• Andrej Mitrovic (8/8) Jun 29 2011 Is there any way a newly spawned thread can get the Tid of the thread
• Simen Kjaeraas (7/15) Jun 29 2011 std.concurrency actually has a thread-local variable called 'owner',
• Andrej Mitrovic (1/1) Jun 29 2011 I've filed it http://d.puremagic.com/issues/show_bug.cgi?id=6224
• Ali =?iso-8859-1?q?=C7ehreli?= (20/28) Jun 29 2011 Just pass it in as the first parameter:

Andrej Mitrovic <andrej.mitrovich gmail.com> writes:

Is there any way a newly spawned thread can get the Tid of the thread
that spawned it, basically its parent? I'd prefer that over using
this:

__gshared mainThread; // so workThread can access it

{
mainThread = thisTid();
auto workThread = spawn(&MidiThread);  // local
}

"Simen Kjaeraas" <simen.kjaras gmail.com> writes:

On Wed, 29 Jun 2011 22:59:47 +0200, Andrej Mitrovic  
<andrej.mitrovich gmail.com> wrote:

 Is there any way a newly spawned thread can get the Tid of the thread
 that spawned it, basically its parent? I'd prefer that over using
 this:

 __gshared mainThread; // so workThread can access it

 {
 mainThread = thisTid();
 auto workThread = spawn(&MidiThread);  // local
 }

std.concurrency actually has a thread-local variable called 'owner',
which is exactly  what you want. However, it is private.

This may very well be worth an enhancement request.

-- 
   Simen

Andrej Mitrovic <andrej.mitrovich gmail.com> writes:

I've filed it http://d.puremagic.com/issues/show_bug.cgi?id=6224

Ali =?iso-8859-1?q?=C7ehreli?= <acehreli yahoo.com> writes:

On Wed, 29 Jun 2011 22:59:47 +0200, Andrej Mitrovic wrote:

 Is there any way a newly spawned thread can get the Tid of the thread
 that spawned it, basically its parent? I'd prefer that over using this:
 
 __gshared mainThread; // so workThread can access it
 
 {
 mainThread = thisTid();
 auto workThread = spawn(&MidiThread);  // local }

Just pass it in as the first parameter:

import std.stdio;
import std.concurrency;

void workerThread(Tid owner)
{
    // ...

    writeln("worker's thisTid: ", &thisTid);
    assert(owner != thisTid);
}

void main()
{
    writeln("owner's thisTid : ", &thisTid);
    Tid worker = spawn(&workerThread, thisTid);
}

Interestingly the two variables will have the same address but they are 
not equal as the assert above passes:

owner's thisTid : 46B58C
worker's thisTid: 46B58C

Ali