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37 lines
886 B
Go
37 lines
886 B
Go
// Copyright 2018 gf Author(https://github.com/gogf/gf). All Rights Reserved.
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//
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// This Source Code Form is subject to the terms of the MIT License.
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// If a copy of the MIT was not distributed with this file,
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// You can obtain one at https://github.com/gogf/gf.
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package gcache
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import (
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"github.com/gogf/gf/g/os/gtimer"
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"sync/atomic"
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"time"
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"unsafe"
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)
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// Cache struct.
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type Cache struct {
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*memCache
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}
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// New creates and returns a new cache object.
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func New(lruCap ...int) *Cache {
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c := &Cache{
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memCache: newMemCache(lruCap...),
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}
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gtimer.AddSingleton(time.Second, c.syncEventAndClearExpired)
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return c
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}
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// Clear clears all data of the cache.
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func (c *Cache) Clear() {
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// atomic swap to ensure atomicity.
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old := atomic.SwapPointer((*unsafe.Pointer)(unsafe.Pointer(&c.memCache)), unsafe.Pointer(newMemCache()))
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// close the old cache object.
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(*memCache)(old).Close()
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}
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