Initial commit

signal.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"log"
+	"os"
+	"syscall"
+)
+
+var PrintOutput = true
+var sigChan = make(chan os.Signal, 1)
+
+// sigHandler OS signal handler.
+func sigHandler() {
+	for s := range sigChan {
+		switch s {
+		case syscall.SIGUSR1:
+			log.Print("Got SIGUSR1, stopping output")
+
+			PrintOutput = false
+
+		case syscall.SIGUSR2:
+			log.Print("Got SIGUSR2, resuming output")
+
+			PrintOutput = true
+
+			UpdateReady <- true
+
+		// We have signal that we're not interested in, so make a new loop iteration.
+		default:
+			continue
+		}
+	}
+}