I'm trying to run this code using c++11 std::thread and the SFML library for networking, however I just cant get it to build. I'm pretty sure it has something to do with how I'm setting up the compiler, but I don't know... How can I get this to work? I've been messing about trying to get this to work, going through tutorials and such for hours now, so I have turned to Stack Overflow for answers. I'm using the code::blocks IDE and the x32-4.8.1-posix-dwarf-rev5 compiler on a windows7 64-bit machine.
#include <iostream>
#include <thread>
#include <string>
#include <SFML/System.hpp>
#include <SFML/Network.hpp>
using namespace std;
void doNetwork() {
cout << "Starting..." << endl;
sf::TcpListener listener;
listener.listen(88);
// Wait for a connection
sf::TcpSocket socket;
listener.accept(socket);
cout << "New client connected: " << socket.getRemoteAddress() << endl;
// Receive a message from the client
char buffer[1024];
size_t received = 0;
socket.receive(buffer, sizeof(buffer), received);
cout << "The client said: " << buffer << endl;
// Send an answer
string message = "Welcome, client";
socket.send(message.c_str(), message.size() + 1);
}
int main()
{
thread task(doNetwork);
task.join();
return 0;
}
This is what the build debug log is saying:
-------------- Build: Debug in bang ---------------
Compiling: main.cpp
Linking console executable: bin\Debug\bang.exe
obj\Debug\main.o: In function `Z9doNetworkv':
C:/Users/user/CppProjects/bang/main.cpp:12: undefined reference to `sf::TcpListener::TcpListener()'
C:/Users/user/CppProjects/bang/main.cpp:13: undefined reference to `sf::TcpListener::listen(unsigned short)'
C:/Users/user/CppProjects/bang/main.cpp:16: undefined reference to `sf::TcpSocket::TcpSocket()'
C:/Users/user/CppProjects/bang/main.cpp:17: undefined reference to `sf::TcpListener::accept(sf::TcpSocket&)'
C:/Users/user/CppProjects/bang/main.cpp:18: undefined reference to `sf::TcpSocket::getRemoteAddress() const'
C:/Users/user/CppProjects/bang/main.cpp:18: undefined reference to `sf::operator<<(std::ostream&, sf::IpAddress const&)'
C:/Users/user/CppProjects/bang/main.cpp:23: undefined reference to `sf::TcpSocket::receive(void*, unsigned int, unsigned int&)'
C:/Users/user/CppProjects/bang/main.cpp:28: undefined reference to `sf::TcpSocket::send(void const*, unsigned int)'
obj\Debug\main.o: In function `ZN2sf11TcpListenerD1Ev':
C:/Users/user/CppProjects/SFML-2.1/include/SFML/Network/TcpListener.hpp:43: undefined reference to `sf::Socket::~Socket()'
obj\Debug\main.o: In function `ZN2sf9TcpSocketD1Ev':
C:/Users/user/CppProjects/SFML-2.1/include/SFML/Network/TcpSocket.hpp:46: undefined reference to `sf::Socket::~Socket()'
collect2.exe: error: ld returned 1 exit status
Process terminated with status 1 (0 minutes, 0 seconds)
10 errors, 0 warnings
The settings I am using with the compiler:
Compiler Flags:
-std=C++0x
Other options:
-std=gnu++0x -U__STRICT_ANSI__
defines:
SFML_STATIC
Linker Settings:
sfml-system-s-d
sfml-network-s-d
Search Directories - Compiler:
C:\Users\user\CppProjects\SFML-2.1\include
C:\Users\user\CppProjects\bang\include
Search Directories - Linker:
C:\Users\user\CppProjects\SFML-2.1\lib\
Toolchain Executables:
-Compilers instalation dir:
C:\Program Files (x86)\mingw-builds\x32-4.8.1-posix-dwarf-rev5\mingw32
-C compiler:
i686-w64-mingw32-gcc-4.8.1.exe
-C++ Compiler:
i686-w64-mingw32-c++.exe
-Linker for dynamic libs:
i686-w64-mingw32-c++.exe
-Linker for static libs:
ar.exe
-Debugger:
gdb.exe
-Resource Compiler:
windres.exe
-Make Program:
mingw32-make.exe
