wait/notifyAll like in Java

[BLS]

BLS schrieb:
> Frank Benoit (keinfarbton) schrieb:
> 
>> While porting java stuff, i come to this:
>>
>> How can I implement a JObject class as a base of all the ported classes
>> to have wait/notify/notifyAll with the behaviour like in Java.
>>
>> http://java.sun.com/j2se/1.4.2/docs/api/java/lang/Object.html
>>
>> The "synchronized" of D objects, already uses some monitor.
>> Is it possible to access and use it for such an implementation?
> 
> 
> Hi Frank,
> probabely this hint is simply shi* but
> I suggest to have a look on Dough Leas concurrent library at :
> 
> http://g.oswego.edu/dl/classes/EDU/oswego/cs/dl/util/concurrent/intro.html
> 
>  The package mainly consists of implementations of a few interfaces:
> 
>     * Sync -- locks, conditions
>     * Channel -- queues, buffers
>     * Barrier -- multi-party synchronization
>     * SynchronizedVariable -- atomic ints, refs etc
>      * Executor -- replacements for direct use of Thread
> 
> wait() is AFAIK implemented
> try
>    {
>      while (true)
>        lock.wait();
>    }
>  catch (InterruptedException e)
>    {
>    }
> 
> HTH and Sorry in case that I miss something. ;-)
> Bjoern

Some additional info from *sync.java*

  * Main interface for locks, gates, and conditions.
  * Sync objects isolate waiting and notification for particular
  * logical states, resource availability, events, and the like that are
  * shared across multiple threads. Use of Syncs sometimes
  * (but by no means always) adds flexibility and efficiency
  * compared to the use of plain java monitor methods
  * and locking, and are sometimes (but by no means always)
  * simpler to program with.

Regards, Bjoern