+++ /dev/null
-/*
- * This is zf_log.h, modified with Babeltrace prefixes.
- * See <https://github.com/wonder-mice/zf_log/>.
- * See logging/LICENSE in the Babeltrace source tree.
- */
-
-#pragma once
-
-#ifndef BABELTRACE_LOGGING_INTERNAL_H
-#define BABELTRACE_LOGGING_INTERNAL_H
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <babeltrace/logging.h>
-#include <babeltrace/babeltrace-internal.h>
-
-/* To detect incompatible changes you can define BT_LOG_VERSION_REQUIRED to be
- * the current value of BT_LOG_VERSION before including this file (or via
- * compiler command line):
- *
- * #define BT_LOG_VERSION_REQUIRED 4
- * #include <babeltrace/logging-internal.h>
- *
- * Compilation will fail when included file has different version.
- */
-#define BT_LOG_VERSION 4
-#if defined(BT_LOG_VERSION_REQUIRED)
- #if BT_LOG_VERSION_REQUIRED != BT_LOG_VERSION
- #error different bt_log version required
- #endif
-#endif
-
-/* Log level guideline:
- * - BT_LOG_FATAL - happened something impossible and absolutely unexpected.
- * Process can't continue and must be terminated.
- * Example: division by zero, unexpected modifications from other thread.
- * - BT_LOG_ERROR - happened something possible, but highly unexpected. The
- * process is able to recover and continue execution.
- * Example: out of memory (could also be FATAL if not handled properly).
- * - BT_LOG_WARN - happened something that *usually* should not happen and
- * significantly changes application behavior for some period of time.
- * Example: configuration file not found, auth error.
- * - BT_LOG_INFO - happened significant life cycle event or major state
- * transition.
- * Example: app started, user logged in.
- * - BT_LOG_DEBUG - minimal set of events that could help to reconstruct the
- * execution path. Usually disabled in release builds.
- * - BT_LOG_VERBOSE - all other events. Usually disabled in release builds.
- *
- * *Ideally*, log file of debugged, well tested, production ready application
- * should be empty or very small. Choosing a right log level is as important as
- * providing short and self descriptive log message.
- */
-#define BT_LOG_VERBOSE BT_LOGGING_LEVEL_VERBOSE
-#define BT_LOG_DEBUG BT_LOGGING_LEVEL_DEBUG
-#define BT_LOG_INFO BT_LOGGING_LEVEL_INFO
-#define BT_LOG_WARN BT_LOGGING_LEVEL_WARN
-#define BT_LOG_ERROR BT_LOGGING_LEVEL_ERROR
-#define BT_LOG_FATAL BT_LOGGING_LEVEL_FATAL
-#define BT_LOG_NONE BT_LOGGING_LEVEL_NONE
-
-/* "Current" log level is a compile time check and has no runtime overhead. Log
- * level that is below current log level it said to be "disabled". Otherwise,
- * it's "enabled". Log messages that are disabled has no runtime overhead - they
- * are converted to no-op by preprocessor and then eliminated by compiler.
- * Current log level is configured per compilation module (.c/.cpp/.m file) by
- * defining BT_LOG_DEF_LEVEL or BT_LOG_LEVEL. BT_LOG_LEVEL has higer priority
- * and when defined overrides value provided by BT_LOG_DEF_LEVEL.
- *
- * Common practice is to define default current log level with BT_LOG_DEF_LEVEL
- * in build script (e.g. Makefile, CMakeLists.txt, gyp, etc.) for the entire
- * project or target:
- *
- * CC_ARGS := -DBT_LOG_DEF_LEVEL=BT_LOG_INFO
- *
- * And when necessary to override it with BT_LOG_LEVEL in .c/.cpp/.m files
- * before including bt_log.h:
- *
- * #define BT_LOG_LEVEL BT_LOG_VERBOSE
- * #include <babeltrace/logging-internal.h>
- *
- * If both BT_LOG_DEF_LEVEL and BT_LOG_LEVEL are undefined, then BT_LOG_INFO
- * will be used for release builds (NDEBUG is defined) and BT_LOG_DEBUG
- * otherwise (NDEBUG is not defined).
- */
-#if defined(BT_LOG_LEVEL)
- #define _BT_LOG_LEVEL BT_LOG_LEVEL
-#elif defined(BT_LOG_DEF_LEVEL)
- #define _BT_LOG_LEVEL BT_LOG_DEF_LEVEL
-#else
- #ifdef NDEBUG
- #define _BT_LOG_LEVEL BT_LOG_INFO
- #else
- #define _BT_LOG_LEVEL BT_LOG_DEBUG
- #endif
-#endif
-
-/* "Output" log level is a runtime check. When log level is below output log
- * level it said to be "turned off" (or just "off" for short). Otherwise it's
- * "turned on" (or just "on"). Log levels that were "disabled" (see
- * BT_LOG_LEVEL and BT_LOG_DEF_LEVEL) can't be "turned on", but "enabled" log
- * levels could be "turned off". Only messages with log level which is
- * "turned on" will reach output facility. All other messages will be ignored
- * (and their arguments will not be evaluated). Output log level is a global
- * property and configured per process using bt_log_set_output_level() function
- * which can be called at any time.
- *
- * Though in some cases it could be useful to configure output log level per
- * compilation module or per library. There are two ways to achieve that:
- * - Define BT_LOG_OUTPUT_LEVEL to expresion that evaluates to desired output
- * log level.
- * - Copy bt_log.h and bt_log.c files into your library and build it with
- * BT_LOG_LIBRARY_PREFIX defined to library specific prefix. See
- * BT_LOG_LIBRARY_PREFIX for more details.
- *
- * When defined, BT_LOG_OUTPUT_LEVEL must evaluate to integral value that
- * corresponds to desired output log level. Use it only when compilation module
- * is required to have output log level which is different from global output
- * log level set by bt_log_set_output_level() function. For other cases,
- * consider defining BT_LOG_LEVEL or using bt_log_set_output_level() function.
