[cfe-dev] C++ modules questions

[Thompson, John]

Our distributed build tool team is asking the following questions regarding C++ Modules.  [My guesses in brackets.  Please correct.]

- Is the module creation mechanism (that fills the module cache) multi-process safe?

[yes]

- If two or more compiler instances both try to create the same entry how is this arbitrated?

[O/S locks]

- Does it allow for processes being terminated whilst creating cache entries?  [I.e. are incomplete files cleaned up?]

[I don't know]

Thanks.

-John

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