Re: Am I missing with ref in this code?

[Paul Backus via Digitalmars-d-learn]

On Thursday, 24 January 2019 at 15:28:19 UTC, Suliman wrote:
I am doing very small link-checker. Here is' code 
https://run.dlang.io/is/p8whrA

I am expecting that on line:
writefln("url: %s, status: %s", url.url, url.status);

I will print link and it's status. But I am getting only:
url: http://127.0.0.1:8081/hck, status:
url: http://127.0.0.1:8081/hck2, status:
url: http://127.0.0.1:8081/hck3, status:

It's seems that I missed something with refs? Could you help me 
find error?

It's because runWorkerTask internally passes its arguments along 
to the function by value:

https://github.com/vibe-d/vibe.d/blob/master/core/vibe/core/core.d#L364

The workaround is to pass a pointer instead:

    void getServiceStatus(MyUrl* url) {
        // ...
    }

    // ...

    runWorkerTask(&getServiceStatus, &url);