- *
- * Example:
- *
- * #define BT_LOG_OUTPUT_LEVEL g_module_log_level
- * #include <babeltrace/logging-internal.h>
- * static int g_module_log_level = BT_LOG_INFO;
- * static void foo() {
- * BT_LOGI("Will check g_module_log_level for output log level");
- * }
- * void debug_log(bool on) {
- * g_module_log_level = on? BT_LOG_DEBUG: BT_LOG_INFO;
- * }
- *
- * Note on performance. This expression will be evaluated each time message is
- * logged (except when message log level is "disabled" - see BT_LOG_LEVEL for
- * details). Keep this expression as simple as possible, otherwise it will not
- * only add runtime overhead, but also will increase size of call site (which
- * will result in larger executable). The prefered way is to use integer
- * variable (as in example above). If structure must be used, log_level field
- * must be the first field in this structure:
- *
- * #define BT_LOG_OUTPUT_LEVEL (g_config.log_level)
- * #include <babeltrace/logging-internal.h>
- * struct config {
- * int log_level;
- * unsigned other_field;
- * [...]
- * };
- * static config g_config = {BT_LOG_INFO, 0, ...};
- *
- * This allows compiler to generate more compact load instruction (no need to
- * specify offset since it's zero). Calling a function to get output log level
- * is generaly a bad idea, since it will increase call site size and runtime
- * overhead even further.
- */
-#if defined(BT_LOG_OUTPUT_LEVEL)
- #define _BT_LOG_OUTPUT_LEVEL BT_LOG_OUTPUT_LEVEL
-#else
- /*
- * We disallow this to make sure Babeltrace modules always
- * have their own local log level.
- */
- #error No log level symbol specified: please define BT_LOG_OUTPUT_LEVEL before including this header.
-#endif
-
-/* "Tag" is a compound string that could be associated with a log message. It
- * consists of tag prefix and tag (both are optional).
- *
- * Tag prefix is a global property and configured per process using
- * bt_log_set_tag_prefix() function. Tag prefix identifies context in which
- * component or module is running (e.g. process name). For example, the same
- * library could be used in both client and server processes that work on the
- * same machine. Tag prefix could be used to easily distinguish between them.
- * For more details about tag prefix see bt_log_set_tag_prefix() function. Tag
- * prefix
- *
- * Tag identifies component or module. It is configured per compilation module
- * (.c/.cpp/.m file) by defining BT_LOG_TAG or BT_LOG_DEF_TAG. BT_LOG_TAG has
- * higer priority and when defined overrides value provided by BT_LOG_DEF_TAG.
- * When defined, value must evaluate to (const char *), so for strings double
- * quotes must be used.
- *
- * Default tag could be defined with BT_LOG_DEF_TAG in build script (e.g.
- * Makefile, CMakeLists.txt, gyp, etc.) for the entire project or target:
- *
- * CC_ARGS := -DBT_LOG_DEF_TAG=\"MISC\"
- *
- * And when necessary could be overriden with BT_LOG_TAG in .c/.cpp/.m files
- * before including bt_log.h:
- *
- * #define BT_LOG_TAG "MAIN"
- * #include <babeltrace/logging-internal.h>
- *
- * If both BT_LOG_DEF_TAG and BT_LOG_TAG are undefined no tag will be added to
- * the log message (tag prefix still could be added though).
- *
- * Output example:
- *
- * 04-29 22:43:20.244 40059 1299 I hello.MAIN Number of arguments: 1
- * | |
- * | +- tag (e.g. module)
- * +- tag prefix (e.g. process name)
- */
-#if defined(BT_LOG_TAG)
- #define _BT_LOG_TAG BT_LOG_TAG
-#elif defined(BT_LOG_DEF_TAG)
- #define _BT_LOG_TAG BT_LOG_DEF_TAG
-#else
- #define _BT_LOG_TAG 0
-#endif
-
-/* Source location is part of a log line that describes location (function or
- * method name, file name and line number, e.g. "runloop@main.cpp:68") of a
- * log statement that produced it.
- * Source location formats are:
- * - BT_LOG_SRCLOC_NONE - don't add source location to log line.
- * - BT_LOG_SRCLOC_SHORT - add source location in short form (file and line
- * number, e.g. "@main.cpp:68").
- * - BT_LOG_SRCLOC_LONG - add source location in long form (function or method
- * name, file and line number, e.g. "runloop@main.cpp:68").
- */
-#define BT_LOG_SRCLOC_NONE 0
-#define BT_LOG_SRCLOC_SHORT 1
-#define BT_LOG_SRCLOC_LONG 2
-
-/* Source location format is configured per compilation module (.c/.cpp/.m
- * file) by defining BT_LOG_DEF_SRCLOC or BT_LOG_SRCLOC. BT_LOG_SRCLOC has
- * higer priority and when defined overrides value provided by
- * BT_LOG_DEF_SRCLOC.
- *
- * Common practice is to define default format with BT_LOG_DEF_SRCLOC in
- * build script (e.g. Makefile, CMakeLists.txt, gyp, etc.) for the entire
- * project or target:
- *
- * CC_ARGS := -DBT_LOG_DEF_SRCLOC=BT_LOG_SRCLOC_LONG
- *
- * And when necessary to override it with BT_LOG_SRCLOC in .c/.cpp/.m files
- * before including bt_log.h:
- *
- * #define BT_LOG_SRCLOC BT_LOG_SRCLOC_NONE
- * #include <babeltrace/logging-internal.h>
- *
- * If both BT_LOG_DEF_SRCLOC and BT_LOG_SRCLOC are undefined, then
- * BT_LOG_SRCLOC_NONE will be used for release builds (NDEBUG is defined) and
- * BT_LOG_SRCLOC_LONG otherwise (NDEBUG is not defined).
- */
-#if defined(BT_LOG_SRCLOC)
- #define _BT_LOG_SRCLOC BT_LOG_SRCLOC
-#elif defined(BT_LOG_DEF_SRCLOC)
- #define _BT_LOG_SRCLOC BT_LOG_DEF_SRCLOC
-#else
- #ifdef NDEBUG
- #define _BT_LOG_SRCLOC BT_LOG_SRCLOC_NONE
- #else
- #define _BT_LOG_SRCLOC BT_LOG_SRCLOC_LONG
- #endif
-#endif
-#if BT_LOG_SRCLOC_LONG == _BT_LOG_SRCLOC
- #define _BT_LOG_SRCLOC_FUNCTION _BT_LOG_FUNCTION
-#else
- #define _BT_LOG_SRCLOC_FUNCTION 0
-#endif
-
-/* Censoring provides conditional logging of secret information, also known as
- * Personally Identifiable Information (PII) or Sensitive Personal Information
- * (SPI). Censoring can be either enabled (BT_LOG_CENSORED) or disabled
- * (BT_LOG_UNCENSORED). When censoring is enabled, log statements marked as
- * "secrets" will be ignored and will have zero overhead (arguments also will
- * not be evaluated).
