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lithdew/pike

Async I/O for Zig
Source code at GitHub https://github.com/lithdew/pike
lithdew/pike.json
{
  "createdAt": "2020-09-28T09:41:06Z",
  "defaultBranch": "master",
  "description": "Async I/O for Zig",
  "fullName": "lithdew/pike",
  "homepage": "",
  "language": "Zig",
  "name": "pike",
  "pushedAt": "2023-03-25T23:18:24Z",
  "stargazersCount": 139,
  "topics": [
    "async",
    "epoll",
    "io",
    "iocp",
    "kqueue",
    "linux",
    "mac",
    "networking",
    "signal",
    "tcp",
    "udp",
    "windows",
    "zig"
  ],
  "updatedAt": "2025-10-27T11:27:24Z",
  "url": "https://github.com/lithdew/pike"
}

pike

Section titled “pike”

A minimal cross-platform high-performance async I/O library written in Zig.

Features

Section titled “Features”
  • Reactor/proactor-based I/O notification support
    • epoll (linux)
    • kqueue (darwin)
    • i/o completion ports (windows)
  • Async POSIX socket support
    • bind, listen, connect, accept
    • read, recv, recvFrom
    • write, send, sendTo
    • get/set socket options
  • Async Windows socket support
    • bind, listen, connect, accept
    • read, recv, recvFrom
    • write, send, sendTo
    • get/set socket options
  • Async signal support
    • signalfd for epoll (linux)
    • EVFILT_SIGNAL for kqueue (darwin)
    • SetConsoleCtrlHandler for i/o completion ports (windows)
  • Async event support
    • sigaction (posix)
    • SetConsoleCtrlHandler (windows)

Design

Section titled “Design”

Notifier

Section titled “Notifier”

A Notifier notifies of the completion of I/O events, or of the read/write-readiness of registered file descriptors/handles.

Should a Notifier report the completion of I/O events, it is designated to wrap around a proactor-based I/O notification layer in the operating system such as I/O completion ports on Windows.

Should a Notifier report the read/write-readiness of registered file descriptors/handles, it is designated to wrap around a reactor-based I/O notification layer in the operating system such as epoll on Linux, or kqueue on Darwin-based operating systems.

The Notifier’s purpose is to drive the execution of asynchronous I/O syscalls upon the notification of a reactor/proactor-based I/O event by dispatching suspended asynchronous function frames to be resumed by a thread pool/scheduler (e.g. kprotty/zap).

Handle

Section titled “Handle”

A Handle’s implementation is specific to a Notifier implementation, though overall wraps around and represents a file descriptor/handle in a program.

Subject to the Notifier implementation a Handle’s implementation falls under, state required to drive asynchronous I/O syscalls through a Handle is kept inside a Handle.

An example would be an intrusive linked list of suspended asynchronous function frames that are to be resumed upon the recipient of a notification that a file descriptor/handle is ready to be written to/read from.