *p_intf = (intf_thread_t *)obj;
- /* Manage specific interfaces */
- intf_ManageXConsole( &p_intf->xconsole ); /* X11 console */
+ /* Unlock module if present (a switch may have failed) */
+ if( p_intf->p_module )
+ module_Unneed( p_intf, p_intf->p_module );
- /* Sleep to avoid using all CPU - since some interfaces needs to access
- * keyboard events, a 100ms delay is a good compromise */
- msleep( INTF_IDLE_SLEEP );
- }
-
- /* End of interface thread - the main() function will close all remaining
- * output threads */
- EndInterface( p_intf );
- return ( 0 );
+ free( p_intf->psz_intf );
+ vlc_mutex_destroy( &p_intf->change_lock );
}
-/* following functions are local */
-
-/*******************************************************************************
- * StartInterface: prepare interface before main loop
- *******************************************************************************
- * This function opens output devices and create specific interfaces. It send
- * it's own error messages.
- *******************************************************************************/
-static int StartInterface( intf_thread_t *p_intf )
+/*****************************************************************************
+ * intf_Create: prepare interface before main loop
+ *****************************************************************************
+ * This function opens output devices and creates specific interfaces. It sends
+ * its own error messages.
+ *****************************************************************************/
+/**
+ * Create the interface, and prepare it for main loop.
+ *
+ * \param p_this the calling vlc_object_t
+ * \param psz_module a preferred interface module
+ * \return a pointer to the created interface thread, NULL on error
+ */
+intf_thread_t* __intf_Create( vlc_object_t *p_this, const char *psz_module )
{
- int i_thread; /* thread index */
-#ifdef INIT_SCRIPT
- int fd;
+ intf_thread_t * p_intf;
+
+ /* Allocate structure */
+ p_intf = vlc_object_create( p_this, VLC_OBJECT_INTF );
+ if( !p_intf )
+ return NULL;
+ p_intf->b_interaction = false;
+#ifdef __APPLE__
+ p_intf->b_should_run_on_first_thread = false;
#endif
- /* Empty all threads array */
- for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
- {
- p_intf->pp_vout[i_thread] = NULL;
- }
- for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
- {
- p_intf->pp_input[i_thread] = NULL;
- }
+ /* Choose the best module */
+ p_intf->psz_intf = strdup( psz_module );
+ p_intf->p_module = module_Need( p_intf, "interface", psz_module, false );
- /* Start X11 Console*/
- if( intf_OpenXConsole( &p_intf->xconsole ) )
+ if( p_intf->p_module == NULL )
{
- intf_ErrMsg("intf error: can't open X11 console\n");
- return( 1 );
+ msg_Err( p_intf, "no suitable interface module" );
+ free( p_intf->psz_intf );
+ vlc_object_release( p_intf );
+ return NULL;
}
-#ifdef INIT_SCRIPT
- /* Execute the initialization script (typically spawn an input thread) */
- if ( (fd = open( INIT_SCRIPT, O_RDONLY )) != -1 )
+ /* Initialize structure */
+ p_intf->b_menu = false;
+ p_intf->b_menu_change = false;
+
+ /* Initialize mutexes */
+ vlc_mutex_init( &p_intf->change_lock );
+
+ /* Attach interface to its parent object */
+ vlc_object_attach( p_intf, p_this );
+ vlc_object_set_destructor( p_intf, intf_Destroy );
+
+ return p_intf;
+}
+
+/*****************************************************************************
+ * intf_RunThread: launch the interface thread
+ *****************************************************************************
+ * This function either creates a new thread and runs the interface in it.
+ *****************************************************************************/
+/**
+ * Starts and runs the interface thread.
