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 *******************************************************************************/
14 #include <netinet/in.h>
15 #include <sys/soundcard.h>
18 #include <X11/extensions/XShm.h>
26 #include "input_vlan.h"
27 #include "decoder_fifo.h"
29 #include "audio_output.h"
30 #include "audio_decoder.h"
33 #include "video_output.h"
34 #include "video_decoder.h"
37 #include "interface.h"
41 /* ?? remove useless headers */
46 static int StartInterface ( intf_thread_t *p_intf );
47 static void EndInterface ( intf_thread_t *p_intf );
49 /*******************************************************************************
51 *******************************************************************************
53 * - Create an X11 console
54 * - wait for a command and try to execute it
55 * - interpret the order returned after the command execution
56 * - print the messages of the message queue (intf_FlushMsg)
57 * return value: 0 if successful, < 0 otherwise
58 *******************************************************************************/
59 int intf_Run( intf_thread_t *p_intf )
61 /* When it is started, interface won't die immediatly */
63 if( StartInterface( p_intf ) ) /* error */
71 /* Flush waiting messages */
74 /* Manage specific interfaces */
75 intf_ManageXConsole( &p_intf->xconsole ); /* X11 console */
77 /* Sleep to avoid using all CPU - since some interfaces needs to access
78 * keyboard events, a 100ms delay is a good compromise */
79 msleep( INTF_IDLE_SLEEP );
82 /* End of interface thread - the main() function will close all remaining
84 EndInterface( p_intf );
88 /* following functions are local */
90 /*******************************************************************************
91 * StartInterface: prepare interface before main loop
92 *******************************************************************************
93 * This function opens output devices and create specific interfaces. It send
94 * it's own error messages.
95 *******************************************************************************/
96 static int StartInterface( intf_thread_t *p_intf )
98 int i_thread; /* thread index */
100 /* Empty all threads array */
101 for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
103 p_intf->pp_vout[i_thread] = NULL;
105 for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
107 p_intf->pp_input[i_thread] = NULL;
110 /* Start X11 Console*/
111 if( intf_OpenXConsole( &p_intf->xconsole ) )
113 intf_ErrMsg("intf error: can't open X11 console\n");
120 /*******************************************************************************
121 * EndInterface: clean interface after main loop
122 *******************************************************************************
123 * This function destroys specific interfaces and close output devices.
124 *******************************************************************************/
125 static void EndInterface( intf_thread_t *p_intf )
127 int i_thread; /* thread index */
128 boolean_t b_thread; /* flag for remaing threads */
129 int pi_vout_status[VOUT_MAX_THREADS]; /* vout threads status */
133 /* Close X11 console */
134 intf_CloseXConsole( &p_intf->xconsole );
136 /* Destroy all remaining input threads */
137 for( i_thread = 0; i_thread < INPUT_MAX_THREADS; i_thread++ )
139 if( p_intf->pp_input[i_thread] != NULL )
141 input_DestroyThread( p_intf->pp_input[i_thread] );
145 /* Destroy all remaining video output threads - all destruction orders are send,
146 * then all THREAD_OVER status are received */
147 for( i_thread = 0, b_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
149 if( p_intf->pp_vout[i_thread] != NULL )
151 vout_DestroyThread( p_intf->pp_vout[i_thread], &pi_vout_status[i_thread] );
157 msleep( INTF_IDLE_SLEEP );
159 for( i_thread = 0; i_thread < VOUT_MAX_THREADS; i_thread++ )
161 if( (p_intf->pp_vout[i_thread] != NULL)
162 && (pi_vout_status[i_thread] != THREAD_OVER) )