inotify

Documentation

Overview

Package inotify implements a wrapper for the Linux inotify system.

Example:

watcher, err := inotify.NewWatcher()
if err != nil {
    log.Fatal(err)
}
err = watcher.Watch("/tmp")
if err != nil {
    log.Fatal(err)
}
for {
    select {
    case ev := <-watcher.Event:
        log.Println("event:", ev)
    case err := <-watcher.Error:
        log.Println("error:", err)
    }
}

Index

• Constants
• type Event
  • func (e *Event) String() string
• type Watcher
  • func NewWatcher() (*Watcher, error)
  • func (w *Watcher) AddWatch(path string, flags uint32) error
  • func (w *Watcher) Close() error
  • func (w *Watcher) RemoveWatch(path string) error
  • func (w *Watcher) Watch(path string) error

Constants

const (

	// Options for AddWatch
	IN_DONT_FOLLOW uint32 = syscall.IN_DONT_FOLLOW
	IN_ONESHOT     uint32 = syscall.IN_ONESHOT
	IN_ONLYDIR     uint32 = syscall.IN_ONLYDIR

	// Events
	IN_ACCESS        uint32 = syscall.IN_ACCESS
	IN_ALL_EVENTS    uint32 = syscall.IN_ALL_EVENTS
	IN_ATTRIB        uint32 = syscall.IN_ATTRIB
	IN_CLOSE         uint32 = syscall.IN_CLOSE
	IN_CLOSE_NOWRITE uint32 = syscall.IN_CLOSE_NOWRITE
	IN_CLOSE_WRITE   uint32 = syscall.IN_CLOSE_WRITE
	IN_CREATE        uint32 = syscall.IN_CREATE
	IN_DELETE        uint32 = syscall.IN_DELETE
	IN_DELETE_SELF   uint32 = syscall.IN_DELETE_SELF
	IN_MODIFY        uint32 = syscall.IN_MODIFY
	IN_MOVE          uint32 = syscall.IN_MOVE
	IN_MOVED_FROM    uint32 = syscall.IN_MOVED_FROM
	IN_MOVED_TO      uint32 = syscall.IN_MOVED_TO
	IN_MOVE_SELF     uint32 = syscall.IN_MOVE_SELF
	IN_OPEN          uint32 = syscall.IN_OPEN

	// Special events
	IN_ISDIR      uint32 = syscall.IN_ISDIR
	IN_IGNORED    uint32 = syscall.IN_IGNORED
	IN_Q_OVERFLOW uint32 = syscall.IN_Q_OVERFLOW
	IN_UNMOUNT    uint32 = syscall.IN_UNMOUNT
)

Types

type Event

type Event struct {
	Mask   uint32 // Mask of events
	Cookie uint32 // Unique cookie associating related events (for rename(2))
	Name   string // File name (optional)
}

func (*Event) String

func (e *Event) String() string

String formats the event e in the form "filename: 0xEventMask = IN_ACCESS|IN_ATTRIB_|..."

type Watcher

type Watcher struct {
	Error chan error  // Errors are sent on this channel
	Event chan *Event // Events are returned on this channel
	// contains filtered or unexported fields
}

func NewWatcher

func NewWatcher() (*Watcher, error)

NewWatcher creates and returns a new inotify instance using inotify_init(2)

func (*Watcher) AddWatch

func (w *Watcher) AddWatch(path string, flags uint32) error

AddWatch adds path to the watched file set. The flags are interpreted as described in inotify_add_watch(2).

func (*Watcher) Close

func (w *Watcher) Close() error

Close closes an inotify watcher instance It sends a message to the reader goroutine to quit and removes all watches associated with the inotify instance

func (*Watcher) RemoveWatch

func (w *Watcher) RemoveWatch(path string) error

RemoveWatch removes path from the watched file set.

func (*Watcher) Watch

func (w *Watcher) Watch(path string) error

Watch adds path to the watched file set, watching all events.