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avoid duplicated setting chunks into cache

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This commit is contained in:
Chris Lu 2020-04-12 01:06:50 -07:00
parent b9b7da905e
commit 2a1f396df5
1 changed files with 11 additions and 0 deletions
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11
weed/util/chunk_cache/chunk_cache.go
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@ -54,6 +54,10 @@ func (c *ChunkCache) GetChunk(fileId string) (data []byte) {
c.RLock()
defer c.RUnlock()
return c.doGetChunk(fileId)
}
func (c *ChunkCache) doGetChunk(fileId string) (data []byte) {
if data = c.memCache.GetChunk(fileId); data != nil {
return data
}
@ -86,6 +90,13 @@ func (c *ChunkCache) SetChunk(fileId string, data []byte) {
c.Lock()
defer c.Unlock()
if existingData := c.doGetChunk(fileId); len(existingData)==0{
c.doSetChunk(fileId, data)
}
}
func (c *ChunkCache) doSetChunk(fileId string, data []byte) {
c.memCache.SetChunk(fileId, data)
if len(c.diskCaches) == 0 {