- */
-#define BT_LOG_CENSORED 1
-#define BT_LOG_UNCENSORED 0
-
-/* Censoring is configured per compilation module (.c/.cpp/.m file) by defining
- * BT_LOG_DEF_CENSORING or BT_LOG_CENSORING. BT_LOG_CENSORING has higer priority
- * and when defined overrides value provided by BT_LOG_DEF_CENSORING.
- *
- * Common practice is to define default censoring with BT_LOG_DEF_CENSORING in
- * build script (e.g. Makefile, CMakeLists.txt, gyp, etc.) for the entire
- * project or target:
- *
- * CC_ARGS := -DBT_LOG_DEF_CENSORING=BT_LOG_CENSORED
- *
- * And when necessary to override it with BT_LOG_CENSORING in .c/.cpp/.m files
- * before including bt_log.h (consider doing it only for debug purposes and be
- * very careful not to push such temporary changes to source control):
- *
- * #define BT_LOG_CENSORING BT_LOG_UNCENSORED
- * #include <babeltrace/logging-internal.h>
- *
- * If both BT_LOG_DEF_CENSORING and BT_LOG_CENSORING are undefined, then
- * BT_LOG_CENSORED will be used for release builds (NDEBUG is defined) and
- * BT_LOG_UNCENSORED otherwise (NDEBUG is not defined).
- */
-#if defined(BT_LOG_CENSORING)
- #define _BT_LOG_CENSORING BT_LOG_CENSORING
-#elif defined(BT_LOG_DEF_CENSORING)
- #define _BT_LOG_CENSORING BT_LOG_DEF_CENSORING
-#else
- #ifdef NDEBUG
- #define _BT_LOG_CENSORING BT_LOG_CENSORED
- #else
- #define _BT_LOG_CENSORING BT_LOG_UNCENSORED
- #endif
-#endif
-
-/* Check censoring at compile time. Evaluates to true when censoring is disabled
- * (i.e. when secrets will be logged). For example:
- *
- * #if BT_LOG_SECRETS
- * char ssn[16];
- * getSocialSecurityNumber(ssn);
- * BT_LOGI("Customer ssn: %s", ssn);
- * #endif
- *
- * See BT_LOG_SECRET() macro for a more convenient way of guarding single log
- * statement.
- */
-#define BT_LOG_SECRETS (BT_LOG_UNCENSORED == _BT_LOG_CENSORING)
-
-/* Static (compile-time) initialization support allows to configure logging
- * before entering main() function. This mostly useful in C++ where functions
- * and methods could be called during initialization of global objects. Those
- * functions and methods could record log messages too and for that reason
- * static initialization of logging configuration is customizable.
- *
- * Macros below allow to specify values to use for initial configuration:
- * - BT_LOG_EXTERN_TAG_PREFIX - tag prefix (default: none)
- * - BT_LOG_EXTERN_GLOBAL_FORMAT - global format options (default: see
- * BT_LOG_MEM_WIDTH in bt_log.c)
- * - BT_LOG_EXTERN_GLOBAL_OUTPUT - global output facility (default: stderr or
- * platform specific, see BT_LOG_USE_XXX macros in bt_log.c)
- * - BT_LOG_EXTERN_GLOBAL_OUTPUT_LEVEL - global output log level (default: 0 -
- * all levals are "turned on")
- *
- * For example, in log_config.c:
- *
- * #include <babeltrace/logging-internal.h>
- * BT_LOG_DEFINE_TAG_PREFIX = "MyApp";
- * BT_LOG_DEFINE_GLOBAL_FORMAT = {CUSTOM_MEM_WIDTH};
- * BT_LOG_DEFINE_GLOBAL_OUTPUT = {BT_LOG_PUT_STD, custom_output_callback, 0};
- * BT_LOG_DEFINE_GLOBAL_OUTPUT_LEVEL = BT_LOG_INFO;
- *
- * However, to use any of those macros bt_log library must be compiled with
- * following macros defined:
- * - to use BT_LOG_DEFINE_TAG_PREFIX define BT_LOG_EXTERN_TAG_PREFIX
- * - to use BT_LOG_DEFINE_GLOBAL_FORMAT define BT_LOG_EXTERN_GLOBAL_FORMAT
- * - to use BT_LOG_DEFINE_GLOBAL_OUTPUT define BT_LOG_EXTERN_GLOBAL_OUTPUT
- * - to use BT_LOG_DEFINE_GLOBAL_OUTPUT_LEVEL define
- * BT_LOG_EXTERN_GLOBAL_OUTPUT_LEVEL
- *
- * When bt_log library compiled with one of BT_LOG_EXTERN_XXX macros defined,
- * corresponding BT_LOG_DEFINE_XXX macro MUST be used exactly once somewhere.
- * Otherwise build will fail with link error (undefined symbol).
