# 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/fi27guq
圖解 IO 多路複用之 Select 實現原理**
Linux 上提供了 IO 多路複用機制的實現有多種,常見的有 select、poll、epoll,下面分析一下 select 的多路複用的原理。     服務器端有 1 個監聽文件描述符和若干個通信文件描述符,每當服務器端建立一個新的連接後就會生成一個通信的文件描述符,如下圖所示:    select 可以同時檢測讀緩衝區(Read buffer)、寫緩衝區(Write buffer) ⌘ Read more