On Wed, 10 Sep 2003, Jerry G. Chiuan wrote:

> I would like to have my own callback function invoked by curl once the data
> is received from server side

I suggest you take this over to the libcurl mailing list, where you'll reach
more libcurl users.

CURLOPT_WRITEFUNCTION is there for you.

> Then I can manipulate the data via A.
>
> - is it doable? or I have to "copy" the data into my buffer? how long does
> the data would be "alive"? when the data would be deleted?

You have to copy the data. When you return from the callback, the buffer will
be re-used for other purposes.

> - Furthermore, who needs to delete the data? curl would do it?

curl deals with its buffers itself, you deal with your buffers! :-)

IMHO, the getinmemory.c example shows one way to do this pretty smoothly:

http://curl.haxx.se/lxr/source/docs/examples/getinmemory.c

-- 
 Daniel Stenberg -- curl: been grokking URLs since 1998
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