lib/http: implement server auto shutdown when idle

In the `ServerOptions`, we add option `ShutdownIdleDuration` when set to
non-zero value it will start a timer.
When the timer expired, the server will stop accepting new connection and
then shutting down.

This allow de-activating HTTP server when no connections received after
specific duration to reduce the system resources.

1 files changed, 6 insertions, 0 deletions

diff --git a/lib/http/server_options.go b/lib/http/server_options.go
index 8e168885..61fcff33 100644
--- a/lib/http/server_options.go
+++ b/lib/http/server_options.go
@@ -9,6 +9,7 @@ import (
 	"net"
 	"net/http"
 	"strings"
+	"time"
 
 	"git.sr.ht/~shulhan/pakakeh.go/lib/memfs"
 )
@@ -63,6 +64,11 @@ type ServerOptions struct {
 	// The options for Cross-Origin Resource Sharing.
 	CORS CORSOptions
 
+	// ShutdownIdleDuration define the duration where the server will
+	// automatically stop accepting new connection and then shutting down
+	// the server.
+	ShutdownIdleDuration time.Duration
+
 	// If true, server generate index.html automatically if its not
 	// exist in the directory.
 	// The index.html contains the list of files inside the requested