[#493] cmd/node: Add replicator section to config

Signed-off-by: Alex Vanin <alexey@nspcc.ru>

cmd/neofs-node/config/replicator/config.go

@@ -0,0 +1,27 @@
+package replicatorconfig
+
+import (
+	"time"
+
+	"github.com/nspcc-dev/neofs-node/cmd/neofs-node/config"
+)
+
+const (
+	subsection = "replicator"
+
+	// PutTimeoutDefault is a default timeout of object put request in replicator.
+	PutTimeoutDefault = 5 * time.Second
+)
+
+// PutTimeout returns value of "put_timeout" config parameter
+// from "replicator" section.
+//
+// Returns PutTimeoutDefault if value is not positive duration.
+func PutTimeout(c *config.Config) time.Duration {
+	v := config.DurationSafe(c.Sub(subsection), "put_timeout")
+	if v > 0 {
+		return v
+	}
+
+	return PutTimeoutDefault
+}