D Language 2.0

[Andrei Alexandrescu]

Nick Sabalausky wrote:
[snip]
> It's been no worse at threading than C/C++ for quite some time. It's just 
> starting to have a threading model that kicks the crap out of the threading 
> in the vast majority of languages out there.

BTW, that effort is going quite well. For example, a producer-consumer 
file copy program using the proposed API has 20 lines, correctness and all.

import std.algorithm, std.concurrency, std.stdio;

void main() {
    enum bufferSize = 1024 * 100;
    auto tid = spawn(&writer);
    // Read loop
    auto src = stdin.by!(ubyte)();
    for (;;) {
       auto buffer = UniqueArray!(ubyte)(bufferSize);
       auto length = copy(take(src, bufferSize), buffer).length;
       send(tid, move(buffer));
       if (length == 0) break;
    }
}

void writer() {
    // Write loop
    auto tgt = stdout.by!(ubyte)();
    for (;;) {
       auto buffer = receiveOnly!(UniqueArray!ubyte)();
       copy(buffer, tgt);
    }
}


Andrei