IODash

Lightweight C++ I/O library for POSIX operation systems

Features

• Fast & lightweight
• RAII
• Header only
• Both sync & async
• Uses very little memory (1MB for 10k TCP conns on x86_64)
• No more Boosted

Supported IO targets

• Regular file (no async so far)
• Socket (TCP, UDP, Unix, Pipe, SocketPair...)
• Serial (/dev/tty*)
• Timer (timerfd on Linux) (WIP)
• ...more to come

Supported event backends

• poll
• epoll
• ...more to come

Requirements

• C++17
• POSIX compatible operation system

Benchmarks

See Benchmarks.

ToDos

• Documentation!!!
• Serial port class
• kqueue support for BSDs
• io_uring support for newer Linux

Usage

#include <IODash.hpp>

using namespace IODash;

SocketAddress<AddressFamily::IPv4> v4_addr("127.0.0.1:8080");
v4_addr.from_string("0.0.0.0");
v4_addr.from_string("0.0.0.0:8888");
v4_addr.port() = 8080;
std::cout << v4_addr.to_string();

SocketAddress<AddressFamily::IPv6> v6_addr("[::1]:8888");
v6_addr.from_string("::");
v6_addr.from_string("[::]:8888");
v6_addr.port() = 8080;
std::cout << v6_addr.to_string();

std::unordered_set<SocketAddress<AddressFamily::IPv4>> addrs;
addrs.insert(v4_addr);

Socket<AddressFamily::IPv4, SocketType::Datagram> socket0; // IPv4 UDP
socket0.create();
socket0.sendto({"127.0.0.1:9999"}, "abcde", 5);

For more examples, see test.cpp and http_test.cpp.

Documentation

TBD

Warning

The API is not stabilized yet.

License

MIT