[Cppcms-users] Can I create an asynchronous socket connection from within an asynchronously mounted application?

[Dietrich M. <die...@gm...>]

Hello, I try to create a socket connection from within my application and I
seem to fail.
I tried to setup the code like in this boost asio sample for an
asynchronous http client (
http://www.boost.org/doc/libs/1_51_0/doc/html/boost_asio/example/http/client/async_client.cpp)
without the resolving part.
Btw this resolver is pretty useful. Can it be integrated into booster aio?

*//the  call
socket->async_connect(endpoint, std::bind(&ClassX::onConnected, this,
std::placeholders::_1));

//the first callback
void ClassX::onConnected(const booster::system::error_code &e) {
  if(!e)
    //print some member of ClassX
    //...
    //and write something to the socket
    socket->async_write(buff, std::bind(&ClassX::onWritten, this,
std::placeholders::_1));
}

//onWritten callback
//onRead callback

*Now the problem is that as soon as I access a class member in any
callback, the result is a segmentation fault.
If I pass *shared_from_this()* and not *this *I get a assertion error in *
enable_shared_from_this.h:56* that *p.get() == this* is not true.
I think the problems are related to some synchronisation issues between the
main and the application thread, as the synchronous calls work.
Please give me some advice how I correctly use the socket in my application.

greetings