+ *
+ * \param p_intf the interface thread
+ * \return VLC_SUCCESS on success, an error number else
+ */
+int intf_RunThread( intf_thread_t *p_intf )
+{
+#ifdef __APPLE__
+ /* Hack to get Mac OS X Cocoa runtime running
+ * (it needs access to the main thread) */
+ if( p_intf->b_should_run_on_first_thread )
{
- /* Startup script does exist */
- close( fd );
- intf_ExecScript( INIT_SCRIPT );
+ if( vlc_thread_create( p_intf, "interface", MonitorLibVLCDeath,
+ VLC_THREAD_PRIORITY_LOW, false ) )
+ {
+ msg_Err( p_intf, "cannot spawn libvlc death monitoring thread" );
+ return VLC_EGENERIC;
+ }
+ RunInterface( p_intf );
+
+ /* Make sure our MonitorLibVLCDeath thread exit */
+ vlc_object_kill( p_intf );
+ /* It is monitoring libvlc, not the p_intf */
+ vlc_object_signal( p_intf->p_libvlc );
+ vlc_thread_join( p_intf );
+
+ vlc_object_detach( p_intf );
+ vlc_object_release( p_intf );
+ return VLC_SUCCESS;
}
#endif
+ /* Run the interface in a separate thread */
+ if( vlc_thread_create( p_intf, "interface", RunInterface,
+ VLC_THREAD_PRIORITY_LOW, false ) )
+ {
+ msg_Err( p_intf, "cannot spawn interface thread" );
+ return VLC_EGENERIC;
+ }
- return( 0 );
+ return VLC_SUCCESS;
}
-/*******************************************************************************
- * EndInterface: clean interface after main loop
- *******************************************************************************
- * This function destroys specific interfaces and close output devices.
- *******************************************************************************/
-static void EndInterface( intf_thread_t *p_intf )
+/**
+ * Stops the interface thread
+ *
+ * This function asks the interface thread to stop
+ * \param p_intf the interface thread
+ * \return nothing
+ */
+void intf_StopThread( intf_thread_t *p_intf )
{
- int i_thread; /* thread index */
- boolean_t b_thread; /* flag for remaing threads */
- int pi_vout_status[VOUT_MAX_THREADS]; /* vout threads status */
-
-
-
- /* Close X11 console */
- intf_CloseXConsole( &p_intf->xconsole );
-
- /* Destroy all remaining input threads */
- for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
+ /* Tell the interface to die */
+ vlc_object_kill( p_intf );
+ vlc_thread_join( p_intf );
+}
+
+/* Following functions are local */
+
+/*****************************************************************************
+ * RunInterface: setups necessary data and give control to the interface
+ *****************************************************************************/
+static void RunInterface( intf_thread_t *p_intf )
+{
+ vlc_value_t val, text;
+ char *psz_intf;
+
+ /* Variable used for interface spawning */
+ var_Create( p_intf, "intf-add", VLC_VAR_STRING |
+ VLC_VAR_HASCHOICE | VLC_VAR_ISCOMMAND );
+ text.psz_string = _("Add Interface");
+ var_Change( p_intf, "intf-add", VLC_VAR_SETTEXT, &text, NULL );
+
+ val.psz_string = (char *)"rc";
+ text.psz_string = (char *)_("Console");
+ var_Change( p_intf, "intf-add", VLC_VAR_ADDCHOICE, &val, &text );
+ val.psz_string = (char *)"telnet";
+ text.psz_string = (char *)_("Telnet Interface");
+ var_Change( p_intf, "intf-add", VLC_VAR_ADDCHOICE, &val, &text );
+ val.psz_string = (char *)"http";
+ text.psz_string = (char *)_("Web Interface");
+ var_Change( p_intf, "intf-add", VLC_VAR_ADDCHOICE, &val, &text );
+ val.psz_string = (char *)"logger";
+ text.psz_string = (char *)_("Debug logging");
+ var_Change( p_intf, "intf-add", VLC_VAR_ADDCHOICE, &val, &text );
