From f98db6d21cda8e00ebd79055ed0c27829b4579da Mon Sep 17 00:00:00 2001
From: John <john@johng.cn>
Date: Mon, 10 Jun 2019 21:23:49 +0800
Subject: [PATCH] comments for gcache update

---
 g/os/gcache/gcache.go       | 4 ++--
 g/os/gcache/gcache_cache.go | 9 +++------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/g/os/gcache/gcache.go b/g/os/gcache/gcache.go
index f24ccf268..3cb14481c 100644
--- a/g/os/gcache/gcache.go
+++ b/g/os/gcache/gcache.go
@@ -7,10 +7,10 @@
 // Package gcache provides high performance and concurrent-safe in-memory cache for process.
 package gcache
 
-// 全局缓存管理对象
+// Default cache object.
 var cache = New()
 
-// (使用全局KV缓存对象)设置kv缓存键值对，过期时间单位为**毫秒**
+// Set sets <key> with <value>, which is expired after <expire> milliseconds.
 func Set(key interface{}, value interface{}, expire int)  {
     cache.Set(key, value, expire)
 }
diff --git a/g/os/gcache/gcache_cache.go b/g/os/gcache/gcache_cache.go
index 33ad10e74..e4456a9db 100644
--- a/g/os/gcache/gcache_cache.go
+++ b/g/os/gcache/gcache_cache.go
@@ -13,13 +13,12 @@ import (
     "unsafe"
 )
 
-// 缓存对象。
-// 底层只有一个缓存对象，如果需要提高并发性能，可新增缓存对象无锁哈希表，用键名做固定分区。
+// Cache struct.
 type Cache struct {
     *memCache
 }
 
-// Cache对象按照缓存键名首字母做了分组
+// New creates and returns a new cache object.
 func New(lruCap...int) *Cache {
     c := &Cache {
         memCache : newMemCache(lruCap...),
@@ -28,10 +27,8 @@ func New(lruCap...int) *Cache {
     return c
 }
 
-// 清空缓存中的所有数据
+// Clear clears all data of the cache.
 func (c *Cache) Clear() {
-    // 使用原子操作替换缓存对象
     old := atomic.SwapPointer((*unsafe.Pointer)(unsafe.Pointer(&c.memCache)), unsafe.Pointer(newMemCache()))
-    // 关闭旧的缓存对象
     (*memCache)(old).Close()
 }
\ No newline at end of file