add examples for package gproc

.example/os/gproc/signal/signal_handler.go

@@ -0,0 +1,54 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"os/signal"
+	"syscall"
+	"time"
+)
+
+func signalHandlerForMQ() {
+	var (
+		sig          os.Signal
+		receivedChan = make(chan os.Signal)
+	)
+	signal.Notify(
+		receivedChan,
+		syscall.SIGINT,
+		syscall.SIGQUIT,
+		syscall.SIGKILL,
+		syscall.SIGTERM,
+		syscall.SIGABRT,
+	)
+	for {
+		sig = <-receivedChan
+		fmt.Println("MQ is shutting down due to signal:", sig.String())
+		time.Sleep(time.Second)
+		fmt.Println("MQ is shut down smoothly")
+		return
+	}
+}
+
+func main() {
+	fmt.Println("Process start, pid:", os.Getpid())
+	go signalHandlerForMQ()
+
+	var (
+		sig          os.Signal
+		receivedChan = make(chan os.Signal)
+	)
+	signal.Notify(
+		receivedChan,
+		syscall.SIGINT,
+		syscall.SIGQUIT,
+		syscall.SIGKILL,
+		syscall.SIGTERM,
+		syscall.SIGABRT,
+	)
+	for {
+		sig = <-receivedChan
+		fmt.Println("MainProcess is shutting down due to signal:", sig.String())
+		return
+	}
+}

.example/os/gproc/signal/signal_handler_gproc.go

@@ -0,0 +1,27 @@
+package main
+
+import (
+	"fmt"
+	"github.com/gogf/gf/os/gproc"
+	"os"
+	"time"
+)
+
+func signalHandlerForMQ(sig os.Signal) {
+	fmt.Println("MQ is shutting down due to signal:", sig.String())
+	time.Sleep(time.Second)
+	fmt.Println("MQ is shut down smoothly")
+}
+
+func signalHandlerForMain(sig os.Signal) {
+	fmt.Println("MainProcess is shutting down due to signal:", sig.String())
+}
+
+func main() {
+	fmt.Println("Process start, pid:", os.Getpid())
+	gproc.AddSigHandlerShutdown(
+		signalHandlerForMQ,
+		signalHandlerForMain,
+	)
+	gproc.Listen()
+}

frame/g/g_object.go

@@ -81,13 +81,6 @@ func Log(name ...string) *glog.Logger {
 	return gins.Log(name...)
 }
 
-// Database is alias of DB.
-// See DB.
-// Deprecated, use DB instead.
-func Database(name ...string) gdb.DB {
-	return gins.Database(name...)
-}
-
 // DB returns an instance of database ORM object with specified configuration group name.
 func DB(name ...string) gdb.DB {
 	return gins.Database(name...)

os/gproc/gproc_signal.go

@@ -47,9 +47,11 @@ func AddSigHandler(handler SigHandler, signals ...os.Signal) {
 // syscall.SIGKILL,
 // syscall.SIGTERM,
 // syscall.SIGABRT.
-func AddSigHandlerShutdown(handler SigHandler) {
-	for sig, _ := range shutdownSignalMap {
-		signalHandlerMap[sig] = append(signalHandlerMap[sig], handler)
+func AddSigHandlerShutdown(handler ...SigHandler) {
+	for _, h := range handler {
+		for sig, _ := range shutdownSignalMap {
+			signalHandlerMap[sig] = append(signalHandlerMap[sig], h)
+		}
 	}
 }