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 *****************************************************************************/
28 #include <errno.h> /* ENOMEM */
32 # define _IONBF 0x0004
36 #include <vlc_interface.h>
37 #include <vlc_playlist.h>
38 #include <vlc_charset.h>
45 #define LOG_DIR "Library/Logs/"
48 #define LOG_FILE_TEXT "vlc-log.txt"
49 #define LOG_FILE_HTML "vlc-log.html"
51 #define LOG_STRING( msg, file ) fwrite( msg, strlen( msg ), 1, file );
53 #define TEXT_HEADER "-- logger module started --\n"
54 #define TEXT_FOOTER "-- logger module stopped --\n"
59 " <title>vlc log</title>\n" \
61 " <body bgcolor=\"#000000\" text=\"#aaaaaa\">\n" \
63 " <b>-- logger module started --</b>\n"
65 " <b>-- logger module stopped --</b>\n" \
74 /*****************************************************************************
75 * intf_sys_t: description and status of log interface
76 *****************************************************************************/
83 FILE * p_file; /* The log file */
84 msg_subscription_t *p_sub;
87 /*****************************************************************************
89 *****************************************************************************/
90 static int Open ( vlc_object_t * );
91 static void Close ( vlc_object_t * );
92 static void Run ( intf_thread_t * );
94 static void FlushQueue ( msg_subscription_t *, FILE *, int );
95 static void TextPrint ( const msg_item_t *, FILE * );
96 static void HtmlPrint ( const msg_item_t *, FILE * );
98 static void SyslogPrint ( const msg_item_t *);
101 static void DoRRD( intf_thread_t *p_intf );
103 /*****************************************************************************
105 *****************************************************************************/
106 static const char *mode_list[] = { "text", "html"
111 static const char *mode_list_text[] = { N_("Text"), "HTML"
117 #define LOGMODE_TEXT N_("Log format")
119 #define LOGMODE_LONGTEXT N_("Specify the log format. Available choices are " \
120 "\"text\" (default), \"html\", and \"syslog\" (special mode to send to " \
121 "syslog instead of file.")
123 #define LOGMODE_LONGTEXT N_("Specify the log format. Available choices are " \
124 "\"text\" (default) and \"html\".")
128 set_shortname( _( "Logging" ) );
129 set_description( _("File logging") );
131 set_category( CAT_ADVANCED );
132 set_subcategory( SUBCAT_ADVANCED_MISC );
134 add_file( "logfile", NULL, NULL,
135 N_("Log filename"), N_("Specify the log filename."), VLC_FALSE );
136 add_string( "logmode", "text", NULL, LOGMODE_TEXT, LOGMODE_LONGTEXT,
138 change_string_list( mode_list, mode_list_text, 0 );
140 add_file( "rrd-file", NULL, NULL, N_("RRD output file") ,
141 N_("Output data for RRDTool in this file." ), VLC_TRUE );
143 set_capability( "interface", 0 );
144 set_callbacks( Open, Close );
147 /*****************************************************************************
148 * Open: initialize and create stuff
149 *****************************************************************************/
150 static int Open( vlc_object_t *p_this )
152 intf_thread_t *p_intf = (intf_thread_t *)p_this;
153 char *psz_mode, *psz_file, *psz_rrd_file;
156 msg_Info( p_intf, "using logger..." );
158 /* Allocate instance and initialize some members */
