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4f760f2807
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fix: 修复 dedicated bulk attach 竞态并优化 short write 补写路径
- 客户端 dedicated attach 回复改为精确读取单帧，避免 attach reply 与后续 NBR1 数据粘连后被误解析
- 服务端 accepted attach 改为先 detach transport，再直接回 attach reply，随后立即切入 dedicated bulk read loop
- transport 读循环在 stop 或 transport ownership 失效后不再继续上推已读数据，避免 handoff 后首包被旧 reader 吃掉
- dedicated bulk record 写路径改为 full-write，消除 short write 导致的 invalid bulk fast payload
- 优化 vectored write 补写策略：先尝试一次 writev，未写完时直接顺序补完剩余 buffers，减少重复 WriteTo 开销
- 放宽 vectored write 能力识别，支持通过 UnwrapConn/WriteBuffers 命中 fast path
- 修复 dedicated batch 排队路径 payload 复用问题，改为深拷贝 queued items
- 补齐 dedicated attach、short write、payload clone、transport stop/handoff 等回归测试
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2026-04-16 17:27:48 +08:00 |
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