| 90 | } |
| 91 | |
| 92 | func (w *Writer) Write(p []byte) (n int, err error) { |
| 93 | w.mu.Lock() |
| 94 | defer w.mu.Unlock() |
| 95 | if w.cons { |
| 96 | os.Stderr.Write(p) |
| 97 | } |
| 98 | if w.file == nil { |
| 99 | if err := w.rotate(); err != nil { |
| 100 | os.Stderr.Write(p) |
| 101 | return 0, err |
| 102 | } |
| 103 | } |
| 104 | |
| 105 | t := time.Now() |
| 106 | b := t.AppendFormat(nil, time.RFC3339) |
| 107 | |
| 108 | // 按天切割 |
| 109 | if !bytes.Equal(w.creates[:10], b[:10]) { //2023-04-05 |
| 110 | go w.delete() // 每天检测一次旧文件 |
| 111 | if err := w.rotate(); err != nil { |
| 112 | return 0, err |
| 113 | } |
| 114 | } |
| 115 | // 按大小切割,需要考虑bw缓冲区中未写入的数据 |
| 116 | if w.size+int64(len(p))+int64(w.bw.Buffered()) >= w.maxSize { |
| 117 | if err := w.rotate(); err != nil { |
| 118 | return 0, err |
| 119 | } |
| 120 | } |
| 121 | // n, err = w.file.Write(p) |
| 122 | n, err = w.bw.Write(p) |
| 123 | w.size += int64(n) |
| 124 | if err != nil { |
| 125 | return n, err |
| 126 | } |
| 127 | return |
| 128 | } |
| 129 | |
| 130 | // rotate 切割文件 |
| 131 | func (w *Writer) rotate() error { |