signal

package
v1.7.0-rc1 Latest Latest
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Published: May 28, 2015 License: Apache-2.0 Imports: 6 Imported by: 0

README

This package provides helper functions for dealing with signals across various operating systems

Documentation

Index

Constants

View Source
const SIGCHLD = syscall.SIGCHLD

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

View Source
const SIGWINCH = syscall.SIGWINCH

Variables

View Source
var SignalMap = map[string]syscall.Signal{
	"ABRT":   syscall.SIGABRT,
	"ALRM":   syscall.SIGALRM,
	"BUS":    syscall.SIGBUS,
	"CHLD":   syscall.SIGCHLD,
	"CLD":    syscall.SIGCLD,
	"CONT":   syscall.SIGCONT,
	"FPE":    syscall.SIGFPE,
	"HUP":    syscall.SIGHUP,
	"ILL":    syscall.SIGILL,
	"INT":    syscall.SIGINT,
	"IO":     syscall.SIGIO,
	"IOT":    syscall.SIGIOT,
	"KILL":   syscall.SIGKILL,
	"PIPE":   syscall.SIGPIPE,
	"POLL":   syscall.SIGPOLL,
	"PROF":   syscall.SIGPROF,
	"PWR":    syscall.SIGPWR,
	"QUIT":   syscall.SIGQUIT,
	"SEGV":   syscall.SIGSEGV,
	"STKFLT": syscall.SIGSTKFLT,
	"STOP":   syscall.SIGSTOP,
	"SYS":    syscall.SIGSYS,
	"TERM":   syscall.SIGTERM,
	"TRAP":   syscall.SIGTRAP,
	"TSTP":   syscall.SIGTSTP,
	"TTIN":   syscall.SIGTTIN,
	"TTOU":   syscall.SIGTTOU,
	"UNUSED": syscall.SIGUNUSED,
	"URG":    syscall.SIGURG,
	"USR1":   syscall.SIGUSR1,
	"USR2":   syscall.SIGUSR2,
	"VTALRM": syscall.SIGVTALRM,
	"WINCH":  syscall.SIGWINCH,
	"XCPU":   syscall.SIGXCPU,
	"XFSZ":   syscall.SIGXFSZ,
}

Functions

func CatchAll

func CatchAll(sigc chan os.Signal)

func DumpStacks added in v1.7.0

func DumpStacks()

func StopCatch

func StopCatch(sigc chan os.Signal)

func Trap added in v1.2.0

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.

Types

This section is empty.

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