Hello everybody,

I am very happy to announce that Mecca version 0.0.1 (sorry, no more zeros than that) is now officially available. You can get the source code at https://github.com/weka-io/mecca. The API documentation is at https://weka-io.github.com/mecca/docs.

Mecca is a run-time support library for fibers management, as well as a few useful containers and libraries.

At this point in time, a getting started tutorial is still not available. Instead, I will post this small program for an echo server. It should give you a hint what APIs to check out with the documentation, so you can expand your search:

import core.sys.posix.sys.socket;
import std.algorithm : move;
import std.functional : toDelegate;

import mecca.log;
import mecca.reactor;
import mecca.reactor.io.fd;
import mecca.reactor.io.signals;

enum EchoerPort = 31337;

int main()
{
    theReactor.setup();

    reactorSignal.registerHandler(OSSignal.SIGTERM, toDelegate(&termHandler));
    reactorSignal.registerHandler(OSSignal.SIGINT, toDelegate(&termHandler));

    theReactor.spawnFiber!listener();

    return theReactor.start();
}

void termHandler(ref const(signalfd_siginfo) siginfo) {
    // Signal handler, but any non-yielding operation is safe to call from here.
    theReactor.stop();
}

void listener() {
    auto listenSocket = ConnectedSocket.listen( SockAddrIPv4.any( EchoerPort ) );
    listenSocket.setSockOpt( SOL_SOCKET, SO_REUSEADDR, 1 );

    while( true ) {
        SockAddr clientAddress;
        auto clientSocket = listenSocket.accept(clientAddress);

        // The next line's toString is the only reason we can't annotate
        // listener as @nogc.
        INFO!"Received new connection from %s"(clientAddress.toString());
        theReactor.spawnFiber!echoClient( move(clientSocket) );
    }
}

void echoClient(ConnectedSocket sock) @nogc {
    ssize_t dataLength;
    do {
        char[4096] buffer;
        dataLength = sock.read(buffer);
        sock.write(buffer[0..dataLength]);
    } while( dataLength>0 );
}

On Friday, 4 May 2018 at 05:23:51 UTC, Shachar Shemesh wrote:
> Hello everybody,
>
> I am very happy to announce that Mecca version 0.0.1 (sorry, no more zeros than that) is now officially available. You can get the source code at https://github.com/weka-io/mecca. The API documentation is at https://weka-io.github.com/mecca/docs.
>
> [...]

https://www.reddit.com/r/programming/comments/8gxrkg/wekaio_open_sources_mecca_dlang_library_for_nogc?sort=new

On Friday, 4 May 2018 at 05:23:51 UTC, Shachar Shemesh wrote:
> Hello everybody,
>
> I am very happy to announce that Mecca version 0.0.1 (sorry, no more zeros than that) is now officially available. You can get the source code at https://github.com/weka-io/mecca. The API documentation is at https://weka-io.github.com/mecca/docs.
>
> [...]

why the name mecca?

On Saturday, 5 May 2018 at 10:43:53 UTC, Mengu wrote:
> On Friday, 4 May 2018 at 05:23:51 UTC, Shachar Shemesh wrote:
>> Hello everybody,
>>
>> I am very happy to announce that Mecca version 0.0.1 (sorry, no more zeros than that) is now officially available. You can get the source code at https://github.com/weka-io/mecca. The API documentation is at https://weka-io.github.com/mecca/docs.
>>
>> [...]
>
> why the name mecca?

Liran said in his closing keynote that they use a lot of internal codenames that rhyme with Weka.

On 05/05/2018 04:09 AM, Joakim wrote:
> On Saturday, 5 May 2018 at 10:43:53 UTC, Mengu wrote:
>> On Friday, 4 May 2018 at 05:23:51 UTC, Shachar Shemesh wrote:
>>> Hello everybody,
>>>
>>> I am very happy to announce that Mecca version 0.0.1 (sorry, no more zeros than that) is now officially available. You can get the source code at https://github.com/weka-io/mecca. The API documentation is at https://weka-io.github.com/mecca/docs.
>>>
>>> [...]
>>
>> why the name mecca?
> 
> Liran said in his closing keynote that they use a lot of internal codenames that rhyme with Weka.

Shachar further explained that they have internal tools and projects that all end with "eka" like teka. M was available, so they called it Meka, which sounded like an existing place so changed its name to Mecca.

Ali