On Tuesday 24 of November 2009 01:50:02 Dantzler, DeWayne C wrote:
> I'm using libcurl with C++ classes in a single threaded application by
> setting up the curl env in the constructor and invoking cleanup
> operation in the destructor, but I'm having trouble freeing the
> allocated memory. I read the curl documentation and tutorial. What is
> the correct method of freeing resources?

Kamil wrote:

It doesn't matter what programming paradigma are you actually using. Just call
curl_global_init()/curl_easy_cleanup() once per whole program. A singleton might be a good candidate if you like clean object-oriented design?

Then for each curl_easy_init() you should call one curl_easy_cleanup(). You can wrap it to class and call the functions in its ctor/dtor. Or perhaps use cURLpp binding which does the job for you?

Looking at your example again, one thing is clear. You can't call
curl_global_cleanup() before curl_easy_cleanup().

=============================================================
Thanks

I took your suggestions to try a Singleton and it worked!! Placing the calls to curl_global_init() and curl_easy_init() in the ctor of the Singleton and curl_easy_cleanup()/curl_global_cleanup() in the dtor did not result in a crash or memory leaks.
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Received on 2009-11-27