procevent

package

v0.0.21 Latest Latest Go to latest Published: Nov 1, 2026 License: MIT Imports: 2 Imported by: 0

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Valid go.mod file
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Repository

github.com/polyspec/orm

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Documentation ¶

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Overview ¶

Package procevent waits for process exit and directory changes through OS notifications. There is no polling and no deadline: a wait ends when a notification arrives. darwin uses kqueue, and linux uses pidfd and inotify.

Index ¶

func Alive(pid int) bool
func WatchDir(path string) (func() error, func() error, error)
func WatchExit(pid int) (func() error, error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func Alive ¶

func Alive(pid int) bool

Alive reports whether the process with pid exists. A process of another user (EPERM) also counts as existing.

func WatchDir ¶

func WatchDir(path string) (func() error, func() error, error)

WatchDir registers changes of the directory (an entry is created, removed, or moved) with inotify, and returns a function that waits for the next change and a function that closes the watch and returns the error of closing it. Registration happens before the state is read, so no change between them is missed.

func WatchExit ¶

func WatchExit(pid int) (func() error, error)

WatchExit opens the pidfd of pid, and returns a function that waits with poll until the pidfd becomes readable, which happens when the process ends. A process that is already gone gives unix.ESRCH.

Types ¶

This section is empty.

Source Files ¶

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