NET

Net is a High-level & Efficient Modern C++ library for Network Programming.

Introduction

It uses standard library functions with no other dependencies and provides a safer yet expressive version of original Berkeley Sockets API. Common mistakes are abstracted away giving a boost in productivity for library user.

#include "socket.hpp"
#include <iostream>

using namespace net;

int main()
{
    try {
        Socket s(Domain::IPv4, Type::TCP);
        s.start("127.0.0.1", 24000);
        while (true) {
            const auto peer = s.accept();
            const auto msg  = peer.recv(15);
            std::cout << msg << '\n';
        }
    } catch (std::exception &e) {
        std::cerr << e.what() << '\n';
    }
}

Getting Started

You don't need anything else other than a supported platform, a C++14 compiler and a few seconds to spare. The library is currently uses meson build system so first class dependency management is included for those using same. Otherwise just git clone the library, and pass the includes and sources to your compiler and you're good to go.

Documentation

Please take a look inside docs/ directory to find API and other documentation.

Build with Meson

git clone https://github.com/c10k/net.git
cd net
mkdir build && cd build
meson .. && ninja  # This will also create a dynamic lib

Testing with GTest

git clone https://github.com/c10k/net.git
cd net
mkdir build && cd build
meson .. && ninja
./test/testexe

Examples

You can see more examples under examples/ directory.

Echo TCP server

#include "socket.hpp"
#include <iostream>

using namespace net;

int main()
{
    try {
        Socket s(Domain::IPv4, Type::TCP);
        s.start("127.0.0.1", 24000);
        while (true) {
            const auto peer = s.accept();
            const auto msg  = peer.recv(15);
            std::cout << msg << '\n';
        }
    } catch (std::exception &e) {
        std::cerr << e.what() << '\n';
    }
}

Hello World TCP client

#include "socket.hpp"
#include <iostream>

using namespace net;

int main()
{
	try {
		Socket s(Domain::IPv4, Type::TCP);
		s.connect("0.0.0.0", 24000);
		s.send("Hello World!");
	} catch (std::exception &e) {
		std::cerr << e.what() << '\n';
	}
}

Concurrent TCP server with fork

#include "socket.hpp"
#include <iostream>
#include <signal.h>

using namespace net;

int main()
{
	try {
		signal(SIGCHLD, SIG_IGN);
		Socket s(Domain::IPv4, Type::TCP);
		s.start("127.0.0.1", 24001);

		while (true) {
			const auto peer = s.accept();
			if (!fork()) {
				std::cout << peer.recv(10) << '\n';
				return 0;
			}
		}
	} catch (std::exception &e) {
		std::cerr << e.what() << '\n';
	}
}

TODO

• Proper namespacing in socket options
• Add more unit tests, increase coverage
• Add examples for non-blocking socket operations
• Add support for more protocols other than TCP, UDP, UNIX
• Add benchmarks against popular alternatives