Crate lsofrs 

lsofrs — modern, high-performance lsof implementation in Rust

Maps the relationship between processes and the files they hold open. Supports regular files, directories, sockets, pipes, devices, and streams.

The binary entry points (lsofrs, lsf, and the lsof alias crate) are all one line over run(), so every shipped name runs identical code.

Re-exports

pub use run::gather_processes;

pub use run::run;

Modules

cli

Command-line argument parsing

config

config submodule. Persistent configuration — reads/writes ~/.lsofrs.conf (TOML)

csv_out

csv_out submodule. CSV export for pipelines/spreadsheets

delta

delta submodule. Delta highlighting — track FD changes between iterations

filter

filter submodule. Selection and filtering logic

follow

follow submodule. Follow mode — watch a single process’s FDs in real-time

json

json submodule. JSON output module

leak

leak submodule. FD leak detection — track monotonically increasing FD counts

linux

linux submodule. Linux process enumeration via /proc filesystem

monitor

monitor submodule. Live full-screen monitoring mode (like top)

net_map

net_map submodule. Network connection map grouped by remote host

output

output submodule. Columnar and field output formatting

pipe_chain

pipe_chain submodule. Trace pipe/socket pairs between processes, show IPC topology

ports

ports submodule. Show listening ports summary (like ss -tlnp)

resolve

resolve submodule. Host and service name resolution for socket names.

run

run submodule — the CLI dispatch shared by every binary name. Binary dispatch for the lsofrs / lsf / lsof entry points.

stale

stale submodule. Find FDs pointing to deleted files

stall

stall submodule. Per-FD socket backpressure classifier — poll each socket FD’s kernel send/recv buffer occupancy over successive samples and classify the direction of the stall.

strutil

strutil submodule. String helpers for display — avoid panicking on UTF-8 boundaries.

summary

summary submodule. Aggregate FD summary/statistics mode

theme

theme submodule. Color theme system for the ratatui TUI

top

top submodule. Top-N mode — live-sorted processes by FD count, auto-refreshing dashboard

tree

tree submodule. Process tree view — show parent/child relationships with FD counts

tui_app

tui_app submodule. Shared TUI application framework using ratatui

tui_tabs

tui_tabs submodule. Unified tabbed TUI — single --tui flag launches all modes as tabs

types

types submodule.

watch

watch submodule. Watch mode — monitor who opens/closes a specific file over time