os/signal

System
import "os/signal"

Implements access to incoming OS signals for graceful shutdown handling.

Example

package main

import (
    "fmt"
    "os"
    "os/signal"
    "syscall"
)

func main() {
    c := make(chan os.Signal, 1)
    signal.Notify(c, syscall.SIGINT, syscall.SIGTERM)
    sig := <-c
    fmt.Println("Got signal:", sig)
}

Key Types & Functions

NotifyStopResetNotifyContext

About os/signal

The os/signal package (imported as os/signal) belongs to the System category of Go packages. Implements access to incoming OS signals for graceful shutdown handling.

Go's standard library is one of the language's greatest strengths, providing production-ready implementations for networking, cryptography, encoding, I/O, and more. The os/signal package follows Go's philosophy of simplicity and composability — small, focused packages that combine through interfaces like io.Reader and io.Writer.

When using os/signal in production, follow Go best practices: handle errors explicitly, use context for cancellation and timeouts, prefer composition over inheritance, and write table-driven tests. The Go documentation at pkg.go.dev provides comprehensive API references and examples for every exported type and function.

Related Packages

oscontextnet/http