Rename 'maxlifetime' to 'maxLifeTime'

Author: invzhi

zh/06.2.md

@@ -38,15 +38,15 @@ type Manager struct {
 	cookieName  string     //private cookiename
 	lock        sync.Mutex // protects session
 	provider    Provider
-	maxlifetime int64
+	maxLifeTime int64
 }
 
-func NewManager(provideName, cookieName string, maxlifetime int64) (*Manager, error) {
+func NewManager(provideName, cookieName string, maxLifeTime int64) (*Manager, error) {
 	provider, ok := provides[provideName]
 	if !ok {
 		return nil, fmt.Errorf("session: unknown provide %q (forgotten import?)", provideName)
 	}
-	return &Manager{provider: provider, cookieName: cookieName, maxlifetime: maxlifetime}, nil
+	return &Manager{provider: provider, cookieName: cookieName, maxLifeTime: maxLifeTime}, nil
 }
 
 ```
@@ -128,7 +128,7 @@ func (manager *Manager) SessionStart(w http.ResponseWriter, r *http.Request) (se
 	if err != nil || cookie.Value == "" {
 		sid := manager.sessionId()
 		session, _ = manager.provider.SessionInit(sid)
-		cookie := http.Cookie{Name: manager.cookieName, Value: url.QueryEscape(sid), Path: "/", HttpOnly: true, MaxAge: int(manager.maxlifetime)}
+		cookie := http.Cookie{Name: manager.cookieName, Value: url.QueryEscape(sid), Path: "/", HttpOnly: true, MaxAge: int(manager.maxLifeTime)}
 		http.SetCookie(w, &cookie)
 	} else {
 		sid, _ := url.QueryUnescape(cookie.Value)
@@ -214,8 +214,8 @@ func init() {
 func (manager *Manager) GC() {
 	manager.lock.Lock()
 	defer manager.lock.Unlock()
-	manager.provider.SessionGC(manager.maxlifetime)
-	time.AfterFunc(time.Duration(manager.maxlifetime), func() { manager.GC() })
+	manager.provider.SessionGC(manager.maxLifeTime)
+	time.AfterFunc(time.Duration(manager.maxLifeTime), func() { manager.GC() })
 }
 ```
 我们可以看到GC充分利用了time包中的定时器功能，当超时`maxLifeTime`之后调用GC函数，这样就可以保证`maxLifeTime`时间内的session都是可用的，类似的方案也可以用于统计在线用户数之类的。