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;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #define _GNU_SOURCE /* for vasprintf */
34 #include <ecoli_malloc.h>
35 #include <ecoli_string.h>
36 #include <ecoli_log.h>
38 static ec_log_t ec_log_fct = ec_log_default_cb;
39 static void *ec_log_opaque;
43 enum ec_log_level level;
46 static struct ec_log_type *log_types;
47 static size_t log_types_len;
48 static enum ec_log_level global_level = EC_LOG_WARNING;
50 int ec_log_level_set(enum ec_log_level level)
52 if (level < 0 || level > EC_LOG_DEBUG)
59 enum ec_log_level ec_log_level_get(void)
64 int ec_log_default_cb(int type, enum ec_log_level level, void *opaque,
69 if (level > ec_log_level_get())
72 if (fprintf(stderr, "[%d] %-12s %s", level, ec_log_name(type), str) < 0)
78 int ec_log_fct_register(ec_log_t usr_log, void *opaque)
82 if (usr_log == NULL) {
83 ec_log_fct = ec_log_default_cb;
87 ec_log_opaque = opaque;
94 ec_log_lookup(const char *name)
98 for (i = 0; i < log_types_len; i++) {
99 if (log_types[i].name == NULL)
101 if (strcmp(name, log_types[i].name) == 0)
109 ec_log_type_register(const char *name)
111 struct ec_log_type *new_types;
115 id = ec_log_lookup(name);
119 new_types = ec_realloc(log_types,
120 sizeof(*new_types) * (log_types_len + 1));
121 if (new_types == NULL)
122 return -1; /* errno is set */
123 log_types = new_types;
125 copy = ec_strdup(name);
127 return -1; /* errno is set */
129 id = log_types_len++;
130 log_types[id].name = copy;
131 log_types[id].level = EC_LOG_DEBUG;
137 ec_log_name(int type)
139 if (type < 0 || (unsigned int)type >= log_types_len)
141 return log_types[type].name;
144 int ec_vlog(int type, enum ec_log_level level, const char *format, va_list ap)
149 /* don't use ec_vasprintf here, because it will call
150 * ec_malloc(), then ec_log(), ec_vasprintf()...
151 * -> stack overflow */
152 ret = vasprintf(&s, format, ap);
156 ret = ec_log_fct(type, level, ec_log_opaque, s);
162 int ec_log(int type, enum ec_log_level level, const char *format, ...)
167 va_start(ap, format);
168 ret = ec_vlog(type, level, format, ap);