liblockfile ☆

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Description:
Library providing functions to lock standard mailboxes

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: System utilities

Tags: library locking mailbox system-utility c-library

Install: brew install liblockfile

About:
Liblockfile is a shared library that provides a consistent API for creating and managing lock files in Unix-like systems. It is specifically designed to safely lock standard mailboxes and other system resources, preventing race conditions and data corruption. Its main value is offering a reliable, standardized mechanism for mail transport agents and other system utilities.

Key Features:

Provides a simple C API for file locking
Supports both blocking and non-blocking lock attempts
Handles lock file creation and cleanup automatically
Designed for use by mail-related system software

Use Cases:

Locking mailboxes in mail delivery agents (MDAs)
Preventing concurrent access to shared resource files in system scripts
Building mail transport agents (MTAs) that require safe locking

Alternatives:

flock(1) – A kernel-level locking utility, whereas liblockfile provides a library API for application integration.
dotlockfile – A command-line tool that is part of the liblockfile package, used for shell scripting.

Version History

Detected	Version	Rev	Change	Commit
Sep 14, 2025 3:00am		0	VERSION_BUMP	71eae84f
Dec 1, 2022 1:25pm		0	VERSION_BUMP	2368488e