Hi authors,
I read the draft. I think the API list for grasp is complete and good. But I have some comments on section 2.2. 2.2. Asynchronous Operations '... there are two main techniques for such parallel operations: multi-threading, or a polling or 'event loop' structure.' According to my knowledge, 'multi-threading' is a different thing with asynchronous programming mechanism. So I prefer to 'asynchronous programming mechanisms with multi-threading' here. The main techniques for asynchronous programming discussed in draft should be 'polling', however, polling is not so efficient. The more efficient one is 'call back' mechanism. 'session_nonce' parameter may be useful for polling, but 'call back function pointer( or reference in some programming language)' is normally used as parameter of invoked functions. All logics should be executed in call back functions which will be called when some events occur, for example receiving response message for the request, or message timeout. Best regards, Guangpeng Li
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