fix linux: undefined: syscall.SIGINFO

flow/signal_handling.go

@@ -1,4 +1,4 @@
-// +build !plan9 !windows
+// +build darwin freebsd netbsd openbsd, !plan9, !windows, !linux
 
 package flow
 

flow/signal_handling_linux.go

@@ -0,0 +1,34 @@
+// +build linux
+
+package flow
+
+import (
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func OnInterrupt(fn func()) {
+	// deal with control+c,etc
+	signalChan := make(chan os.Signal, 1)
+	// controlling terminal close, daemon not exit
+	signal.Ignore(syscall.SIGHUP)
+	signal.Notify(signalChan,
+		os.Interrupt,
+		os.Kill,
+		syscall.SIGALRM,
+		// syscall.SIGHUP,
+		// syscall.SIGINFO, this causes windows to fail
+		syscall.SIGINT,
+		syscall.SIGTERM,
+		// syscall.SIGQUIT, // Quit from keyboard, "kill -3"
+	)
+	go func() {
+		for sig := range signalChan {
+			fn()
+			if sig != syscall.SIGTERM {
+				os.Exit(0)
+			}
+		}
+	}()
+}