1 /*****************************************************************************
2 * logger.c : file logging plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2002 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
33 #include <vlc_plugin.h>
34 #include <vlc_interface.h>
35 #include <vlc_playlist.h>
36 #include <vlc_charset.h>
38 #include <errno.h> /* ENOMEM */
41 # define _IONBF 0x0004
49 #define LOG_DIR "Library/Logs/"
52 #define LOG_FILE_TEXT "vlc-log.txt"
53 #define LOG_FILE_HTML "vlc-log.html"
55 #define LOG_STRING( msg, file ) fwrite( msg, strlen( msg ), 1, file );
57 #define TEXT_HEADER "-- logger module started --\n"
58 #define TEXT_FOOTER "-- logger module stopped --\n"
61 "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 4.01//EN\"\n" \
62 " \"http://www.w3.org/TR/html4/strict.dtd\">\n" \
65 " <title>vlc log</title>\n" \
66 " <meta http-equiv=\"Content-Type\" content=\"text/html; charset=UTF-8\">\n" \
68 " <body style=\"background-color: #000000; color: #aaaaaa;\">\n" \
70 " <b>-- logger module started --</b>\n"
72 " <b>-- logger module stopped --</b>\n" \
81 /*****************************************************************************
82 * intf_sys_t: description and status of log interface
83 *****************************************************************************/
90 FILE * p_file; /* The log file */
91 msg_subscription_t *p_sub;
94 /*****************************************************************************
96 *****************************************************************************/
97 static int Open ( vlc_object_t * );
98 static void Close ( vlc_object_t * );
99 static void Run ( intf_thread_t * );
101 static void FlushQueue ( msg_subscription_t *, FILE *, int, int );
102 static void TextPrint ( const msg_item_t *, FILE * );
103 static void HtmlPrint ( const msg_item_t *, FILE * );
105 static void SyslogPrint ( const msg_item_t *);
108 static void DoRRD( intf_thread_t *p_intf );
110 /*****************************************************************************
112 *****************************************************************************/
113 static const char *mode_list[] = { "text", "html"
118 static const char *mode_list_text[] = { N_("Text"), "HTML"
124 #define LOGMODE_TEXT N_("Log format")
126 #define LOGMODE_LONGTEXT N_("Specify the log format. Available choices are " \
127 "\"text\" (default), \"html\", and \"syslog\" (special mode to send to " \
128 "syslog instead of file.")
130 #define LOGMODE_LONGTEXT N_("Specify the log format. Available choices are " \
131 "\"text\" (default) and \"html\".")
135 set_shortname( _( "Logging" ) );
136 set_description( _("File logging") );
138 set_category( CAT_ADVANCED );
139 set_subcategory( SUBCAT_ADVANCED_MISC );
141 add_file( "logfile", NULL, NULL,
142 N_("Log filename"), N_("Specify the log filename."), false );
144 add_string( "logmode", "text", NULL, LOGMODE_TEXT, LOGMODE_LONGTEXT,
146 change_string_list( mode_list, mode_list_text, 0 );
148 add_file( "rrd-file", NULL, NULL, N_("RRD output file") ,
149 N_("Output data for RRDTool in this file." ), true );
151 set_capability( "interface", 0 );
152 set_callbacks( Open, Close );
155 /*****************************************************************************
156 * Open: initialize and create stuff
157 *****************************************************************************/
158 static int Open( vlc_object_t *p_this )
160 intf_thread_t *p_intf = (intf_thread_t *)p_this;
161 char *psz_mode, *psz_file, *psz_rrd_file;