- */
-#define BT_LOG_DEFINE_TAG_PREFIX BT_HIDDEN const char *_bt_log_tag_prefix
-#define BT_LOG_DEFINE_GLOBAL_FORMAT BT_HIDDEN bt_log_format _bt_log_global_format
-#define BT_LOG_DEFINE_GLOBAL_OUTPUT BT_HIDDEN bt_log_output _bt_log_global_output
-#define BT_LOG_DEFINE_GLOBAL_OUTPUT_LEVEL BT_HIDDEN int _bt_log_global_output_lvl
-
-/* Pointer to global format options. Direct modification is not allowed. Use
- * bt_log_set_mem_width() instead. Could be used to initialize bt_log_spec
- * structure:
- *
- * const bt_log_output g_output = {BT_LOG_PUT_STD, output_callback, 0};
- * const bt_log_spec g_spec = {BT_LOG_GLOBAL_FORMAT, &g_output};
- * BT_LOGI_AUX(&g_spec, "Hello");
- */
-#define BT_LOG_GLOBAL_FORMAT ((const bt_log_format *)&_bt_log_global_format)
-
-/* Pointer to global output variable. Direct modification is not allowed. Use
- * bt_log_set_output_v() or bt_log_set_output_p() instead. Could be used to
- * initialize bt_log_spec structure:
- *
- * const bt_log_format g_format = {40};
- * const bt_log_spec g_spec = {g_format, BT_LOG_GLOBAL_OUTPUT};
- * BT_LOGI_AUX(&g_spec, "Hello");
- */
-#define BT_LOG_GLOBAL_OUTPUT ((const bt_log_output *)&_bt_log_global_output)
-
-/* When defined, all library symbols produced by linker will be prefixed with
- * provided value. That allows to use bt_log library privately in another
- * libraries without exposing bt_log symbols in their original form (to avoid
- * possible conflicts with other libraries / components that also could use
- * bt_log for logging). Value must be without quotes, for example:
- *
- * CC_ARGS := -DBT_LOG_LIBRARY_PREFIX=my_lib_
- *
- * Note, that in this mode BT_LOG_LIBRARY_PREFIX must be defined when building
- * bt_log library AND it also must be defined to the same value when building
- * a library that uses it. For example, consider fictional KittyHttp library
- * that wants to use bt_log for logging. First approach that could be taken is
- * to add bt_log.h and bt_log.c to the KittyHttp's source code tree directly.
- * In that case it will be enough just to define BT_LOG_LIBRARY_PREFIX in
- * KittyHttp's build script:
- *
- * // KittyHttp/CMakeLists.txt
- * target_compile_definitions(KittyHttp PRIVATE
- * "BT_LOG_LIBRARY_PREFIX=KittyHttp_")
- *
- * If KittyHttp doesn't want to include bt_log source code in its source tree
- * and wants to build bt_log as a separate library than bt_log library must be
- * built with BT_LOG_LIBRARY_PREFIX defined to KittyHttp_ AND KittyHttp library
- * itself also needs to define BT_LOG_LIBRARY_PREFIX to KittyHttp_. It can do
- * so either in its build script, as in example above, or by providing a
- * wrapper header that KittyHttp library will need to use instead of bt_log.h:
- *
- * // KittyHttpLogging.h
- * #define BT_LOG_LIBRARY_PREFIX KittyHttp_
- * #include <babeltrace/logging-internal.h>
- *
- * Regardless of the method chosen, the end result is that bt_log symbols will
- * be prefixed with "KittyHttp_", so if a user of KittyHttp (say DogeBrowser)
- * also uses bt_log for logging, they will not interferer with each other. Both
- * will have their own log level, output facility, format options etc.
- */
-#ifdef BT_LOG_LIBRARY_PREFIX
- #define _BT_LOG_DECOR__(prefix, name) prefix ## name
- #define _BT_LOG_DECOR_(prefix, name) _BT_LOG_DECOR__(prefix, name)
- #define _BT_LOG_DECOR(name) _BT_LOG_DECOR_(BT_LOG_LIBRARY_PREFIX, name)
-
- #define bt_log_set_tag_prefix _BT_LOG_DECOR(bt_log_set_tag_prefix)
- #define bt_log_set_mem_width _BT_LOG_DECOR(bt_log_set_mem_width)
- #define bt_log_set_output_level _BT_LOG_DECOR(bt_log_set_output_level)
- #define bt_log_set_output_v _BT_LOG_DECOR(bt_log_set_output_v)
- #define bt_log_set_output_p _BT_LOG_DECOR(bt_log_set_output_p)
- #define bt_log_out_stderr_callback _BT_LOG_DECOR(bt_log_out_stderr_callback)
- #define _bt_log_tag_prefix _BT_LOG_DECOR(_bt_log_tag_prefix)
- #define _bt_log_global_format _BT_LOG_DECOR(_bt_log_global_format)
- #define _bt_log_global_output _BT_LOG_DECOR(_bt_log_global_output)
- #define _bt_log_global_output_lvl _BT_LOG_DECOR(_bt_log_global_output_lvl)
- #define _bt_log_write_d _BT_LOG_DECOR(_bt_log_write_d)
- #define _bt_log_write_aux_d _BT_LOG_DECOR(_bt_log_write_aux_d)
- #define _bt_log_write _BT_LOG_DECOR(_bt_log_write)
- #define _bt_log_write_aux _BT_LOG_DECOR(_bt_log_write_aux)
- #define _bt_log_write_mem_d _BT_LOG_DECOR(_bt_log_write_mem_d)
- #define _bt_log_write_mem_aux_d _BT_LOG_DECOR(_bt_log_write_mem_aux_d)
- #define _bt_log_write_mem _BT_LOG_DECOR(_bt_log_write_mem)
- #define _bt_log_write_mem_aux _BT_LOG_DECOR(_bt_log_write_mem_aux)
- #define _bt_log_stderr_spec _BT_LOG_DECOR(_bt_log_stderr_spec)
-#endif
-
-#if defined(__printflike)
- #define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
- __printflike(str_index, first_to_check)
-#elif defined(__MINGW_PRINTF_FORMAT)
- #define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
- __attribute__((format(__MINGW_PRINTF_FORMAT, str_index, first_to_check)))
-#elif defined(__GNUC__)
- #define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
- __attribute__((format(__printf__, str_index, first_to_check)))
-#else
- #define _BT_LOG_PRINTFLIKE(str_index, first_to_check)
-#endif
-
-#if (defined(_WIN32) || defined(_WIN64)) && !defined(__GNUC__)
- #define _BT_LOG_FUNCTION __FUNCTION__
-#else
- #define _BT_LOG_FUNCTION __func__
-#endif
-
-#if defined(_MSC_VER) && !defined(__INTEL_COMPILER)
- #define _BT_LOG_INLINE __inline
- #define _BT_LOG_IF(cond) \
- __pragma(warning(push)) \
- __pragma(warning(disable:4127)) \
- if(cond) \
- __pragma(warning(pop))
- #define _BT_LOG_WHILE(cond) \
- __pragma(warning(push)) \
- __pragma(warning(disable:4127)) \
- while(cond) \
- __pragma(warning(pop))
-#else
- #define _BT_LOG_INLINE inline
- #define _BT_LOG_IF(cond) if(cond)
- #define _BT_LOG_WHILE(cond) while(cond)
-#endif
-#define _BT_LOG_NEVER _BT_LOG_IF(0)
-#define _BT_LOG_ONCE _BT_LOG_WHILE(0)
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Set tag prefix. Prefix will be separated from the tag with dot ('.').
