On 2/2/20 12:13 PM, cc wrote:
On Friday, 31 January 2020 at 15:47:26 UTC, Steven Schveighoffer wrote:
You could use RefCounted to build a struct that then is sendable with
the data you need. RefCounted allocates using C malloc, not the GC.
Thanks for the tips. How exactly would I go about sending a RefCounted
value?
static struct Foo {
int a;
@disable this(this);
}
auto t = RefCounted!Foo(Foo(5));
tid.send(t);
Gives me: phobos\std\concurrency.d(625): Error: static assert: "Aliases
to mutable thread-local data not allowed."
Whereas trying to declare it as immutable gives me a pile of errors
including: Error: mutable method `std.typecons.RefCounted!(int,
cast(RefCountedAutoInitialize)1).RefCounted.__postblit` is not callable
using a `immutable` object
Ugh, I think it should be doable. But I don't have time right now to try
and figure it out.
The idea would be to send an immutable/shared piece of data that's
refcounted across to another thread. If send is rejecting that, or
refCounted is not playing nice, maybe file some bugzilla issues.
-Steve