164 msg_Info( p_intf, "using logger..." );
166 /* Allocate instance and initialize some members */
167 p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
168 if( p_intf->p_sys == NULL )
170 msg_Err( p_intf, "out of memory" );
174 psz_mode = var_CreateGetString( p_intf, "logmode" );
177 if( !strcmp( psz_mode, "text" ) )
179 p_intf->p_sys->i_mode = MODE_TEXT;
181 else if( !strcmp( psz_mode, "html" ) )
183 p_intf->p_sys->i_mode = MODE_HTML;
186 else if( !strcmp( psz_mode, "syslog" ) )
188 p_intf->p_sys->i_mode = MODE_SYSLOG;
193 msg_Warn( p_intf, "invalid log mode `%s', using `text'", psz_mode );
194 p_intf->p_sys->i_mode = MODE_TEXT;
201 msg_Warn( p_intf, "no log mode specified, using `text'" );
202 p_intf->p_sys->i_mode = MODE_TEXT;
205 if( p_intf->p_sys->i_mode != MODE_SYSLOG )
207 psz_file = config_GetPsz( p_intf, "logfile" );
211 char *psz_homedir = p_this->p_libvlc->psz_homedir;
213 if( !psz_homedir ) /* XXX: This should never happen */
215 msg_Err( p_this, "unable to find home directory" );
218 psz_file = (char *)malloc( sizeof("/" LOG_DIR "/" LOG_FILE_HTML) +
219 strlen(psz_homedir) );
222 switch( p_intf->p_sys->i_mode )
225 sprintf( psz_file, "%s/" LOG_DIR "/" LOG_FILE_HTML,
230 sprintf( psz_file, "%s/" LOG_DIR "/" LOG_FILE_TEXT,
236 switch( p_intf->p_sys->i_mode )
239 psz_file = strdup( LOG_FILE_HTML );
243 psz_file = strdup( LOG_FILE_TEXT );
247 msg_Warn( p_intf, "no log filename provided, using `%s'",
251 /* Open the log file and remove any buffering for the stream */
252 msg_Dbg( p_intf, "opening logfile `%s'", psz_file );
253 p_intf->p_sys->p_file = utf8_fopen( psz_file, "at" );
254 if( p_intf->p_sys->p_file == NULL )
256 msg_Err( p_intf, "error opening logfile `%s'", psz_file );
257 free( p_intf->p_sys );
261 setvbuf( p_intf->p_sys->p_file, NULL, _IONBF, 0 );
265 switch( p_intf->p_sys->i_mode )
268 LOG_STRING( HTML_HEADER, p_intf->p_sys->p_file );
272 LOG_STRING( TEXT_HEADER, p_intf->p_sys->p_file );
279 p_intf->p_sys->p_file = NULL;
281 openlog( "vlc", LOG_PID|LOG_NDELAY, LOG_DAEMON );
285 p_intf->p_sys->last_update = 0;
286 p_intf->p_sys->p_rrd = NULL;
288 psz_rrd_file = config_GetPsz( p_intf, "rrd-file" );
289 if( psz_rrd_file && *psz_rrd_file )
291 p_intf->p_sys->p_rrd = utf8_fopen( psz_rrd_file, "w" );
294 p_intf->p_sys->p_sub = msg_Subscribe( p_intf , MSG_QUEUE_NORMAL );
295 p_intf->pf_run = Run;
300 /*****************************************************************************
301 * Close: destroy interface stuff
302 *****************************************************************************/
303 static void Close( vlc_object_t *p_this )
305 intf_thread_t *p_intf = (intf_thread_t *)p_this;
307 /* Flush the queue and unsubscribe from the message queue */
308 FlushQueue( p_intf->p_sys->p_sub, p_intf->p_sys->p_file,
309 p_intf->p_sys->i_mode,
310 var_CreateGetInteger( p_intf, "verbose" ) );
311 msg_Unsubscribe( p_intf, p_intf->p_sys->p_sub );
313 switch( p_intf->p_sys->i_mode )
316 LOG_STRING( HTML_FOOTER, p_intf->p_sys->p_file );
325 LOG_STRING( TEXT_FOOTER, p_intf->p_sys->p_file );
329 /* Close the log file */
330 if( p_intf->p_sys->i_mode != MODE_SYSLOG )
331 fclose( p_intf->p_sys->p_file );
333 /* Destroy structure */
334 free( p_intf->p_sys );
337 /*****************************************************************************
339 *****************************************************************************
340 * This part of the interface is in a separate thread so that we can call
341 * exec() from within it without annoying the rest of the program.
