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Re: question about curl_multi_perform, callbacks, and presenting a pull interface

From: Rich Bramante <>
Date: Thu, 23 Aug 2012 18:01:09 -0400

On Thu, Aug 23, 2012 at 2:18 PM, Daniel Stenberg <> wrote:
> On Thu, 23 Aug 2012, Rich Bramante wrote:

>> Question 3: What is the best way to craft an interface like this using
>> curl?
> The best way is to take care of all data you receive. realloc() the buffer
> or use multiple ones.
> --
> /

I had considered this approach but was fearful that in the case where
the server was returning a large amount of data quickly, curl would be
in a constant read-callback loop and and my library would not be able
to return control back out to the caller to start draining the data
possibly causing my library to buffer the entire response in memory.
Since the client can download an arbitrarily large amount of data I
did not pursue this.
List admin:
Received on 2012-08-24