| 1 | /* |
| 2 | * SPDX-License-Identifier: MIT |
| 3 | * |
| 4 | * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #include <stdlib.h> |
| 8 | #include <babeltrace2/babeltrace.h> |
| 9 | |
| 10 | #define BT_LOG_TAG "LIB/LOGGING" |
| 11 | #include "lib/logging.h" |
| 12 | |
| 13 | /* |
| 14 | * This is exported because even though the Python plugin provider is a |
| 15 | * different shared object for packaging purposes, it's still considered |
| 16 | * part of the library and therefore needs the library's run-time log |
| 17 | * level. |
| 18 | * |
| 19 | * The default log level is NONE: we don't print logging statements for |
| 20 | * any executable which links with the library. The executable must call |
| 21 | * bt_logging_set_global_level() or the executable's user must set the |
| 22 | * `LIBBABELTRACE2_INIT_LOG_LEVEL` environment variable to enable |
| 23 | * logging. |
| 24 | */ |
| 25 | int bt_lib_log_level = BT_LOG_NONE; |
| 26 | |
| 27 | enum bt_logging_level bt_logging_get_minimal_level(void) |
| 28 | { |
| 29 | return BT_MINIMAL_LOG_LEVEL; |
| 30 | } |
| 31 | |
| 32 | enum bt_logging_level bt_logging_get_global_level(void) |
| 33 | { |
| 34 | return bt_lib_log_level; |
| 35 | } |
| 36 | |
| 37 | void bt_logging_set_global_level(enum bt_logging_level log_level) |
| 38 | { |
| 39 | bt_lib_log_level = log_level; |
| 40 | } |
| 41 | |
| 42 | static |
| 43 | void __attribute__((constructor)) bt_logging_ctor(void) |
| 44 | { |
| 45 | const char *v_extra = bt_version_get_development_stage() ? |
| 46 | bt_version_get_development_stage() : ""; |
| 47 | |
| 48 | bt_logging_set_global_level( |
| 49 | bt_log_get_level_from_env("LIBBABELTRACE2_INIT_LOG_LEVEL")); |
| 50 | BT_LOGI("Babeltrace %u.%u.%u%s library loaded: " |
| 51 | "major=%u, minor=%u, patch=%u, extra=\"%s\"", |
| 52 | bt_version_get_major(), bt_version_get_minor(), |
| 53 | bt_version_get_patch(), v_extra, |
| 54 | bt_version_get_major(), bt_version_get_minor(), |
| 55 | bt_version_get_patch(), v_extra); |
| 56 | } |