2 * Copyright (c) 2016, Olivier MATZ <zer0@droids-corp.org>
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the University of California, Berkeley nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
16 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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31 #define EC_LOG_EMERG 0 /* system is unusable */
32 #define EC_LOG_ALERT 1 /* action must be taken immediately */
33 #define EC_LOG_CRIT 2 /* critical conditions */
34 #define EC_LOG_ERR 3 /* error conditions */
35 #define EC_LOG_WARNING 4 /* warning conditions */
36 #define EC_LOG_NOTICE 5 /* normal but significant condition */
37 #define EC_LOG_INFO 6 /* informational */
38 #define EC_LOG_DEBUG 7 /* debug-level messages */
42 #define EC_LOG_TYPE_REGISTER(name) \
43 static int name##_log_type; \
44 static int local_log_type; \
45 __attribute__((constructor, used)) \
46 static void ec_log_register_##name(void) \
48 local_log_type = ec_log_type_register(#name); \
49 name##_log_type = local_log_type; \
53 /* return -1 on error, len(s) on success */
54 typedef int (*ec_log_t)(int type, unsigned int level, void *opaque,
57 int ec_log_fct_register(ec_log_t usr_log, void *opaque);
58 void ec_log_fct_unregister(void);
60 int ec_log_type_register(const char *name);
62 const char *ec_log_name(int type);
64 /* same api than printf */
65 int ec_log(int type, unsigned int level, const char *format, ...)
66 __attribute__((format(__printf__, 3, 4)));
68 int ec_vlog(int type, unsigned int level, const char *format, va_list ap);
70 /* to use the macros, the user must have called EC_LOG_TYPE_REGISTER */
71 #define EC_LOG(level, args...) ec_log(local_log_type, level, args)
72 #define EC_VLOG(level, fmt, ap) ec_vlog(local_log_type, level, fmt, ap)
74 /* default log handler for the library, use printf */
75 int ec_log_default(int type, unsigned int level, void *opaque, const char *str);