Question about multi-threading and mutexes

[Horsetopus]

Hello. I have questions regarding Haxe (Neko target), and Multi-Threading.

So in haxe, this:

var cpt:Int;

Thread.create( function() { while( true ) cpt++; } ); //function1

Thread.create( function() { while( true ) cpt--; } ); //function2

builds, run, and work. Right? Except if both Thread try to access at the same time, and then anything goes. So it's a no go.

But what about objects with the mutex mechanic?

If I have a Buffer class ( some FIFO string array with a mutex to lock on writing and reading ), can I just read it from within the created thread, or do I have to send it through sendMessage?

Just reading it seams to work, from my tests. But I don't have the means to stress-test it with a lot of connections, and I am afraid it just works now as a simple boolean lock, while I suppose mutex are more reliable.

Anybody?

Thanks.

[Max S]

If the Buffer class read/write/etc methods are mutexed, you should be fine in multithreaded environment - that's the whole point of having a mutex. Thread.sendMessage() is just another way of doing the same thing, synchronizing read/write access to data.

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[Max S]

BTW, there's a neko.vm.Deque for you, too. Should do the same thing as your Buffer class.