mirror of
https://gitee.com/johng/gf.git
synced 2024-12-04 13:18:01 +08:00
30 lines
837 B
Go
30 lines
837 B
Go
// Copyright 2018 gf Author(https://gitee.com/johng/gf). All Rights Reserved.
|
|
//
|
|
// This Source Code Form is subject to the terms of the MIT License.
|
|
// If a copy of the MIT was not distributed with this file,
|
|
// You can obtain one at https://gitee.com/johng/gf.
|
|
|
|
package gcache
|
|
|
|
import (
|
|
"sync/atomic"
|
|
"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。
|
|
type Cache struct {
|
|
*memCache // 底层缓存对象
|
|
}
|
|
|
|
// Cache对象按照缓存键名首字母做了分组
|
|
func New() *Cache {
|
|
return &Cache {
|
|
memCache : newMemCache(),
|
|
}
|
|
}
|
|
|
|
// 清空缓存中的所有数据
|
|
func (c *Cache) Clear() {
|
|
atomic.SwapPointer((*unsafe.Pointer)(unsafe.Pointer(&c.memCache)), unsafe.Pointer(newMemCache()))
|
|
} |