package signal

import "github.com/dotcloud/docker/pkg/signal"

Index ¶

• Constants
• Variables
• func CatchAll(sigc chan os.Signal)
• func DumpStacks()
• func StopCatch(sigc chan os.Signal)
• func Trap(cleanup func())

Constants ¶

const SIGCHLD = syscall.SIGCHLD

Signals used in api/client (no windows equivalent, use invalid signals so they don't get handled)

const SIGWINCH = syscall.SIGWINCH

Variables ¶

var SignalMap = map[string]syscall.Signal{}

Functions ¶

func CatchAll ¶

func CatchAll(sigc chan os.Signal)

func DumpStacks ¶

func DumpStacks()

func StopCatch ¶

func StopCatch(sigc chan os.Signal)

func Trap ¶

func Trap(cleanup func())

Trap sets up a simplified signal "trap", appropriate for common behavior expected from a vanilla unix command-line tool in general (and the Docker engine in particular).

• If SIGINT or SIGTERM are received, `cleanup` is called, then the process is terminated.
• If SIGINT or SIGTERM are received 3 times before cleanup is complete, then cleanup is skipped and the process is terminated immediately (allows force quit of stuck daemon)
• A SIGQUIT always causes an exit without cleanup, with a goroutine dump preceding exit.

Source Files ¶

signal.go signal_unix.go signal_unsupported.go trap.go