On 8/17/21 7:05 AM, JG wrote:
Hi

I have a program with two threads. One thread produces data that is put in a queue and then consumed by the other thread. I initially built a custom queue to do this, but thought this should have some standard solution in D? I looked at std.concurrency and thought that message passing could be used. However, the problem is that I get the following error.

Error: static assert:  "Aliases to mutable thread-local data not allowed."

I am not sure how to solve this.  Maybe message parsing isn't the correct solution?
Is there some standard solution to this in D?

Data with references needs to be marked either immutable or shared in order to be passed using std.concurrency. D is strict about not sharing thread-local data, because then you can use the type system to prove lock-free code is valid.

However, data that has no references (aliases) should be passable regardless of mutability, because you are passing a copy.

-Steve

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