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写入缓存时减少对缓存目录的检查频率

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This commit is contained in:
刘祥超
2022-11-15 22:25:49 +08:00
parent 1bb818b5b0
commit 4c19c37f49
1 changed files with 9 additions and 13 deletions
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22
internal/caches/storage_file.go
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@@ -501,18 +501,6 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, siz
return nil, NewCapacityError("the disk is full")
}
// TODO 可以只stat一次
_, err = os.Stat(dir)
if err != nil {
if !os.IsNotExist(err) {
return nil, err
}
err = os.MkdirAll(dir, 0777)
if err != nil {
return nil, err
}
}
// 检查缓存是否已经生成
var cachePathName = dir + "/" + hash
var cachePath = cachePathName + ".cache"
@@ -579,7 +567,15 @@ func (this *FileStorage) openWriter(key string, expiredAt int64, status int, siz
var before = time.Now()
writer, err := os.OpenFile(tmpPath, flags, 0666)
if err != nil {
return nil, err
if os.IsNotExist(err) {
_ = os.MkdirAll(dir, 0777)
// open file again
writer, err = os.OpenFile(tmpPath, flags, 0666)
}
if err != nil {
return nil, err
}
}
if !isFlushing {
if time.Since(before) >= maxOpenFilesSlowCost {