LogThat

Description

LogThat provides an easy to use interface for adding diagnostic information to the CPU’s logger. It wraps B&R’s ArEventLog library so that creating a logbook takes one line in _INIT, and writing an entry takes one function call from anywhere in the application. Messages can contain runtime values through a printf-style format string backed by StringExt.

Use Cases

• Recording machine events, faults, and diagnostics in a user logbook, optionally one that survives a restart
• Adding structured, greppable log entries to a subsystem without writing ArEventLog boilerplate
• Tracing state machine transitions automatically with the logStateChange function block

Overview

• Usage

Creating loggers and writing entries

• Functions

Functions and function blocks

• Structures

Structures, enums, and constants