On Saturday, 8 August 2015 at 00:39:57 UTC, 岩倉 澪 wrote:
On Friday, 7 August 2015 at 22:13:35 UTC, 岩倉 澪 wrote:
"message" is local to the delegate that receiveTimeout takes.
I want to use "message" outside of the delegate in the
receiving thread. However, if you send an immutable value from
the worker thread, afaict there would be no way to assign it
to a global/outer variable without making a mutable copy
(expensive!)
I haven't really spent much time trying to pass my "message"
as mutable via shared yet, but hopefully that could work...
Found the answer to this :)
http://forum.dlang.org/post/mailman.1706.1340318206.24740.digitalmars-d-le...@puremagic.com
I send the results from my worker thread with assumeUnique, and
then simply cast away immutable in the receiving thread like so:
(in module scope)
Bar[] baz;
(in application loop)
import std.array
if(baz.empty)
{
import std.concurrency, std.datetime;
receiveTimeout(0.msecs,
(immutable Bar[] bar){ baz = cast(Bar[])bar; });
}
Note aside: if you only import what you need (say `import
std.concurrency : receiveTimeout; std.datetime : msecs`), you can
reduce the size of the executable considerably as your program
grows.
