1 files changed, 0 insertions, 93 deletions
diff --git a/core/sigtrap.go b/core/sigtrap.go
deleted file mode 100644
index f40dd971a..000000000
--- a/core/sigtrap.go
+++ /dev/null
@@ -1,93 +0,0 @@
-package core
-
-import (
-	"log"
-	"os"
-	"os/signal"
-	"sync"
-
-	"github.com/miekg/coredns/server"
-)
-
-// TrapSignals create signal handlers for all applicable signals for this
-// system. If your Go program uses signals, this is a rather invasive
-// function; best to implement them yourself in that case. Signals are not
-// required for the caddy package to function properly, but this is a
-// convenient way to allow the user to control this package of your program.
-func TrapSignals() {
-	trapSignalsCrossPlatform()
-	trapSignalsPosix()
-}
-
-// trapSignalsCrossPlatform captures SIGINT, which triggers forceful
-// shutdown that executes shutdown callbacks first. A second interrupt
-// signal will exit the process immediately.
-func trapSignalsCrossPlatform() {
-	go func() {
-		shutdown := make(chan os.Signal, 1)
-		signal.Notify(shutdown, os.Interrupt)
-
-		for i := 0; true; i++ {
-			<-shutdown
-
-			if i > 0 {
-				log.Println("[INFO] SIGINT: Force quit")
-				if PidFile != "" {
-					os.Remove(PidFile)
-				}
-				os.Exit(1)
-			}
-
-			log.Println("[INFO] SIGINT: Shutting down")
-
-			if PidFile != "" {
-				os.Remove(PidFile)
-			}
-
-			go os.Exit(executeShutdownCallbacks("SIGINT"))
-		}
-	}()
-}
-
-// executeShutdownCallbacks executes the shutdown callbacks as initiated
-// by signame. It logs any errors and returns the recommended exit status.
-// This function is idempotent; subsequent invocations always return 0.
-func executeShutdownCallbacks(signame string) (exitCode int) {
-	shutdownCallbacksOnce.Do(func() {
-		serversMu.Lock()
-		errs := server.ShutdownCallbacks(servers)
-		serversMu.Unlock()
-
-		if len(errs) > 0 {
-			for _, err := range errs {
-				log.Printf("[ERROR] %s shutdown: %v", signame, err)
-			}
-			exitCode = 1
-		}
-	})
-	return
-}
-
-// executeStartupCallbacks executes the startup callbacks as initiated
-// by signame. This is used when on restart when the child failed to start and
-// all middleware executed their shutdown functions
-func executeStartupCallbacks(signame string) (exitCode int) {
-	startupCallbacksOnce.Do(func() {
-		serversMu.Lock()
-		errs := server.StartupCallbacks(servers)
-		serversMu.Unlock()
-
-		if len(errs) > 0 {
-			for _, err := range errs {
-				log.Printf("[ERROR] %s shutdown: %v", signame, err)
-			}
-			exitCode = 1
-		}
-	})
-	return
-}
-
-var (
-	shutdownCallbacksOnce sync.Once
-	startupCallbacksOnce  sync.Once
-)