| 82 | } |
| 83 | |
| 84 | func (b *recvBuffer) put(r recvMsg) { |
| 85 | b.mu.Lock() |
| 86 | if b.err != nil { |
| 87 | // drop the buffer on the floor. Since b.err is not nil, any subsequent reads |
| 88 | // will always return an error, making this buffer inaccessible. |
| 89 | r.buffer.Free() |
| 90 | b.mu.Unlock() |
| 91 | // An error had occurred earlier, don't accept more |
| 92 | // data or errors. |
| 93 | return |
| 94 | } |
| 95 | b.err = r.err |
| 96 | if len(b.backlog) == 0 { |
| 97 | select { |
| 98 | case b.c <- r: |
| 99 | b.mu.Unlock() |
| 100 | return |
| 101 | default: |
| 102 | } |
| 103 | } |
| 104 | b.backlog = append(b.backlog, r) |
| 105 | b.mu.Unlock() |
| 106 | } |
| 107 | |
| 108 | func (b *recvBuffer) load() { |
| 109 | b.mu.Lock() |