add ks-iam and ks-apigateway

Signed-off-by: hongming <talonwan@yunify.com>

vendor/github.com/hashicorp/golang-lru/go.mod

@@ -0,0 +1 @@
+module github.com/hashicorp/golang-lru

vendor/github.com/hashicorp/golang-lru/lru.go

@@ -40,31 +40,35 @@ func (c *Cache) Purge() {
 // Add adds a value to the cache.  Returns true if an eviction occurred.
 func (c *Cache) Add(key, value interface{}) (evicted bool) {
 	c.lock.Lock()
-	defer c.lock.Unlock()
-	return c.lru.Add(key, value)
+	evicted = c.lru.Add(key, value)
+	c.lock.Unlock()
+	return evicted
 }
 
 // Get looks up a key's value from the cache.
 func (c *Cache) Get(key interface{}) (value interface{}, ok bool) {
 	c.lock.Lock()
-	defer c.lock.Unlock()
-	return c.lru.Get(key)
+	value, ok = c.lru.Get(key)
+	c.lock.Unlock()
+	return value, ok
 }
 
 // Contains checks if a key is in the cache, without updating the
 // recent-ness or deleting it for being stale.
 func (c *Cache) Contains(key interface{}) bool {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Contains(key)
+	containKey := c.lru.Contains(key)
+	c.lock.RUnlock()
+	return containKey
 }
 
 // Peek returns the key value (or undefined if not found) without updating
 // the "recently used"-ness of the key.
 func (c *Cache) Peek(key interface{}) (value interface{}, ok bool) {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Peek(key)
+	value, ok = c.lru.Peek(key)
+	c.lock.RUnlock()
+	return value, ok
 }
 
 // ContainsOrAdd checks if a key is in the cache  without updating the
@@ -98,13 +102,15 @@ func (c *Cache) RemoveOldest() {
 // Keys returns a slice of the keys in the cache, from oldest to newest.
 func (c *Cache) Keys() []interface{} {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Keys()
+	keys := c.lru.Keys()
+	c.lock.RUnlock()
+	return keys
 }
 
 // Len returns the number of items in the cache.
 func (c *Cache) Len() int {
 	c.lock.RLock()
-	defer c.lock.RUnlock()
-	return c.lru.Len()
+	length := c.lru.Len()
+	c.lock.RUnlock()
+	return length
 }

vendor/github.com/hashicorp/golang-lru/simplelru/lru_interface.go

@@ -1,37 +1,36 @@
 package simplelru
 
-
 // LRUCache is the interface for simple LRU cache.
 type LRUCache interface {
-  // Adds a value to the cache, returns true if an eviction occurred and
-  // updates the "recently used"-ness of the key.
-  Add(key, value interface{}) bool
+	// Adds a value to the cache, returns true if an eviction occurred and
+	// updates the "recently used"-ness of the key.
+	Add(key, value interface{}) bool
 
-  // Returns key's value from the cache and
-  // updates the "recently used"-ness of the key. #value, isFound
-  Get(key interface{}) (value interface{}, ok bool)
+	// Returns key's value from the cache and
+	// updates the "recently used"-ness of the key. #value, isFound
+	Get(key interface{}) (value interface{}, ok bool)
 
-  // Check if a key exsists in cache without updating the recent-ness.
-  Contains(key interface{}) (ok bool)
+	// Check if a key exsists in cache without updating the recent-ness.
+	Contains(key interface{}) (ok bool)
 
-  // Returns key's value without updating the "recently used"-ness of the key.
-  Peek(key interface{}) (value interface{}, ok bool)
+	// Returns key's value without updating the "recently used"-ness of the key.
+	Peek(key interface{}) (value interface{}, ok bool)
 
-  // Removes a key from the cache.
-  Remove(key interface{}) bool
+	// Removes a key from the cache.
+	Remove(key interface{}) bool
 
-  // Removes the oldest entry from cache.
-  RemoveOldest() (interface{}, interface{}, bool)
+	// Removes the oldest entry from cache.
+	RemoveOldest() (interface{}, interface{}, bool)
 
-  // Returns the oldest entry from the cache. #key, value, isFound
-  GetOldest() (interface{}, interface{}, bool)
+	// Returns the oldest entry from the cache. #key, value, isFound
+	GetOldest() (interface{}, interface{}, bool)
 
-  // Returns a slice of the keys in the cache, from oldest to newest.
-  Keys() []interface{}
+	// Returns a slice of the keys in the cache, from oldest to newest.
+	Keys() []interface{}
 
-  // Returns the number of items in the cache.
-  Len() int
+	// Returns the number of items in the cache.
+	Len() int
 
-  // Clear all cache entries
-  Purge()
+	// Clear all cache entries
+	Purge()
 }