Thanks, this looks like a somewhat interesting pattern. Looking at it, things quickly get complicated:
I need to loop, so I'll wrap it in a method, calling it recursively. I don't want to call doAsync when bytes === null. I can't "kick" when bytes === null, since I get an infinite recursive loop. Depending on internal stream state, kicking will not always trigger a 'readable' emit, leading to a stall. I really wish this was simpler :-/ On 02/07/2013, at 09.28, Floby <[email protected]> wrote: > I'd use some kind of withReadable(stream, fn) helper > > var bytes = stream.read(2); > doAsync(bytes, function(err, res) { > withReadable(stream, function () { > // stream is readable for sure > }); > }); > > function withReadable(stream, callback) { > stream.once(callback); > stream.read(0); > } > > > On Monday, 1 July 2013 15:23:44 UTC+2, Gil Pedersen wrote: > Hi, > > I have a case where I want to consume a Readable, by: > > 1. Read n bytes. > 2. Process buffer using a function with an async callback. > 3. When callback completes, goto 1. > > I fail to see any simple solution to what I feel must be a somewhat common > use case. The standard "on('readable', function() { this.read(); ... })" > doesn't apply, as I have no way of deferring future 'readable' emits once I > have returned from the handler. > > Can it really be that the most sensible solution is to fall back to the old > API, using pause() and resume()? or have I missed something? > > Regards, > Gil -- -- Job Board: http://jobs.nodejs.org/ Posting guidelines: https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines You received this message because you are subscribed to the Google Groups "nodejs" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nodejs?hl=en?hl=en --- You received this message because you are subscribed to the Google Groups "nodejs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