+ val.psz_string = (char *)"gestures";
+ text.psz_string = (char *)_("Mouse Gestures");
+ var_Change( p_intf, "intf-add", VLC_VAR_ADDCHOICE, &val, &text );
+
+ var_AddCallback( p_intf, "intf-add", AddIntfCallback, NULL );
+
+ do
{
- if( p_intf->pp_input[i_thread] != NULL )
+ /* Give control to the interface */
+ if( p_intf->pf_run )
+ p_intf->pf_run( p_intf );
+ else
{
- input_DestroyThread( p_intf->pp_input[i_thread] );
- }
- }
+ vlc_object_lock( p_intf );
+ while( vlc_object_alive( p_intf ) )
+ vlc_object_wait( p_intf );
+ vlc_object_unlock( p_intf );
+ }
- /* Destroy all remaining video output threads - all destruction orders are send,
- * then all THREAD_OVER status are received */
- for( i_thread = 0, b_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
- {
- if( p_intf->pp_vout[i_thread] != NULL )
+ if( !p_intf->psz_switch_intf )
{
- vout_DestroyThread( p_intf->pp_vout[i_thread], &pi_vout_status[i_thread] );
- b_thread = 1;
+ break;
}
+
+ /* Make sure the old interface is completely uninitialized */
+ module_Unneed( p_intf, p_intf->p_module );
+
+ /* Provide ability to switch the main interface on the fly */
+ psz_intf = p_intf->psz_switch_intf;
+ p_intf->psz_switch_intf = NULL;
+
+ vlc_object_lock( p_intf );
+ p_intf->b_die = false; /* FIXME */
+ p_intf->b_dead = false;
+
+ vlc_object_unlock( p_intf );
+
+ p_intf->psz_intf = psz_intf;
+ p_intf->p_module = module_Need( p_intf, "interface", psz_intf, 0 );
}
- while( b_thread )
+ while( p_intf->p_module );
+}
+
+#ifdef __APPLE__
+/*****************************************************************************
+ * MonitorLibVLCDeath: Used when b_should_run_on_first_thread is set.
+ *****************************************************************************/
+static void MonitorLibVLCDeath( intf_thread_t *p_intf )
+{
+ libvlc_int_t * p_libvlc = p_intf->p_libvlc;
+ vlc_object_lock( p_libvlc );
+ while(vlc_object_alive( p_libvlc ) )
{
- msleep( INTF_IDLE_SLEEP );
- b_thread = 0;
- for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
+ if(p_intf->b_die)
{
- if( (p_intf->pp_vout[i_thread] != NULL)
- && (pi_vout_status[i_thread] != THREAD_OVER) )
- {
- b_thread = 1;
- }
+ vlc_object_unlock( p_libvlc );
+ return;
}
+ vlc_object_wait( p_libvlc );
}
-
+ vlc_object_unlock( p_libvlc );
+
+ /* Someone killed libvlc */
+ /* Make sure we kill all interface objects, especially
+ * those that are blocking libvlc (running on main thread) */
+ vlc_list_t * p_list = vlc_list_find( p_libvlc, VLC_OBJECT_INTF, FIND_CHILD );
+ for( int i = 0; i < p_list->i_count; i++ )
+ {
+ vlc_object_t * p_intf = p_list->p_values[i].p_object;
+ vlc_object_kill( p_intf );
+ }
+ vlc_list_release( p_list );
}
+#endif
+
+static int AddIntfCallback( vlc_object_t *p_this, char const *psz_cmd,
+ vlc_value_t oldval, vlc_value_t newval, void *p_data )
+{
+ intf_thread_t *p_intf;
+ char *psz_intf = malloc( strlen(newval.psz_string) + sizeof(",none") );
+
+ (void)psz_cmd; (void)oldval; (void)p_data;
+
+ /* Try to create the interface */
+ sprintf( psz_intf, "%s,none", newval.psz_string );
+ p_intf = intf_Create( p_this->p_libvlc, psz_intf );
+ free( psz_intf );
+ if( p_intf == NULL )
+ {
+ msg_Err( p_this, "interface \"%s\" initialization failed",
+ newval.psz_string );
+ return VLC_EGENERIC;
+ }
+
+ /* Try to run the interface */
+ if( intf_RunThread( p_intf ) != VLC_SUCCESS )
+ {
+ vlc_object_detach( p_intf );
+ vlc_object_release( p_intf );
+ return VLC_EGENERIC;
+ }
+
+ return VLC_SUCCESS;
+}
+
projects / vlc / blobdiff