Re: Sending Tid in a struct

[Timon Gehr]

On 03/03/2012 12:09 PM, Nicolas Silva wrote:

Hi,

I'm trying to send structs using std.concurrency. the struct contains
a Tid (the id of the sender) so that the receiver can send an answer.

say:

struct Foo
{
   Tid tid;
   string str;
}

// ...

Foo f = {
   tid: thisTid,
   str: "hello!"
};
std.concurrency.send(someThread, f);
// /usr/include/d/dmd/phobos/std/concurrency.d(465): Error: static
assert  "Aliases to mutable thread-local data not allowed."
// hello.d(15):        instantiated from here: send!(Foo)

However, I can send a Tid if I pass it directly as a parameter of the
send function instead of passing it within a struct.

Is this a bug ? It looks like so to me but I guess I could have missed
something.

thanks in advance,

Nicolas

Yes, this seems to be a bug.

Workaround:

struct Foo{
    string s;
    Tid id;
}

void foo(){
    Foo foo;
    receive((Tuple!(string,"s",Tid,"id") bar){foo=Foo(bar.s,bar.id);});
}

void main(){
    auto id = spawn(&foo);
    id.send("string",id);
    ...
}