err Directory Reference

lib/err: Lowest-level error handling code.

More...

Files
file	backtrace.c [code]
	Functions to produce backtraces on bugs, crashes, or assertion failures.
file	backtrace.h [code]
	Header for backtrace.c.
file	torerr.c [code]
	Handling code for unrecoverable emergencies, at a lower level than the logging code.
file	torerr.h [code]
	Headers for torerr.c.
file	torerr_sys.c [code]
	Subsystem object for the error handling subsystem.
file	torerr_sys.h [code]
	Declare subsystem object for torerr.c.

Detailed Description

lib/err: Lowest-level error handling code.

This module is responsible for generating stack traces, handling raw assertion failures, and otherwise reporting problems that might not be safe to report via the regular logging module.

There are three kinds of users for the functions in this module:

• Code that needs a way to assert(), but which cannot use the regular tor_assert() macros in logging module.
• Code that needs signal-safe error reporting.
• Higher-level error handling code.