src.elv.sh@v0.21.0-dev.0.20240515223629-06979efb9a2a/pkg/sys/signal_unix.go (about)

     1  //go:build unix
     2  
     3  package sys
     4  
     5  import (
     6  	"os"
     7  	"os/signal"
     8  	"syscall"
     9  )
    10  
    11  func notifySignals() chan os.Signal {
    12  	// This catches every signal regardless of whether it is ignored.
    13  	sigCh := make(chan os.Signal, sigsChanBufferSize)
    14  	signal.Notify(sigCh)
    15  	// Calling signal.Notify will reset the signal ignore status, so we need to
    16  	// call signal.Ignore every time we call signal.Notify.
    17  	//
    18  	// TODO: Remove this if, and when, job control is implemented. This
    19  	// handles the case of running an external command from an interactive
    20  	// prompt.
    21  	//
    22  	// See https://b.elv.sh/988.
    23  	signal.Ignore(syscall.SIGTTIN, syscall.SIGTTOU, syscall.SIGTSTP)
    24  	return sigCh
    25  }