Socket.cpp | C Socket Class for Windows | Socket library

You seem to have missed that actual answer.

interface is used as a typedef in some windows headers

see What is the "interface" keyword in MSVC?

change the name to iface or something like that

@Vasile, your problem, as @dewaffed told you, is that you are setting the options before the socket has been opened.

I don't know what you are trying to do but I can see that you creating a new socket, which is not open, and setting the properties, that's the problem. The correct way is:

1. Create the Socket
2. Accept the new connection, with the previous socket you've created.
3. Once the acceptor has ended to accept a new connection, the socket has a valid File Descriptor, which is required to set the option over the socket.

Check these links:

https://en.wikipedia.org/wiki/Berkeley_sockets

Modifying boost::asio::socket::set_option, which talks about your exception.

https://www.boost.org/doc/libs/1_77_0/doc/html/boost_asio/tutorial/tutdaytime2.html

EDIT complete and working example based on the server code from the question:

Since TableKeyT inherits NativeTable, you also need to initialize the base class, but since it is an empty class, using {} should be fine.

solved it. I use option -Wl,-Bstatic and -Wl,-Bdynamic to separte static library and dynamic library.

Since you already compiled the library, create an IMPORTED target that references the sdk/include and sdk/src directories as include path:

Your $(OBJS) rule is wrong.

There are (at least) two ways to do this.

You could write a pattern rule and use vpath to locate the sources:

i rebased my fork with the current master branch. Removed all the files in the src directory. Then did a git hard reset. Then ran git pull. Ran the remove build cache script again. Then kicked off another build. Build is working fine again with the current master branch. So i am guessing the issue was with my src directory not being in sync with the fork repo.

Would you inspect carefully the actual command line used for linking, you will find that after libsmoltcp_cpp_interface_rust.a, which has missed symbol, there is no -ldl parameter.

It seems that in your case smoltcp_cpp is an IMPORTED library target, which has libsmoltcp_cpp_interface_rust.a as a link dependency (not as IMPORTED_LOCATION property or so).

While CMake preserves order of the libraries, linked into a single binary (an or another library), order between dependencies of these libraries is not defined.

You need to add -ldl as a link dependency for the smoltcp_cpp target itself: