libdvbv5: lib/include/libdvbv5/dvb-log.h Source File

libdvbv5 1.32.0 Library to work with Digital TV devices on Linux

dvb-log.h
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1/*
2 * Copyright (c) 2011-2014 - Mauro Carvalho Chehab
3 * Copyright (c) 2012 - Andre Roth <neolynx@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU Lesser General Public License as published by
7 * the Free Software Foundation version 2.1 of the License.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 * Or, point your browser to http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
18 *
19 */
20
21#ifndef _LOG_H
22#define _LOG_H
23
24#include <syslog.h>
25
37
43
44 typedef void (*dvb_logfunc)(int level, const char *fmt, ...) __attribute__ (( format( printf, 2, 3 )));
45
51
52 typedef void (*dvb_logfunc_priv)(void *logpriv, int level, const char *fmt, ...);
53
54/*
55 * Macros used internally inside libdvbv5 frontend part, to output logs
56 */
57
58#ifndef _DOXYGEN
59
60struct dvb_v5_fe_parms;
64 dvb_logfunc_priv dvb_get_log_priv(struct dvb_v5_fe_parms *, void **);
65
66#ifndef __DVB_FE_PRIV_H
67
68#define dvb_loglevel(level, fmt, arg...) do {\
69 void *priv;\
70 dvb_logfunc_priv f = dvb_get_log_priv(parms, &priv);\
71 if (f) {\
72 f(priv, level, fmt, ##arg);\
73 } else {\
74 parms->logfunc(level, fmt, ##arg); \
75 }\
76} while (0)
77
78#else
79
80#define dvb_loglevel(level, fmt, arg...) do {\
81 if (parms->logfunc_priv) {\
82 parms->logfunc_priv(parms->logpriv, level, fmt, ##arg);\
83 } else {\
84 parms->p.logfunc(level, fmt, ##arg); \
85 }\
86} while (0)
87
88#endif
89
90#define dvb_log(fmt, arg...) dvb_loglevel(LOG_INFO, fmt, ##arg)
91#define dvb_logerr(fmt, arg...) dvb_loglevel(LOG_ERR, fmt, ##arg)
92#define dvb_logdbg(fmt, arg...) dvb_loglevel(LOG_DEBUG, fmt, ##arg)
93#define dvb_logwarn(fmt, arg...) dvb_loglevel(LOG_WARNING, fmt, ##arg)
94#define dvb_loginfo(fmt, arg...) dvb_loglevel(LOG_NOTICE, fmt, ##arg)
95
96#define dvb_perror(msg) dvb_logerr("%s: %s", msg, strerror(errno))
97
98#endif /* _DOXYGEN */
99
108 void dvb_default_log(int level, const char *fmt, ...) __attribute__ (( format( printf, 2, 3 )));
109
110#endif
dvb_logfunc_priv
void(* dvb_logfunc_priv)(void *logpriv, int level, const char *fmt,...)
Definition dvb-log.h:52
dvb_logfunc
void(* dvb_logfunc)(int level, const char *fmt,...)
typedef used by dvb_fe_open2 for the log function
Definition dvb-log.h:44
dvb_default_log
void dvb_default_log(int level, const char *fmt,...)
This is the prototype of the internal log function that it is used, if the library client doesn't des...
dvb_v5_fe_parms
Keeps data needed to handle the DVB frontend.
Definition dvb-fe.h:117