- * Use 0 or empty string to disable (default). Common use is to set it to
- * the process (or build target) name (e.g. to separate client and server
- * processes). Function will NOT copy provided prefix string, but will store the
- * pointer. Hence specified prefix string must remain valid. See
- * BT_LOG_DEFINE_TAG_PREFIX for a way to set it before entering main() function.
- * See BT_LOG_TAG for more information about tag and tag prefix.
- */
-void bt_log_set_tag_prefix(const char *const prefix);
-
-/* Set number of bytes per log line in memory (ASCII-HEX) output. Example:
- *
- * I hello.MAIN 4c6f72656d20697073756d20646f6c6f Lorem ipsum dolo
- * |<- w bytes ->| |<- w chars ->|
- *
- * See BT_LOGF_MEM and BT_LOGF_MEM_AUX for more details.
- */
-void bt_log_set_mem_width(const unsigned w);
-
-/* Set "output" log level. See BT_LOG_LEVEL and BT_LOG_OUTPUT_LEVEL for more
- * info about log levels.
- */
-void bt_log_set_output_level(const int lvl);
-
-/* Put mask is a set of flags that define what fields will be added to each
- * log message. Default value is BT_LOG_PUT_STD and other flags could be used to
- * alter its behavior. See bt_log_set_output_v() for more details.
- *
- * Note about BT_LOG_PUT_SRC: it will be added only in debug builds (NDEBUG is
- * not defined).
- */
-enum
-{
- BT_LOG_PUT_CTX = 1 << 0, /* context (time, pid, tid, log level) */
- BT_LOG_PUT_TAG = 1 << 1, /* tag (including tag prefix) */
- BT_LOG_PUT_SRC = 1 << 2, /* source location (file, line, function) */
- BT_LOG_PUT_MSG = 1 << 3, /* message text (formatted string) */
- BT_LOG_PUT_STD = 0xffff, /* everything (default) */
-};
-
-typedef struct bt_log_message
-{
- int lvl; /* Log level of the message */
- const char *tag; /* Associated tag (without tag prefix) */
- char *buf; /* Buffer start */
- char *e; /* Buffer end (last position where EOL with 0 could be written) */
- char *p; /* Buffer content end (append position) */
- char *tag_b; /* Prefixed tag start */
- char *tag_e; /* Prefixed tag end (if != tag_b, points to msg separator) */
- char *msg_b; /* Message start (expanded format string) */
-}
-bt_log_message;
-
-/* Type of output callback function. It will be called for each log line allowed
- * by both "current" and "output" log levels ("enabled" and "turned on").
- * Callback function is allowed to modify content of the buffers pointed by the
- * msg, but it's not allowed to modify any of msg fields. Buffer pointed by msg
- * is UTF-8 encoded (no BOM mark).
- */
-typedef void (*bt_log_output_cb)(const bt_log_message *msg, void *arg);
-
-/* Format options. For more details see bt_log_set_mem_width().
- */
-typedef struct bt_log_format
-{
- unsigned mem_width; /* Bytes per line in memory (ASCII-HEX) dump */
-}
-bt_log_format;
-
-/* Output facility.
- */
-typedef struct bt_log_output
-{
- unsigned mask; /* What to put into log line buffer (see BT_LOG_PUT_XXX) */
- void *arg; /* User provided output callback argument */
- bt_log_output_cb callback; /* Output callback function */
-}
-bt_log_output;
-
-/* Set output callback function.
- *
- * Mask allows to control what information will be added to the log line buffer
- * before callback function is invoked. Default mask value is BT_LOG_PUT_STD.
- */
-void bt_log_set_output_v(const unsigned mask, void *const arg,
- const bt_log_output_cb callback);
-static _BT_LOG_INLINE void bt_log_set_output_p(const bt_log_output *const output)
-{
- bt_log_set_output_v(output->mask, output->arg, output->callback);
-}
-
-/* Used with _AUX macros and allows to override global format and output
- * facility. Use BT_LOG_GLOBAL_FORMAT and BT_LOG_GLOBAL_OUTPUT for values from
- * global configuration. Example:
- *
- * static const bt_log_output module_output = {
- * BT_LOG_PUT_STD, 0, custom_output_callback
- * };
- * static const bt_log_spec module_spec = {
- * BT_LOG_GLOBAL_FORMAT, &module_output
- * };
- * BT_LOGI_AUX(&module_spec, "Position: %ix%i", x, y);
- *
- * See BT_LOGF_AUX and BT_LOGF_MEM_AUX for details.
- */
-typedef struct bt_log_spec
-{
- const bt_log_format *format;
- const bt_log_output *output;
-}
-bt_log_spec;
-
-#ifdef __cplusplus
-}
-#endif
-
-/* Execute log statement if condition is true. Example:
- *
- * BT_LOG_IF(1 < 2, BT_LOGI("Log this"));
- * BT_LOG_IF(1 > 2, BT_LOGI("Don't log this"));
- *
- * Keep in mind though, that if condition can't be evaluated at compile time,
- * then it will be evaluated at run time. This will increase exectuable size
- * and can have noticeable performance overhead. Try to limit conditions to
- * expressions that can be evaluated at compile time.
- */
-#define BT_LOG_IF(cond, f) do { _BT_LOG_IF((cond)) { f; } } _BT_LOG_ONCE
-
-/* Mark log statement as "secret". Log statements that are marked as secrets
- * will NOT be executed when censoring is enabled (see BT_LOG_CENSORED).
- * Example:
- *
- * BT_LOG_SECRET(BT_LOGI("Credit card: %s", credit_card));
- * BT_LOG_SECRET(BT_LOGD_MEM(cipher, cipher_sz, "Cipher bytes:"));
- */
-#define BT_LOG_SECRET(f) BT_LOG_IF(BT_LOG_SECRETS, f)
-
-/* Check "current" log level at compile time (ignoring "output" log level).
- * Evaluates to true when specified log level is enabled. For example:
- *
- * #if BT_LOG_ENABLED_DEBUG
- * const char *const g_enum_strings[] = {
- * "enum_value_0", "enum_value_1", "enum_value_2"
- * };
- * #endif
- * // ...
