2 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #include <babeltrace2/logging.h>
25 #include <babeltrace2/version.h>
27 #define BT_LOG_TAG "LIB/LOGGING"
28 #include "lib/logging.h"
32 * Default log level is FATAL in developer mode because fatal logging is
33 * our way to communicate an unsatisfied precondition and the details.
35 # define DEFAULT_LOG_LEVEL BT_LOG_FATAL
38 * In non-developer mode, use NONE by default: we don't print logging
39 * statements for any executable which links with the library. The
40 * executable must call bt_logging_set_global_level() or the
41 * executable's user must set the `LIBBABELTRACE2_INIT_LOG_LEVEL`
42 * environment variable to enable logging.
44 # define DEFAULT_LOG_LEVEL BT_LOG_NONE
45 #endif /* BT_DEV_MODE */
48 * This is exported because even though the Python plugin provider is a
49 * different shared object for packaging purposes, it's still considered
50 * part of the library and therefore needs the library's run-time log
53 int bt_lib_log_level
= DEFAULT_LOG_LEVEL
;
55 enum bt_logging_level
bt_logging_get_minimal_level(void)
60 enum bt_logging_level
bt_logging_get_global_level(void)
62 return bt_lib_log_level
;
65 void bt_logging_set_global_level(enum bt_logging_level log_level
)
69 * Do not allow the library's log level to fall to NONE when in
70 * developer mode because fatal logging is our way to
71 * communicate an unsatisfied precondition and the details.
73 if (log_level
== BT_LOG_NONE
) {
74 log_level
= BT_LOG_FATAL
;
78 bt_lib_log_level
= log_level
;
82 void __attribute__((constructor
)) bt_logging_ctor(void)
84 const char *v_extra
= bt_version_get_extra() ? bt_version_get_extra() :
87 bt_logging_set_global_level(
88 bt_log_get_level_from_env("LIBBABELTRACE2_INIT_LOG_LEVEL"));
89 BT_LOGI("Babeltrace %d.%d.%d%s library loaded: "
90 "major=%d, minor=%d, patch=%d, extra=\"%s\"",
91 bt_version_get_major(), bt_version_get_minor(),
92 bt_version_get_patch(), v_extra
,
93 bt_version_get_major(), bt_version_get_minor(),
94 bt_version_get_patch(), v_extra
);