1 /*****************************************************************************
2 * log.c: libvlc new API log functions
3 *****************************************************************************
4 * Copyright (C) 2005 the VideoLAN team
8 * Authors: Damien Fouilleul <damienf@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 #include "libvlc_internal.h"
26 #include <vlc/libvlc.h>
30 libvlc_instance_t *p_instance;
31 msg_subscription_t *p_messages;
34 struct libvlc_log_iterator_t
36 msg_subscription_t *p_messages;
42 unsigned libvlc_get_log_verbosity( const libvlc_instance_t *p_instance, libvlc_exception_t *p_e )
46 return p_instance->p_libvlc_int->i_verbose;
48 RAISEZERO("Invalid VLC instance!");
51 void libvlc_set_log_verbosity( libvlc_instance_t *p_instance, unsigned level, libvlc_exception_t *p_e )
55 p_instance->p_libvlc_int->i_verbose = level;
58 RAISEVOID("Invalid VLC instance!");
61 libvlc_log_t *libvlc_log_open( libvlc_instance_t *p_instance, libvlc_exception_t *p_e )
63 struct libvlc_log_t *p_log =
64 (struct libvlc_log_t *)malloc(sizeof(struct libvlc_log_t));
66 if( !p_log ) RAISENULL( "Out of memory" );
68 p_log->p_instance = p_instance;
69 p_log->p_messages = msg_Subscribe(p_instance->p_libvlc_int, MSG_QUEUE_NORMAL);
71 if( !p_log->p_messages )
74 RAISENULL( "Out of memory" );
77 libvlc_retain( p_instance );
81 void libvlc_log_close( libvlc_log_t *p_log, libvlc_exception_t *p_e )
83 if( p_log && p_log->p_messages )
85 msg_Unsubscribe(p_log->p_instance->p_libvlc_int, p_log->p_messages);
86 libvlc_release( p_log->p_instance );
90 RAISEVOID("Invalid log object!");
93 unsigned libvlc_log_count( const libvlc_log_t *p_log, libvlc_exception_t *p_e )
95 if( p_log && p_log->p_messages )
97 int i_start = p_log->p_messages->i_start;
98 int i_stop = *(p_log->p_messages->pi_stop);
100 if( i_stop >= i_start )
101 return i_stop-i_start;
103 return VLC_MSG_QSIZE-(i_start-i_stop);
105 RAISEZERO("Invalid log object!");
108 void libvlc_log_clear( libvlc_log_t *p_log, libvlc_exception_t *p_e )
110 if( p_log && p_log->p_messages )
112 vlc_mutex_lock(p_log->p_messages->p_lock);
113 p_log->p_messages->i_start = *(p_log->p_messages->pi_stop);
114 vlc_mutex_unlock(p_log->p_messages->p_lock);
117 RAISEVOID("Invalid log object!");
120 libvlc_log_iterator_t *libvlc_log_get_iterator( const libvlc_log_t *p_log, libvlc_exception_t *p_e )
122 if( p_log && p_log->p_messages )
124 struct libvlc_log_iterator_t *p_iter =
125 (struct libvlc_log_iterator_t *)malloc(sizeof(struct libvlc_log_iterator_t));
127 if( !p_iter ) RAISENULL( "Out of memory" );
129 vlc_mutex_lock(p_log->p_messages->p_lock);
130 p_iter->p_messages = p_log->p_messages;
131 p_iter->i_start = p_log->p_messages->i_start;
132 p_iter->i_pos = p_log->p_messages->i_start;
133 p_iter->i_end = *(p_log->p_messages->pi_stop);
134 vlc_mutex_unlock(p_log->p_messages->p_lock);
138 RAISENULL("Invalid log object!");
141 void libvlc_log_iterator_free( libvlc_log_iterator_t *p_iter, libvlc_exception_t *p_e )
148 RAISEVOID("Invalid log iterator!");
151 int libvlc_log_iterator_has_next( const libvlc_log_iterator_t *p_iter, libvlc_exception_t *p_e )
155 return p_iter->i_pos != p_iter->i_end;
157 RAISEZERO("Invalid log iterator!");
160 libvlc_log_message_t *libvlc_log_iterator_next( libvlc_log_iterator_t *p_iter,
161 struct libvlc_log_message_t *buffer,
162 libvlc_exception_t *p_e )
166 if( buffer && (sizeof(struct libvlc_log_message_t) == buffer->sizeof_msg) )
168 int i_pos = p_iter->i_pos;
169 if( i_pos != p_iter->i_end )
172 vlc_mutex_lock(p_iter->p_messages->p_lock);
173 msg = p_iter->p_messages->p_msg+i_pos;
174 buffer->i_severity = msg->i_type;
175 buffer->psz_type = msg_GetObjectTypeName(msg->i_object_type);
176 buffer->psz_name = msg->psz_module;
177 buffer->psz_header = msg->psz_header;
178 buffer->psz_message = msg->psz_msg;
179 p_iter->i_pos = ++i_pos % VLC_MSG_QSIZE;
180 vlc_mutex_unlock(p_iter->p_messages->p_lock);
184 RAISENULL("No more messages");
186 RAISENULL("Invalid message buffer!");
188 RAISENULL("Invalid log iterator!");