Nice, didnt know about that module, thanks :).

On Monday, May 6, 2013 4:51:42 PM UTC+2, Isaac Schlueter wrote:
>
> Benjamin, 
>
> You can probably benefit from the "once" module. 
>
> callback = once(callback) 
> // then just call it whenever you like, only the first call will matter. 
>
>
> On Mon, May 6, 2013 at 5:54 AM, Benjamin Pasero 
> <[email protected] <javascript:>> wrote: 
> > For completness of this thread, here is the code that I am now using 
> with 
> > node 0.8.x: 
> > 
> > var callbackHandled = false; 
> > 
> > var readStream = fs.createReadStream(source); 
> > var writeStream = fs.createWriteStream(target); 
> > 
> > var onError = function(error) { 
> > if (!callbackHandled) { 
> > callbackHandled = true; 
> > callback(error); 
> > } 
> > }; 
> > 
> > readStream.on('error', onError); 
> > writeStream.on('error', onError); 
> > 
> > readStream.on('end', function() { 
> > writeStream.end(function() { 
> > if (!callbackHandled) { 
> > callbackHandled = true; 
> > callback(null); 
> > } 
> > }); 
> > }); 
> > 
> > readStream.pipe(writeStream, {end: false}); 
> > 
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