Method Put

common.go:1415–1444

Put adds the provided (sessionKey, cs) pair to the cache. If cs is nil, the entry corresponding to sessionKey is removed from the cache instead.

(sessionKey string, cs *ClientSessionState)

// Put adds the provided (sessionKey, cs) pair to the cache. If cs is nil, the entry
// corresponding to sessionKey is removed from the cache instead.
func (c *lruSessionCache) Put(sessionKey string, cs *ClientSessionState) {
	c.Lock()
	defer c.Unlock()

	if elem, ok := c.m[sessionKey]; ok {
		if cs == nil {
			c.q.Remove(elem)
			delete(c.m, sessionKey)
		} else {
			entry := elem.Value.(*lruSessionCacheEntry)
			entry.state = cs
			c.q.MoveToFront(elem)
		}
		return
	}

	if c.q.Len() < c.capacity {
		entry := &lruSessionCacheEntry{sessionKey, cs}
		c.m[sessionKey] = c.q.PushFront(entry)
		return
	}

	elem := c.q.Back()
	entry := elem.Value.(*lruSessionCacheEntry)
	delete(c.m, entry.sessionKey)
	entry.sessionKey = sessionKey
	entry.state = cs
	c.q.MoveToFront(elem)
	c.m[sessionKey] = elem
}

// Get returns the ClientSessionState value associated with a given key. It
// returns (nil, false) if no value is found.