# 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/3sucboa
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Go 爲什麼不支持可重入鎖？**
大家好，我是煎魚。程序裏的鎖，是很多小夥伴在寫分佈式應用時用的最多的一個利器之一。使用 Go 的同學裏，絕大部分都有其他語言的經驗，就會對其中一點有疑惑，那就是 Go 裏的鎖，竟然不支持可重入？爲此，今天煎魚帶大家一起來了解這裏的設計考量，看看爲什麼。可重入鎖----如果對已經上鎖的普通互斥鎖進行 “加鎖” 操作，其結果要麼失敗，要麼會阻塞至解鎖。鎖的場景如下：在加鎖上：如果是可重入互斥鎖，當前嘗 ⌘ Read more