log.h File Reference

Logging API for Anjay Lite. More...

#include <anj/init.h>
#include <stdio.h>
#include <anj/compat/log_impl_decls.h>
#include <anj/utils.h>

Go to the source code of this file.

Macros
#define	anj_log(Module, LogLevel, ...)
#define	ANJ_LOG_DISPOSABLE(Arg)   ANJ_LOG_DISPOSABLE_IMPL(Arg)

Detailed Description

Logging API for Anjay Lite.

Provides macros for emitting log messages with compile-time filtering and configurable backends.

Macro Definition Documentation

anj_log

#define anj_log	(		Module,
			LogLevel,
			...
	)

Value:

        ((void) (ANJ_LOG_IF_ALLOWED(Module, LogLevel, __VA_ARGS__), \
                 ANJ_LOG_COMPILE_TIME_CHECK(__VA_ARGS__)))

Logs a message.

Log statements are a subject to compile-time filtering. The level of this statement must be equal or higher than the configured level of the module, if defined, or the default level ( ANJ_LOG_LEVEL_DEFAULT ).

anj_log(my_module, L_DEBUG, "Hello %s, %d!", "world", 42);

Parameters

Module	Name of the module that generates the message, given as a raw token.
LogLevel	Log level, specified as a name of anj_log_level_t (other than L_MUTED) with the leading ANJ_LOG_LEVEL_ omitted.

ANJ_LOG_DISPOSABLE

#define ANJ_LOG_DISPOSABLE

(

Arg

)

ANJ_LOG_DISPOSABLE_IMPL(Arg)

Replaces a string constant with " " if ANJ_LOG_STRIP_CONSTANTS is enabled. This is useful for wrapping constant parts of log messages, to shorten them, and therefore reduce the size of the binary.

anj_log(my_module, L_DEBUG, ANJ_LOG_DISPOSABLE("The result is: ") "%d", 42);

Note

Provided string constants shall not contain any format specifiers.

Parameters

Arg	A string constant to be potentially replaced with " ".