# 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/4ihkbda
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GDB 底層實現機制：窺視 GDB 內部是如何控制和調試程序的**
GDB 通過 ptrace 系統調用技術控制和調試目標程序，並通過事件循環（Event Loop）機制循環處理來自用戶和目標程序的事件。ptrace 系統調用---------------ptrance 是 linux 系統提供調試進程的系統調用，ptrace 接口提供了豐富的參數讓我們能夠控制和調試目標進程。ptrace 接口如下：request：指定調試的指令，指令的類型很多，如：PTRACE ⌘ Read more