@hackage Z-IO0.1.1.1

Simple and high performance IO toolkit for Haskell

Z-IO

Linux Build Status

This package provides basic IO operations:

  • IO resource management, resource pool
  • File system
  • Network: DNS, TCP, UDP and IPC
  • Buffered input and output
  • High performance logger
  • High performance timer

Dependencies

On *nix system, libuv >= 1.32 are required to build this library, e.g.

# on ubuntu
sudo apt-get install libuv1 libuv1-dev
# on mac
brew install libuv

Example usage

> :set -XOverloadedStrings  
> import Z.IO.Network
> import Z.IO.Resource
> import Z.IO.Buffered
> 
> -- call getAddrInfo to perform DNS
> head <$> getAddrInfo Nothing "www.bing.com" "http"
AddrInfo {addrFlags = [AI_ADDRCONFIG,AI_V4MAPPED], addrFamily = SocketFamily 2, addrSocketType = SocketType 1, addrProtocol = ProtocolNumber 6, addrAddress = 204.79.197.200:80, addrCanonName = }
>
> import qualified Z.Data.Text as T
> -- send a simple HTTP request
> :{
| let addr = SocketAddrInet 80 (tupleToInetAddr (13,107,21,200))
| -- addr = ipv4 "13.107.21.200" 80
| in withResource (initTCPClient defaultTCPClientConfig{ tcpRemoteAddr = addr}) $ \ tcp -> do
|     i <- newBufferedInput defaultChunkSize tcp 
|     o <- newBufferedOutput defaultChunkSize tcp
|     writeBuffer o "GET http://www.bing.com HTTP/1.1\r\nHost: www.bing.com\r\n\r\n"
|     flushBuffer o
|     readBuffer i >>= pure . T.validate
| :}
"HTTP/1.1 200 OK\r\nDate: Sat, 19 Sep 2020 06:11:08 GMT\r\nContent-Length: 0\r\n\r\n"
>
> -- Start a TCP echo server, use @nc -v localhost 8080@ to test
> :{
| startTCPServer defaultTCPServerConfig{
| tcpListenAddr = SocketAddrInet 8080 inetLoopback,
| tcpServerWorker = \ tcp -> do
|     i <- newBufferedInput defaultChunkSize tcp 
|     o <- newBufferedOutput defaultChunkSize tcp
|     forever $ readBuffer i >>= writeBuffer o >> flushBuffer o
| }
| :}

Dev guide

  • GHC(>=8.10.2)
  • cabal-install(>=3.4) 
# get code
git clone --recursive git@github.com:haskell-Z/z-io.git 
cd z-io
# build
cabal build
# test
cabal run Z-IO-Test
# install 
cabal install
# generate document
cabal haddock