- * #if BT_LOG_ENABLED_DEBUG
- * BT_LOGD("enum value: %s", g_enum_strings[v]);
- * #endif
- *
- * See BT_LOG_LEVEL for details.
- */
-#define BT_LOG_ENABLED(lvl) ((lvl) >= _BT_LOG_LEVEL)
-#define BT_LOG_ENABLED_VERBOSE BT_LOG_ENABLED(BT_LOG_VERBOSE)
-#define BT_LOG_ENABLED_DEBUG BT_LOG_ENABLED(BT_LOG_DEBUG)
-#define BT_LOG_ENABLED_INFO BT_LOG_ENABLED(BT_LOG_INFO)
-#define BT_LOG_ENABLED_WARN BT_LOG_ENABLED(BT_LOG_WARN)
-#define BT_LOG_ENABLED_ERROR BT_LOG_ENABLED(BT_LOG_ERROR)
-#define BT_LOG_ENABLED_FATAL BT_LOG_ENABLED(BT_LOG_FATAL)
-
-/* Check "output" log level at run time (taking into account "current" log
- * level as well). Evaluates to true when specified log level is turned on AND
- * enabled. For example:
- *
- * if (BT_LOG_ON_DEBUG)
- * {
- * char hash[65];
- * sha256(data_ptr, data_sz, hash);
- * BT_LOGD("data: len=%u, sha256=%s", data_sz, hash);
- * }
- *
- * See BT_LOG_OUTPUT_LEVEL for details.
- */
-#define BT_LOG_ON(lvl) \
- (BT_LOG_ENABLED((lvl)) && (lvl) >= _BT_LOG_OUTPUT_LEVEL)
-#define BT_LOG_ON_VERBOSE BT_LOG_ON(BT_LOG_VERBOSE)
-#define BT_LOG_ON_DEBUG BT_LOG_ON(BT_LOG_DEBUG)
-#define BT_LOG_ON_INFO BT_LOG_ON(BT_LOG_INFO)
-#define BT_LOG_ON_WARN BT_LOG_ON(BT_LOG_WARN)
-#define BT_LOG_ON_ERROR BT_LOG_ON(BT_LOG_ERROR)
-#define BT_LOG_ON_FATAL BT_LOG_ON(BT_LOG_FATAL)
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern const char *_bt_log_tag_prefix;
-extern bt_log_format _bt_log_global_format;
-extern bt_log_output _bt_log_global_output;
-extern int _bt_log_global_output_lvl;
-extern const bt_log_spec _bt_log_stderr_spec;
-
-BT_HIDDEN
-void _bt_log_write_d(
- const char *const func, const char *const file, const unsigned line,
- const int lvl, const char *const tag,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(6, 7);
-
-BT_HIDDEN
-void _bt_log_write_aux_d(
- const char *const func, const char *const file, const unsigned line,
- const bt_log_spec *const log, const int lvl, const char *const tag,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(7, 8);
-
-BT_HIDDEN
-void _bt_log_write(
- const int lvl, const char *const tag,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(3, 4);
-
-BT_HIDDEN
-void _bt_log_write_aux(
- const bt_log_spec *const log, const int lvl, const char *const tag,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(4, 5);
-
-BT_HIDDEN
-void _bt_log_write_mem_d(
- const char *const func, const char *const file, const unsigned line,
- const int lvl, const char *const tag,
- const void *const d, const unsigned d_sz,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(8, 9);
-
-BT_HIDDEN
-void _bt_log_write_mem_aux_d(
- const char *const func, const char *const file, const unsigned line,
- const bt_log_spec *const log, const int lvl, const char *const tag,
- const void *const d, const unsigned d_sz,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(9, 10);
-
-BT_HIDDEN
-void _bt_log_write_mem(
- const int lvl, const char *const tag,
- const void *const d, const unsigned d_sz,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(5, 6);
-
-BT_HIDDEN
-void _bt_log_write_mem_aux(
- const bt_log_spec *const log, const int lvl, const char *const tag,
- const void *const d, const unsigned d_sz,
- const char *const fmt, ...) _BT_LOG_PRINTFLIKE(6, 7);
-
-#ifdef __cplusplus
-}
-#endif
-
-/* Message logging macros:
- * - BT_LOGV("format string", args, ...)
- * - BT_LOGD("format string", args, ...)
- * - BT_LOGI("format string", args, ...)
- * - BT_LOGW("format string", args, ...)
- * - BT_LOGE("format string", args, ...)
- * - BT_LOGF("format string", args, ...)
- *
- * Message and error string (errno) logging macros:
- * - BT_LOGV_ERRNO("initial message", "format string", args, ...)
- * - BT_LOGD_ERRNO("initial message", "format string", args, ...)
- * - BT_LOGI_ERRNO("initial message", "format string", args, ...)
- * - BT_LOGW_ERRNO("initial message", "format string", args, ...)
- * - BT_LOGE_ERRNO("initial message", "format string", args, ...)
- * - BT_LOGF_ERRNO("initial message", "format string", args, ...)
- *
- * Memory logging macros:
- * - BT_LOGV_MEM(data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGD_MEM(data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGI_MEM(data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGW_MEM(data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGE_MEM(data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGF_MEM(data_ptr, data_sz, "format string", args, ...)
- *
- * Auxiliary logging macros:
- * - BT_LOGV_AUX(&log_instance, "format string", args, ...)
- * - BT_LOGD_AUX(&log_instance, "format string", args, ...)
- * - BT_LOGI_AUX(&log_instance, "format string", args, ...)
- * - BT_LOGW_AUX(&log_instance, "format string", args, ...)
- * - BT_LOGE_AUX(&log_instance, "format string", args, ...)
- * - BT_LOGF_AUX(&log_instance, "format string", args, ...)
- *
- * Auxiliary memory logging macros:
- * - BT_LOGV_MEM_AUX(&log_instance, data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGD_MEM_AUX(&log_instance, data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGI_MEM_AUX(&log_instance, data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGW_MEM_AUX(&log_instance, data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGE_MEM_AUX(&log_instance, data_ptr, data_sz, "format string", args, ...)
- * - BT_LOGF_MEM_AUX(&log_instance, data_ptr, data_sz, "format string", args, ...)
