OpenReader 读取缓存
(key string, useStale bool, isPartial bool)
| 127 | |
| 128 | // OpenReader 读取缓存 |
| 129 | func (this *MemoryStorage) OpenReader(key string, useStale bool, isPartial bool) (Reader, error) { |
| 130 | var hash = this.hash(key) |
| 131 | |
| 132 | // check if exists in list |
| 133 | exists, _, _ := this.list.Exist(types.String(hash)) |
| 134 | if !exists { |
| 135 | return nil, ErrNotFound |
| 136 | } |
| 137 | |
| 138 | // read from valuesMap |
| 139 | this.locker.RLock() |
| 140 | var item = this.valuesMap[hash] |
| 141 | |
| 142 | if item != nil { |
| 143 | item.isReferring = true |
| 144 | } |
| 145 | |
| 146 | if item == nil || !item.IsDone { |
| 147 | this.locker.RUnlock() |
| 148 | return nil, ErrNotFound |
| 149 | } |
| 150 | |
| 151 | if useStale || (item.ExpiresAt > fasttime.Now().Unix()) { |
| 152 | var reader = NewMemoryReader(item) |
| 153 | err := reader.Init() |
| 154 | if err != nil { |
| 155 | this.locker.RUnlock() |
| 156 | return nil, err |
| 157 | } |
| 158 | this.locker.RUnlock() |
| 159 | |
| 160 | return reader, nil |
| 161 | } |
| 162 | this.locker.RUnlock() |
| 163 | |
| 164 | _ = this.Delete(key) |
| 165 | |
| 166 | return nil, ErrNotFound |
| 167 | } |
| 168 | |
| 169 | // OpenWriter 打开缓存写入器等待写入 |
| 170 | func (this *MemoryStorage) OpenWriter(key string, expiredAt int64, status int, headerSize int, bodySize int64, maxSize int64, isPartial bool) (Writer, error) { |