1 /*******************************************************************************
2 * interface.c: interface access for other threads
4 *******************************************************************************
5 * This library provides basic functions for threads to interact with user
6 * interface, such as command line.
7 *******************************************************************************/
9 /*******************************************************************************
11 *******************************************************************************/
15 #include <netinet/in.h>
16 #include <sys/soundcard.h>
19 #include <X11/extensions/XShm.h>
21 #include <sys/types.h>
34 #include "input_netlist.h"
35 #include "input_vlan.h"
36 #include "decoder_fifo.h"
38 #include "audio_output.h"
39 #include "audio_decoder.h"
42 #include "video_output.h"
43 #include "video_decoder.h"
46 #include "interface.h"
50 /* ?? remove useless headers */
55 static int StartInterface ( intf_thread_t *p_intf );
56 static void EndInterface ( intf_thread_t *p_intf );
58 /*******************************************************************************
60 *******************************************************************************
62 * - Create an X11 console
63 * - wait for a command and try to execute it
64 * - interpret the order returned after the command execution
65 * - print the messages of the message queue (intf_FlushMsg)
66 * return value: 0 if successful, < 0 otherwise
67 *******************************************************************************/
68 int intf_Run( intf_thread_t *p_intf )
70 /* When it is started, interface won't die immediatly */
72 if( StartInterface( p_intf ) ) /* error */
80 /* Flush waiting messages */
83 /* Manage specific interfaces */
84 intf_ManageXConsole( &p_intf->xconsole ); /* X11 console */
86 /* Sleep to avoid using all CPU - since some interfaces needs to access
87 * keyboard events, a 100ms delay is a good compromise */
88 msleep( INTF_IDLE_SLEEP );
91 /* End of interface thread - the main() function will close all remaining
93 EndInterface( p_intf );
97 /* following functions are local */
99 /*******************************************************************************
100 * StartInterface: prepare interface before main loop
101 *******************************************************************************
102 * This function opens output devices and create specific interfaces. It send
103 * it's own error messages.
104 *******************************************************************************/
105 static int StartInterface( intf_thread_t *p_intf )
107 int i_thread; /* thread index */
112 /* Empty all threads array */
113 for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
115 p_intf->pp_vout[i_thread] = NULL;
117 for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
119 p_intf->pp_input[i_thread] = NULL;
122 /* Start X11 Console*/
123 if( intf_OpenXConsole( &p_intf->xconsole ) )
125 intf_ErrMsg("intf error: can't open X11 console\n");
130 /* Execute the initialization script (typically spawn an input thread) */
131 if ( (fd = open( INIT_SCRIPT, O_RDONLY )) != -1 )
133 /* Startup script does exist */
135 intf_ExecScript( INIT_SCRIPT );
142 /*******************************************************************************
143 * EndInterface: clean interface after main loop
144 *******************************************************************************
145 * This function destroys specific interfaces and close output devices.
146 *******************************************************************************/
147 static void EndInterface( intf_thread_t *p_intf )
149 int i_thread; /* thread index */
150 boolean_t b_thread; /* flag for remaing threads */
151 int pi_vout_status[VOUT_MAX_THREADS]; /* vout threads status */
155 /* Close X11 console */
156 intf_CloseXConsole( &p_intf->xconsole );
158 /* Destroy all remaining input threads */
159 for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
161 if( p_intf->pp_input[i_thread] != NULL )
163 input_DestroyThread( p_intf->pp_input[i_thread] );
167 /* Destroy all remaining video output threads - all destruction orders are send,
168 * then all THREAD_OVER status are received */
169 for( i_thread = 0, b_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
171 if( p_intf->pp_vout[i_thread] != NULL )
173 vout_DestroyThread( p_intf->pp_vout[i_thread], &pi_vout_status[i_thread] );
179 msleep( INTF_IDLE_SLEEP );
181 for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
183 if( (p_intf->pp_vout[i_thread] != NULL)
184 && (pi_vout_status[i_thread] != THREAD_OVER) )