- *
- * Preformatted string logging macros:
- * - BT_LOGV_STR("preformatted string");
- * - BT_LOGD_STR("preformatted string");
- * - BT_LOGI_STR("preformatted string");
- * - BT_LOGW_STR("preformatted string");
- * - BT_LOGE_STR("preformatted string");
- * - BT_LOGF_STR("preformatted string");
- *
- * Explicit log level and tag macros:
- * - BT_LOG_WRITE(level, tag, "format string", args, ...)
- * - BT_LOG_WRITE_MEM(level, tag, data_ptr, data_sz, "format string", args, ...)
- * - BT_LOG_WRITE_AUX(&log_instance, level, tag, "format string", args, ...)
- * - BT_LOG_WRITE_MEM_AUX(&log_instance, level, tag, data_ptr, data_sz,
- * "format string", args, ...)
- *
- * Format string follows printf() conventions. Both data_ptr and data_sz could
- * be 0. Tag can be 0 as well. Most compilers will verify that type of arguments
- * match format specifiers in format string.
- *
- * Library assuming UTF-8 encoding for all strings (char *), including format
- * string itself.
- */
-#if BT_LOG_SRCLOC_NONE == _BT_LOG_SRCLOC
- #define BT_LOG_WRITE(lvl, tag, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write(lvl, tag, __VA_ARGS__); \
- } _BT_LOG_ONCE
- #define BT_LOG_WRITE_MEM(lvl, tag, d, d_sz, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_mem(lvl, tag, d, d_sz, __VA_ARGS__); \
- } _BT_LOG_ONCE
- #define BT_LOG_WRITE_AUX(log, lvl, tag, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_aux(log, lvl, tag, __VA_ARGS__); \
- } _BT_LOG_ONCE
- #define BT_LOG_WRITE_MEM_AUX(log, lvl, tag, d, d_sz, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_mem_aux(log, lvl, tag, d, d_sz, __VA_ARGS__); \
- } _BT_LOG_ONCE
-#else
- #define BT_LOG_WRITE(lvl, tag, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_d(_BT_LOG_SRCLOC_FUNCTION, __FILE__, __LINE__, \
- lvl, tag, __VA_ARGS__); \
- } _BT_LOG_ONCE
- #define BT_LOG_WRITE_MEM(lvl, tag, d, d_sz, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_mem_d(_BT_LOG_SRCLOC_FUNCTION, __FILE__, __LINE__, \
- lvl, tag, d, d_sz, __VA_ARGS__); \
- } _BT_LOG_ONCE
- #define BT_LOG_WRITE_AUX(log, lvl, tag, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_aux_d(_BT_LOG_SRCLOC_FUNCTION, __FILE__, __LINE__, \
- log, lvl, tag, __VA_ARGS__); \
- } _BT_LOG_ONCE
- #define BT_LOG_WRITE_MEM_AUX(log, lvl, tag, d, d_sz, ...) \
- do { \
- if (BT_LOG_ON(lvl)) \
- _bt_log_write_mem_aux_d(_BT_LOG_SRCLOC_FUNCTION, __FILE__, __LINE__, \
- log, lvl, tag, d, d_sz, __VA_ARGS__); \
- } _BT_LOG_ONCE
-#endif
-
-#define BT_LOG_WRITE_ERRNO(lvl, tag, _msg, _fmt, args...) \
- do { \
- const char *error_str; \
- error_str = g_strerror(errno); \
- BT_LOG_WRITE(lvl, tag, _msg ": %s" _fmt, error_str, ## args); \
- } _BT_LOG_ONCE
-
-static _BT_LOG_INLINE void _bt_log_unused(const int dummy, ...) {(void)dummy;}
-
-#define _BT_LOG_UNUSED(...) \
- do { _BT_LOG_NEVER _bt_log_unused(0, __VA_ARGS__); } _BT_LOG_ONCE
-
-#if BT_LOG_ENABLED_VERBOSE
- #define BT_LOGV(...) \
- BT_LOG_WRITE(BT_LOG_VERBOSE, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGV_ERRNO(...) \
- BT_LOG_WRITE_ERRNO(BT_LOG_VERBOSE, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGV_AUX(log, ...) \
- BT_LOG_WRITE_AUX(log, BT_LOG_VERBOSE, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGV_MEM(d, d_sz, ...) \
- BT_LOG_WRITE_MEM(BT_LOG_VERBOSE, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
- #define BT_LOGV_MEM_AUX(log, d, d_sz, ...) \
- BT_LOG_WRITE_MEM(log, BT_LOG_VERBOSE, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
-#else
- #define BT_LOGV(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGV_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGV_MEM(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGV_MEM_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
-#endif
-
-#if BT_LOG_ENABLED_DEBUG
- #define BT_LOGD(...) \
- BT_LOG_WRITE(BT_LOG_DEBUG, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGD_ERRNO(...) \
- BT_LOG_WRITE_ERRNO(BT_LOG_DEBUG, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGD_AUX(log, ...) \
- BT_LOG_WRITE_AUX(log, BT_LOG_DEBUG, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGD_MEM(d, d_sz, ...) \
- BT_LOG_WRITE_MEM(BT_LOG_DEBUG, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
- #define BT_LOGD_MEM_AUX(log, d, d_sz, ...) \
- BT_LOG_WRITE_MEM_AUX(log, BT_LOG_DEBUG, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
-#else
- #define BT_LOGD(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGD_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGD_MEM(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGD_MEM_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
-#endif
-
-#if BT_LOG_ENABLED_INFO
- #define BT_LOGI(...) \
- BT_LOG_WRITE(BT_LOG_INFO, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGI_ERRNO(...) \
- BT_LOG_WRITE_ERRNO(BT_LOG_INFO, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGI_AUX(log, ...) \
- BT_LOG_WRITE_AUX(log, BT_LOG_INFO, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGI_MEM(d, d_sz, ...) \
- BT_LOG_WRITE_MEM(BT_LOG_INFO, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
- #define BT_LOGI_MEM_AUX(log, d, d_sz, ...) \
- BT_LOG_WRITE_MEM_AUX(log, BT_LOG_INFO, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
-#else
- #define BT_LOGI(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGI_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGI_MEM(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGI_MEM_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
