# 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/pi4o3fq
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Go 運行時的併發原語**
這篇文章我們來了解一下隱藏在 Go 運行時中的一些併發原語， 因爲運行時是底座和包循環依賴等原因，運行時中很少使用標準庫中的併發原語，它有自己的併發原語。mutex在 runtime/runtime2.go[1] 定義了一個互斥鎖，它的定義如下:type mutex struct { lockRankStruct key uintptr}它可是運行時中的大紅人了，在很多數據結構中都被廣泛的使用，凡 ⌘ Read more