# 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/gvbt6mq
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Socket 系統調用深入研究 -TCP 協議的整個通信過程-**
內核態和用戶態-----------通俗的說，用戶空間就是運行着用戶編寫的應用程序的虛擬內存空間。在 32 位的操作系統中，每個進程都有 4GB 獨立的虛擬內存空間，而 0 ~ 3GB 的虛擬內存空間就是用戶空間 。內核空間就是運行着操作系統代碼的虛擬內存空間，而 3GB ~ 4GB 的虛擬內存空間就是內核空間。在 Linux 中（當然 windows 下也有用戶態和內核態的區分，不過一般說用戶態 ⌘ Read more