159 p_intf->p_sys = (intf_sys_t *)malloc( sizeof( intf_sys_t ) );
160 if( p_intf->p_sys == NULL )
162 msg_Err( p_intf, "out of memory" );
166 psz_mode = var_CreateGetString( p_intf, "logmode" );
169 if( !strcmp( psz_mode, "text" ) )
171 p_intf->p_sys->i_mode = MODE_TEXT;
173 else if( !strcmp( psz_mode, "html" ) )
175 p_intf->p_sys->i_mode = MODE_HTML;
178 else if( !strcmp( psz_mode, "syslog" ) )
180 p_intf->p_sys->i_mode = MODE_SYSLOG;
185 msg_Warn( p_intf, "invalid log mode `%s', using `text'", psz_mode );
186 p_intf->p_sys->i_mode = MODE_TEXT;
193 msg_Warn( p_intf, "no log mode specified, using `text'" );
194 p_intf->p_sys->i_mode = MODE_TEXT;
197 if( p_intf->p_sys->i_mode != MODE_SYSLOG )
199 psz_file = config_GetPsz( p_intf, "logfile" );
203 char *psz_homedir = p_this->p_libvlc->psz_homedir;
207 msg_Err( p_this, "unable to find home directory" );
210 psz_file = (char *)malloc( sizeof("/" LOG_DIR "/" LOG_FILE_HTML) +
211 strlen(psz_homedir) );
214 switch( p_intf->p_sys->i_mode )
217 sprintf( psz_file, "%s/" LOG_DIR "/" LOG_FILE_HTML,
222 sprintf( psz_file, "%s/" LOG_DIR "/" LOG_FILE_TEXT,
228 switch( p_intf->p_sys->i_mode )
231 psz_file = strdup( LOG_FILE_HTML );
235 psz_file = strdup( LOG_FILE_TEXT );
239 msg_Warn( p_intf, "no log filename provided, using `%s'",
243 /* Open the log file and remove any buffering for the stream */
244 msg_Dbg( p_intf, "opening logfile `%s'", psz_file );
245 p_intf->p_sys->p_file = utf8_fopen( psz_file, "at" );
246 if( p_intf->p_sys->p_file == NULL )
248 msg_Err( p_intf, "error opening logfile `%s'", psz_file );
249 free( p_intf->p_sys );
253 setvbuf( p_intf->p_sys->p_file, NULL, _IONBF, 0 );
257 switch( p_intf->p_sys->i_mode )
260 LOG_STRING( HTML_HEADER, p_intf->p_sys->p_file );
264 LOG_STRING( TEXT_HEADER, p_intf->p_sys->p_file );
271 p_intf->p_sys->p_file = NULL;
273 openlog( "VLC", 0, LOG_DAEMON );
277 p_intf->p_sys->last_update = 0;
278 p_intf->p_sys->p_rrd = NULL;
280 psz_rrd_file = config_GetPsz( p_intf, "rrd-file" );
281 if( psz_rrd_file && *psz_rrd_file )
283 p_intf->p_sys->p_rrd = utf8_fopen( psz_rrd_file, "w" );
286 p_intf->p_sys->p_sub = msg_Subscribe( p_intf , MSG_QUEUE_NORMAL );
287 p_intf->pf_run = Run;
292 /*****************************************************************************
293 * Close: destroy interface stuff
294 *****************************************************************************/
295 static void Close( vlc_object_t *p_this )
297 intf_thread_t *p_intf = (intf_thread_t *)p_this;
299 /* Flush the queue and unsubscribe from the message queue */
300 FlushQueue( p_intf->p_sys->p_sub, p_intf->p_sys->p_file,
301 p_intf->p_sys->i_mode );
302 msg_Unsubscribe( p_intf, p_intf->p_sys->p_sub );
304 switch( p_intf->p_sys->i_mode )
307 LOG_STRING( HTML_FOOTER, p_intf->p_sys->p_file );
316 LOG_STRING( TEXT_FOOTER, p_intf->p_sys->p_file );
320 /* Close the log file */
321 if( p_intf->p_sys->i_mode != MODE_SYSLOG )
322 fclose( p_intf->p_sys->p_file );
324 /* Destroy structure */
325 free( p_intf->p_sys );
328 /*****************************************************************************
330 *****************************************************************************
331 * This part of the interface is in a separate thread so that we can call
332 * exec() from within it without annoying the rest of the program.
