Dicts in different @async blocks

[tk3369]

@tkf

No offense, but I believe this is a very dangerous attitude towards thread programming. In principle, you should be able to prove that that your program does not have data race given the public API definitions of the functions you are using. The behavior of your program is undefined otherwise. But I agree that documentation is lacking. Even basic thread programming constructs like Channel do not explicitly mention what operations are thread-safe in the docstring.

@tkf I am in 100% agreement with you. Documentation makes a difference. Or the API should be clear e.g. thread-safe data structures could carry a prefix like TS (abbreviation of thread-safe for lack for a better suggestion) so it’s easy to determine if it’s the right data structure to use for writing thread-safe programs.