add mysql timeouts

irc/mysql/config.go

@@ -0,0 +1,22 @@
+// Copyright (c) 2020 Shivaram Lingamneni
+// released under the MIT license
+
+package mysql
+
+import (
+	"time"
+)
+
+type Config struct {
+	// these are intended to be written directly into the config file:
+	Enabled         bool
+	Host            string
+	Port            int
+	User            string
+	Password        string
+	HistoryDatabase string `yaml:"history-database"`
+	Timeout         time.Duration
+
+	// XXX these are copied from elsewhere in the config:
+	ExpireTime time.Duration
+}