# I am the Watcher. I am your guide through this vast new twtiverse.
# 
# Usage:
#     https://watcher.sour.is/api/plain/users              View list of users and latest twt date.
#     https://watcher.sour.is/api/plain/twt                View all twts.
#     https://watcher.sour.is/api/plain/mentions?uri=:uri  View all mentions for uri.
#     https://watcher.sour.is/api/plain/conv/:hash         View all twts for a conversation subject.
# 
# Options:
#     uri     Filter to show a specific users twts.
#     offset  Start index for quey.
#     limit   Count of items to return (going back in time).
# 
# twt range = 1 1
# self = https://watcher.sour.is/conv/3qlem5q
yue-fang-readfog
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如何實現可靠的 UDP ?**
概述--UDP 是無連接的，盡最大可能交付 (網絡 IP 層)，不提供流量控制，擁塞控制，面向報文（對於應用程序的數據不合並也不拆分，直接添加 UDP 首部），支持一對一、一對多、多對一和多對多 (也就是多播和廣播) 通信。TCP 和 UDP 區別總結TCP 實現可靠傳輸層的核心有三點：確認與重傳 (已經可以滿足 “可靠性”，但是可能存在性能問題) 滑動窗口 (也就是流量控制，爲了提高吞吐量 ⌘ Read more