333 *****************************************************************************/
334 static void Run( intf_thread_t *p_intf )
336 while( !p_intf->b_die )
338 FlushQueue( p_intf->p_sys->p_sub, p_intf->p_sys->p_file,
339 p_intf->p_sys->i_mode );
341 if( p_intf->p_sys->p_rrd )
344 msleep( INTF_IDLE_SLEEP );
348 /*****************************************************************************
349 * FlushQueue: flush the message queue into the log
350 *****************************************************************************/
351 static void FlushQueue( msg_subscription_t *p_sub, FILE *p_file, int i_mode )
355 vlc_mutex_lock( p_sub->p_lock );
356 i_stop = *p_sub->pi_stop;
357 vlc_mutex_unlock( p_sub->p_lock );
359 if( p_sub->i_start != i_stop )
361 /* Append all messages to log file */
362 for( i_start = p_sub->i_start;
364 i_start = (i_start+1) % VLC_MSG_QSIZE )
369 HtmlPrint( &p_sub->p_msg[i_start], p_file );
373 SyslogPrint( &p_sub->p_msg[i_start] );
378 TextPrint( &p_sub->p_msg[i_start], p_file );
383 vlc_mutex_lock( p_sub->p_lock );
384 p_sub->i_start = i_start;
385 vlc_mutex_unlock( p_sub->p_lock );
389 static const char *ppsz_type[4] = { ": ", " error: ",
390 " warning: ", " debug: " };
392 static void TextPrint( const msg_item_t *p_msg, FILE *p_file )
394 LOG_STRING( p_msg->psz_module, p_file );
395 LOG_STRING( ppsz_type[p_msg->i_type], p_file );
396 LOG_STRING( p_msg->psz_msg, p_file );
397 LOG_STRING( "\n", p_file );
401 static void SyslogPrint( const msg_item_t *p_msg )
403 int i_priority = LOG_INFO;
405 if( p_msg->i_type == 0 ) i_priority = LOG_INFO;
406 if( p_msg->i_type == 1 ) i_priority = LOG_ERR;
407 if( p_msg->i_type == 2 ) i_priority = LOG_WARNING;
408 if( p_msg->i_type == 3 ) i_priority = LOG_DEBUG;
410 if( p_msg->psz_header )
411 syslog( i_priority, "%s %s: %s", p_msg->psz_header,
412 p_msg->psz_module, p_msg->psz_msg );
414 syslog( i_priority, "%s: %s", p_msg->psz_module, p_msg->psz_msg );
419 static void HtmlPrint( const msg_item_t *p_msg, FILE *p_file )
421 static const char *ppsz_color[4] = { "<font color=\"#ffffff\">",
422 "<font color=\"#ff6666\">",
423 "<font color=\"#ffff66\">",
424 "<font color=\"#aaaaaa\">" };
426 LOG_STRING( p_msg->psz_module, p_file );
427 LOG_STRING( ppsz_type[p_msg->i_type], p_file );
428 LOG_STRING( ppsz_color[p_msg->i_type], p_file );
429 LOG_STRING( p_msg->psz_msg, p_file );
430 LOG_STRING( "</font>\n", p_file );
433 static void DoRRD( intf_thread_t *p_intf )
435 playlist_t *p_playlist;
436 if( mdate() - p_intf->p_sys->last_update < 1000000 )
438 p_intf->p_sys->last_update = mdate();
440 p_playlist = (playlist_t *)vlc_object_find( p_intf, VLC_OBJECT_PLAYLIST,
442 if( p_playlist && p_playlist->p_stats )
444 lldiv_t din = lldiv( p_playlist->p_stats->f_input_bitrate * 1000000,
446 lldiv_t ddm = lldiv( p_playlist->p_stats->f_demux_bitrate * 1000000,
448 lldiv_t dout = lldiv( p_playlist->p_stats->f_output_bitrate * 1000000,
450 fprintf( p_intf->p_sys->p_rrd,
451 I64Fi":%lld.%03u:%lld.%03u:%lld.%03u\n",
452 p_intf->p_sys->last_update/1000000,
453 din.quot, (unsigned int)din.rem,
454 ddm.quot, (unsigned int)ddm.rem,
455 dout.quot, (unsigned int)dout.rem );
456 fflush( p_intf->p_sys->p_rrd );
457 vlc_object_release( p_playlist );