Hi curlpp geek:
I read the source code of the example05.cpp(Function functor for
WriteFunction example), the callback WriteMemoryCallback must be
declared static, otherwise it won't link...
So it acts like a class member use a static function pointer only
based on curl but not curlpp, such as
static size_t
WriteFunction(char *ptr, size_t size, size_t nmemb, std::string *stream)
{
if (stream == NULL)
{
return 0;
}
stream->append(ptr, size * nmemb);
cout << ptr << endl;
return size * nmemb;
}
void *
CGI::Print()
{
curl_easy_setopt(this->curl, CURLOPT_WRITEDATA, &this->buffer);
curl_easy_setopt(this->curl, CURLOPT_WRITEFUNCTION, WriteFunction);
return NULL;
}
When I even know the callback functor can not use a member function
pointer, I still modified the example05.cpp to see whether it work or
not, such as:
size_t
Callback::WriteMemoryCallback(char* ptr, size_t size, size_t nmemb)
{
size_t realsize = size * nmemb;
this->m_pBuffer = (char*) this->Realloc(this->m_pBuffer,
this->m_Size + realsize);
if (this->m_pBuffer == NULL) {
realsize = 0;
}
memcpy(&(this->m_pBuffer[this->m_Size]), ptr, realsize);
this->m_Size += realsize;
return realsize;
};
void Callback::print()
{
cURLpp::Types::WriteFunctionFunctor functor(this->*WriteMemoryCallback);
cURLpp::Options::WriteFunction *test = new
cURLpp::Options::WriteFunction(functor);
this->request.setOpt(test);
this->request.perform();
std::cout << "Content: " << std::endl << this->m_pBuffer << std::endl;
}
And yes '((Callback*)this)->Callback::WriteMemoryCallback' cannot be
used as a member pointer, since it is of type '<unresolved overloaded
function type>'
So the C++ wrapper of curl still can not make callback functor to use
the member function pointer, right?
sirtoozee
--
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boulders and over waterfalls. Gradually the river grows wider, the
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