[babeltrace.git] / src / lib / logging.c

/*
 * SPDX-License-Identifier: MIT
 *
 * Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
 */

#include <babeltrace2/babeltrace.h>

#define BT_LOG_TAG "LIB/LOGGING"
#include "lib/logging.h"

/*
 * This is exported because even though the Python plugin provider is a
 * different shared object for packaging purposes, it's still considered
 * part of the library and therefore needs the library's run-time log
 * level.
 *
 * The default log level is NONE: we don't print logging statements for
 * any executable which links with the library. The executable must call
 * bt_logging_set_global_level() or the executable's user must set the
 * `LIBBABELTRACE2_INIT_LOG_LEVEL` environment variable to enable
 * logging.
 */
BT_EXPORT
int bt_lib_log_level = BT_LOG_NONE;

BT_EXPORT
enum bt_logging_level bt_logging_get_minimal_level(void)
{
	return BT_LOG_MINIMAL_LEVEL;
}

BT_EXPORT
enum bt_logging_level bt_logging_get_global_level(void)
{
	return bt_lib_log_level;
}

BT_EXPORT
void bt_logging_set_global_level(enum bt_logging_level log_level)
{
	bt_lib_log_level = log_level;
}

static
void __attribute__((constructor)) bt_logging_ctor(void)
{
	const char *v_extra = bt_version_get_development_stage() ?
		bt_version_get_development_stage() : "";

	bt_logging_set_global_level(
		(int) bt_log_get_level_from_env("LIBBABELTRACE2_INIT_LOG_LEVEL"));
	BT_LOGI("Babeltrace %u.%u.%u%s library loaded: "
		"major=%u, minor=%u, patch=%u, extra=\"%s\"",
		bt_version_get_major(), bt_version_get_minor(),
		bt_version_get_patch(), v_extra,
		bt_version_get_major(), bt_version_get_minor(),
		bt_version_get_patch(), v_extra);
}
Commit	Line	Data
	1	/*
	2	* SPDX-License-Identifier: MIT
	3	*
	4	* Copyright 2017-2018 Philippe Proulx <pproulx@efficios.com>
	5	*/
	6
	7	#include <babeltrace2/babeltrace.h>
	8
	9	#define BT_LOG_TAG "LIB/LOGGING"
	10	#include "lib/logging.h"
	11
	12	/*
	13	* This is exported because even though the Python plugin provider is a
	14	* different shared object for packaging purposes, it's still considered
	15	* part of the library and therefore needs the library's run-time log
	16	* level.
	17	*
	18	* The default log level is NONE: we don't print logging statements for
	19	* any executable which links with the library. The executable must call
	20	* bt_logging_set_global_level() or the executable's user must set the
	21	* `LIBBABELTRACE2_INIT_LOG_LEVEL` environment variable to enable
	22	* logging.
	23	*/
	24	BT_EXPORT
	25	int bt_lib_log_level = BT_LOG_NONE;
	26
	27	BT_EXPORT
	28	enum bt_logging_level bt_logging_get_minimal_level(void)
	29	{
	30	return BT_LOG_MINIMAL_LEVEL;
	31	}
	32
	33	BT_EXPORT
	34	enum bt_logging_level bt_logging_get_global_level(void)
	35	{
	36	return bt_lib_log_level;
	37	}
	38
	39	BT_EXPORT
	40	void bt_logging_set_global_level(enum bt_logging_level log_level)
	41	{
	42	bt_lib_log_level = log_level;
	43	}
	44
	45	static
	46	void __attribute__((constructor)) bt_logging_ctor(void)
	47	{
	48	const char *v_extra = bt_version_get_development_stage() ?
	49	bt_version_get_development_stage() : "";
	50
	51	bt_logging_set_global_level(
	52	(int) bt_log_get_level_from_env("LIBBABELTRACE2_INIT_LOG_LEVEL"));
	53	BT_LOGI("Babeltrace %u.%u.%u%s library loaded: "
	54	"major=%u, minor=%u, patch=%u, extra=\"%s\"",
	55	bt_version_get_major(), bt_version_get_minor(),
	56	bt_version_get_patch(), v_extra,
	57	bt_version_get_major(), bt_version_get_minor(),
	58	bt_version_get_patch(), v_extra);
	59	}