# 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/4ni7w2q
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Go: Copying a sync type
複製 sync 包中類型的變量時需小心謹慎sync 包提供了基本的同步原語，像互斥鎖 (sync.Mutex)、條件變量(sync.Cond)、等待組(sync.WaitGroup) 等。對於所有這些類型，有一條硬性規則需要我們遵守：不能對這些類型的變量進行復制使用。本文討論它們的工作原理以及如果進行復制使用會導致什麼問題。下面程序實現了一個計數存儲功能，並且是線程安全的。Counter結構中的m ⌘ Read more