initial commit

listener/grpc/metadata.go

@@ -0,0 +1,29 @@
+package grpc
+
+import (
+	mdata "github.com/go-gost/gost/v3/pkg/metadata"
+)
+
+const (
+	defaultBacklog = 128
+)
+
+type metadata struct {
+	backlog  int
+	insecure bool
+}
+
+func (l *grpcListener) parseMetadata(md mdata.Metadata) (err error) {
+	const (
+		backlog  = "backlog"
+		insecure = "grpcInsecure"
+	)
+
+	l.md.backlog = mdata.GetInt(md, backlog)
+	if l.md.backlog <= 0 {
+		l.md.backlog = defaultBacklog
+	}
+
+	l.md.insecure = mdata.GetBool(md, insecure)
+	return
+}