repurpose drivers from mock to no-op and memory

drivers/tracker/memory/pool.go

@@ -0,0 +1,33 @@
+// Copyright 2014 The Chihaya Authors. All rights reserved.
+// Use of this source code is governed by the BSD 2-Clause license,
+// which can be found in the LICENSE file.
+
+package memory
+
+import (
+	"sync"
+
+	"github.com/chihaya/chihaya/drivers/tracker"
+	"github.com/chihaya/chihaya/models"
+)
+
+type Pool struct {
+	users  map[string]*models.User
+	usersM sync.RWMutex
+
+	torrents  map[string]*models.Torrent
+	torrentsM sync.RWMutex
+
+	whitelist  map[string]bool
+	whitelistM sync.RWMutex
+}
+
+func (p *Pool) Get() (tracker.Conn, error) {
+	return &Conn{
+		Pool: p,
+	}, nil
+}
+
+func (p *Pool) Close() error {
+	return nil
+}