Adding upstream version 2.52.6.

Signed-off-by: Daniel Baumann <daniel@debian.org>

internal/storage/memory/config.go

@@ -0,0 +1,33 @@
+package memory
+
+import "time"
+
+// Config defines the config for storage.
+type Config struct {
+	// Time before deleting expired keys
+	//
+	// Default is 10 * time.Second
+	GCInterval time.Duration
+}
+
+// ConfigDefault is the default config
+var ConfigDefault = Config{
+	GCInterval: 10 * time.Second,
+}
+
+// configDefault is a helper function to set default values
+func configDefault(config ...Config) Config {
+	// Return default config if nothing provided
+	if len(config) < 1 {
+		return ConfigDefault
+	}
+
+	// Override default config
+	cfg := config[0]
+
+	// Set default values
+	if int(cfg.GCInterval.Seconds()) <= 0 {
+		cfg.GCInterval = ConfigDefault.GCInterval
+	}
+	return cfg
+}