Hakkari the Blood God

Features

• Elasticsearch sink - allows to send logging events directly to that storage.
• Scoped attributes holder - automatically adds specified attributes to the logger while in its scope.
• Logger adaptor - keeps some attributes until lives.
• Tracing framework - closely integrates with the logging system.
• Configuration parser can properly handle arrays.
• Logger frontends are now thread-aware.
• Streaming sink now allows to use custom std::stream.
• Logger object's internal state is now thread-safe.
• Added default severity and its mapping function.

Bug fixes

• Long and unsigned long values can now be used as attributes.
• Fixed misleading error message when failed to instantiate formatter.
• Fixed undefined behaviour in syslog sink.
• Some conditional memory jumps fixed.
• TCP write handler will now block until the message is completely sent.
• Fixed deadlock while invoking move assigning in logger wrapper.
• Forgotten configuration include added.
• Fixed mapping of debug severity to string.

Other

• Changed license to MIT.
• Relax local attributes transition to the record.
• Opening verbose logger's level type.
• Added macro variable to determine if the platform has c++11 random library.
• Start using implementation files (ipp), which allows to build library in the future.
• Verbose logger now can keep bound verbosity level and filter by it.
• No longer use boost::filesystem deprecated API.
• Let the compiler deduce swap function it needs to use.
• Migrated from boost::any to boost::variant configuration.
• More forwards added.
• Disable trace collecting by default.
• Use lightweight process id (LWP) on Linux instead of thread id.
• Logger can now provide its tracking state outside.
• Moving BLACKHOLE_HEADER_ONLY declaration to the config file.
• Disable tests and examples by default.
• Logger wrapper's constructor overload now accepts other const wrapper's reference instead of non-const one.
• Changed namespace of DECLARE_EVENT_KEYWORD.
• Using new benchmarking framework for regression tests.
• Default mapping from default severity to syslog one.
• Default warning severity mapping to string has been slightly changed.
• Change priority of attribute sets while merging.
• Scoped attributes constructor now has more strictly wrapper concept check.
• Added DECLARE_LOCAL_KEYWORD macro.

Examples

• Added example using Elasticsearch sink.

Testing

• Testing frameworks are now included as submodules.
• Continious integration is used more widely, tests and examples should now be built separately.
• Benchmark added to measure full logger event lifecycle.
• Open access to backend variables for mocking purpose.
• More tests for wrapper.
• Added datetime generator, string formatter and other benchmarks.
• Added tests to check priority of categorized attribute sets.