问题描述
io_service对象:: poll_one运行io_service对象的事件处理循环
执行一个准备处理程序。
VS
io_service对象:: run_one运行io_service对象的事件处理循环
至多一个处理程序来执行。
从该解释这似乎poll_one可以执行多个处理程序？是否run_one或poll_one使用）调用poll_one / run_one这就是所谓的run（任何线程或只是线程？
From that explanation it would seem poll_one could execute more than one handler? Does run_one or poll_one use any thread that's called run() or only the thread that calls poll_one/run_one?
有关ASIO的文档是很稀疏。
The documentation for ASIO is very sparse.
推荐答案
poll_one 将情况立即（非阻塞）返回没有事件来处理。
poll_one will return immediately (non-blocking) in case there is no event to process.
run_one 将阻塞调用线程，直到一个事件准备处理。
run_one will block the calling thread until one event is ready to process.
You could also check some documentation here
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