342 *****************************************************************************/
343 static void Run( intf_thread_t *p_intf )
345 while( !p_intf->b_die )
347 FlushQueue( p_intf->p_sys->p_sub, p_intf->p_sys->p_file,
348 p_intf->p_sys->i_mode,
349 var_CreateGetInteger( p_intf, "verbose" ) );
350 if( p_intf->p_sys->p_rrd )
353 msleep( INTF_IDLE_SLEEP );
357 /*****************************************************************************
358 * FlushQueue: flush the message queue into the log
359 *****************************************************************************/
360 static void FlushQueue( msg_subscription_t *p_sub, FILE *p_file, int i_mode,
365 vlc_mutex_lock( p_sub->p_lock );
366 i_stop = *p_sub->pi_stop;
367 vlc_mutex_unlock( p_sub->p_lock );
369 if( p_sub->i_start != i_stop )
371 /* Append all messages to log file */
372 for( i_start = p_sub->i_start;
374 i_start = (i_start+1) % VLC_MSG_QSIZE )
376 switch( p_sub->p_msg[i_start].i_type )
379 if( i_verbose < 0 ) continue;
382 if( i_verbose < 0 ) continue;
385 if( i_verbose < 1 ) continue;
388 if( i_verbose < 2 ) continue;
395 HtmlPrint( &p_sub->p_msg[i_start], p_file );
399 SyslogPrint( &p_sub->p_msg[i_start] );
404 TextPrint( &p_sub->p_msg[i_start], p_file );
409 vlc_mutex_lock( p_sub->p_lock );
410 p_sub->i_start = i_start;
411 vlc_mutex_unlock( p_sub->p_lock );
415 static const char *ppsz_type[4] = { ": ", " error: ",
416 " warning: ", " debug: " };
418 static void TextPrint( const msg_item_t *p_msg, FILE *p_file )
420 LOG_STRING( p_msg->psz_module, p_file );
421 LOG_STRING( ppsz_type[p_msg->i_type], p_file );
422 LOG_STRING( p_msg->psz_msg, p_file );
423 LOG_STRING( "\n", p_file );
427 static void SyslogPrint( const msg_item_t *p_msg )
429 static const int i_prio[4] = { LOG_INFO, LOG_ERR, LOG_WARNING, LOG_DEBUG };
430 int i_priority = i_prio[p_msg->i_type];
432 if( p_msg->psz_header )
433 syslog( i_priority, "%s%s %s: %s", p_msg->psz_header,
434 ppsz_type[p_msg->i_type],
435 p_msg->psz_module, p_msg->psz_msg );
437 syslog( i_priority, "%s%s: %s", p_msg->psz_module,
438 ppsz_type[p_msg->i_type], p_msg->psz_msg );
443 static void HtmlPrint( const msg_item_t *p_msg, FILE *p_file )
445 static const char *ppsz_color[4] = { "<span style=\"color: #ffffff\">",
446 "<span style=\"color: #ff6666\">",
447 "<span style=\"color: #ffff66\">",
448 "<span style=\"color: #aaaaaa\">" };
450 LOG_STRING( p_msg->psz_module, p_file );
451 LOG_STRING( ppsz_type[p_msg->i_type], p_file );
452 LOG_STRING( ppsz_color[p_msg->i_type], p_file );
453 LOG_STRING( p_msg->psz_msg, p_file );
454 LOG_STRING( "</span>\n", p_file );
457 static void DoRRD( intf_thread_t *p_intf )
459 if( mdate() - p_intf->p_sys->last_update < 1000000 )
461 p_intf->p_sys->last_update = mdate();
463 if( p_intf->p_libvlc->p_stats )
465 lldiv_t din = lldiv( p_intf->p_libvlc->p_stats->f_input_bitrate * 1000000,
467 lldiv_t ddm = lldiv( p_intf->p_libvlc->p_stats->f_demux_bitrate * 1000000,
469 lldiv_t dout = lldiv( p_intf->p_libvlc->p_stats->f_output_bitrate * 1000000,
471 fprintf( p_intf->p_sys->p_rrd,
472 "%"PRIi64":%lld.%03u:%lld.%03u:%lld.%03u\n",
473 p_intf->p_sys->last_update/1000000,
474 din.quot, (unsigned int)din.rem,
475 ddm.quot, (unsigned int)ddm.rem,
476 dout.quot, (unsigned int)dout.rem );
477 fflush( p_intf->p_sys->p_rrd );