-#endif
-
-#if BT_LOG_ENABLED_WARN
- #define BT_LOGW(...) \
- BT_LOG_WRITE(BT_LOG_WARN, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGW_ERRNO(...) \
- BT_LOG_WRITE_ERRNO(BT_LOG_WARN, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGW_AUX(log, ...) \
- BT_LOG_WRITE_AUX(log, BT_LOG_WARN, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGW_MEM(d, d_sz, ...) \
- BT_LOG_WRITE_MEM(BT_LOG_WARN, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
- #define BT_LOGW_MEM_AUX(log, d, d_sz, ...) \
- BT_LOG_WRITE_MEM_AUX(log, BT_LOG_WARN, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
-#else
- #define BT_LOGW(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGW_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGW_MEM(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGW_MEM_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
-#endif
-
-#if BT_LOG_ENABLED_ERROR
- #define BT_LOGE(...) \
- BT_LOG_WRITE(BT_LOG_ERROR, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGE_ERRNO(...) \
- BT_LOG_WRITE_ERRNO(BT_LOG_ERROR, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGE_AUX(log, ...) \
- BT_LOG_WRITE_AUX(log, BT_LOG_ERROR, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGE_MEM(d, d_sz, ...) \
- BT_LOG_WRITE_MEM(BT_LOG_ERROR, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
- #define BT_LOGE_MEM_AUX(log, d, d_sz, ...) \
- BT_LOG_WRITE_MEM_AUX(log, BT_LOG_ERROR, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
-#else
- #define BT_LOGE(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGE_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGE_MEM(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGE_MEM_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
-#endif
-
-#if BT_LOG_ENABLED_FATAL
- #define BT_LOGF(...) \
- BT_LOG_WRITE(BT_LOG_FATAL, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGF_ERRNO(...) \
- BT_LOG_WRITE_ERRNO(BT_LOG_FATAL, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGF_AUX(log, ...) \
- BT_LOG_WRITE_AUX(log, BT_LOG_FATAL, _BT_LOG_TAG, __VA_ARGS__)
- #define BT_LOGF_MEM(d, d_sz, ...) \
- BT_LOG_WRITE_MEM(BT_LOG_FATAL, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
- #define BT_LOGF_MEM_AUX(log, d, d_sz, ...) \
- BT_LOG_WRITE_MEM_AUX(log, BT_LOG_FATAL, _BT_LOG_TAG, d, d_sz, __VA_ARGS__)
-#else
- #define BT_LOGF(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGF_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGF_MEM(...) _BT_LOG_UNUSED(__VA_ARGS__)
- #define BT_LOGF_MEM_AUX(...) _BT_LOG_UNUSED(__VA_ARGS__)
-#endif
-
-#define BT_LOGV_STR(s) BT_LOGV("%s", (s))
-#define BT_LOGD_STR(s) BT_LOGD("%s", (s))
-#define BT_LOGI_STR(s) BT_LOGI("%s", (s))
-#define BT_LOGW_STR(s) BT_LOGW("%s", (s))
-#define BT_LOGE_STR(s) BT_LOGE("%s", (s))
-#define BT_LOGF_STR(s) BT_LOGF("%s", (s))
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* Output to standard error stream. Library uses it by default, though in few
- * cases it could be necessary to specify it explicitly. For example, when
- * bt_log library is compiled with BT_LOG_EXTERN_GLOBAL_OUTPUT, application must
- * define and initialize global output variable:
- *
- * BT_LOG_DEFINE_GLOBAL_OUTPUT = {BT_LOG_OUT_STDERR};
- *
- * Another example is when using custom output, stderr could be used as a
- * fallback when custom output facility failed to initialize:
- *
- * bt_log_set_output_v(BT_LOG_OUT_STDERR);
- */
-enum { BT_LOG_OUT_STDERR_MASK = BT_LOG_PUT_STD };
-
-BT_HIDDEN
-void bt_log_out_stderr_callback(const bt_log_message *const msg, void *arg);
-#define BT_LOG_OUT_STDERR BT_LOG_OUT_STDERR_MASK, 0, bt_log_out_stderr_callback
-
-/* Predefined spec for stderr. Uses global format options (BT_LOG_GLOBAL_FORMAT)
- * and BT_LOG_OUT_STDERR. Could be used to force output to stderr for a
- * particular message. Example:
- *
- * f = fopen("foo.log", "w");
- * if (!f)
- * BT_LOGE_AUX(BT_LOG_STDERR, "Failed to open log file");
- */
-#define BT_LOG_STDERR (&_bt_log_stderr_spec)
-
-static inline
-int bt_log_get_level_from_env(const char *var)
-{
- const char *varval = getenv(var);
- int level = BT_LOG_NONE;
-
- if (!varval) {
- goto end;
- }
-
- if (strcmp(varval, "VERBOSE") == 0 ||
- strcmp(varval, "V") == 0) {
- level = BT_LOG_VERBOSE;
- } else if (strcmp(varval, "DEBUG") == 0 ||
- strcmp(varval, "D") == 0) {
- level = BT_LOG_DEBUG;
- } else if (strcmp(varval, "INFO") == 0 ||
- strcmp(varval, "I") == 0) {
- level = BT_LOG_INFO;
- } else if (strcmp(varval, "WARN") == 0 ||
- strcmp(varval, "WARNING") == 0 ||
- strcmp(varval, "W") == 0) {
- level = BT_LOG_WARN;
- } else if (strcmp(varval, "ERROR") == 0 ||
- strcmp(varval, "E") == 0) {
- level = BT_LOG_ERROR;
- } else if (strcmp(varval, "FATAL") == 0 ||
- strcmp(varval, "F") == 0) {
- level = BT_LOG_FATAL;
- } else if (strcmp(varval, "NONE") == 0 ||
- strcmp(varval, "N") == 0) {
- level = BT_LOG_NONE;
- } else {
- /* Should we warn here? How? */
- }
-
-end:
- return level;
-}
-
-#define BT_LOG_LEVEL_EXTERN_SYMBOL(_level_sym) \
- extern int _level_sym
-
-#define BT_LOG_INIT_LOG_LEVEL(_level_sym, _env_var) \
- BT_HIDDEN int _level_sym = BT_LOG_NONE; \
- static \
- void __attribute__((constructor)) _bt_log_level_ctor(void) \
- { \
- _level_sym = bt_log_get_level_from_env(_env_var); \
- }
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* BABELTRACE_LOGGING_INTERNAL_H */
projects / babeltrace.git / blobdiff