Sample module for a minimal chat server using Websockets on port 8088

Redefined classes

redef class Sys

websocket :: websocket_server $ Sys

The main class of the program.

All class definitions

redef class Sys

websocket :: websocket_server $ Sys

The main class of the program.
package_diagram websocket::websocket_server websocket_server websocket websocket websocket::websocket_server->websocket socket socket websocket->socket sha1 sha1 websocket->sha1 base64 base64 websocket->base64 crypto crypto websocket->crypto ...socket ... ...socket->socket ...sha1 ... ...sha1->sha1 ...base64 ... ...base64->base64 ...crypto ... ...crypto->crypto a_star-m a_star-m a_star-m->websocket::websocket_server


module abstract_collection

core :: abstract_collection

Abstract collection classes and services.
module abstract_text

core :: abstract_text

Abstract class for manipulation of sequences of characters
module array

core :: array

This module introduces the standard array structure.
module base64

base64 :: base64

Offers the base 64 encoding and decoding algorithms
module basic_ciphers

crypto :: basic_ciphers

Basic cryptographic ciphers and utilities.
module bitset

core :: bitset

Services to handle BitSet
module bytes

crypto :: bytes

Mix of utilities and services related to bytes
module bytes

core :: bytes

Services for byte streams and arrays
module circular_array

core :: circular_array

Efficient data structure to access both end of the sequence.
module codec_base

core :: codec_base

Base for codecs to use with streams
module codecs

core :: codecs

Group module for all codec-related manipulations
module collection

core :: collection

This module define several collection classes.
module core

core :: core

Standard classes and methods used by default by Nit programs and libraries.
module crypto

crypto :: crypto

Mix of all things cryptography-related
module environ

core :: environ

Access to the environment variables of the process
module error

core :: error

Standard error-management infrastructure.
module exec

core :: exec

Invocation and management of operating system sub-processes.
module file

core :: file

File manipulations (create, read, write, etc.)
module fixed_ints

core :: fixed_ints

Basic integers of fixed-precision
module fixed_ints_text

core :: fixed_ints_text

Text services to complement fixed_ints
module flat

core :: flat

All the array-based text representations
module gc

core :: gc

Access to the Nit internal garbage collection mechanism
module hash_collection

core :: hash_collection

Introduce HashMap and HashSet.
module iso8859_1

core :: iso8859_1

Codec for ISO8859-1 I/O
module kernel

core :: kernel

Most basic classes and methods.
module list

core :: list

This module handle double linked lists
module math

core :: math

Mathematical operations
module native

core :: native

Native structures for text and bytes
module numeric

core :: numeric

Advanced services for Numeric types
module protocol

core :: protocol

module queue

core :: queue

Queuing data structures and wrappers
module range

core :: range

Module for range of discrete objects.
module re

core :: re

Regular expression support for all services based on Pattern
module ropes

core :: ropes

Tree-based representation of a String.
module sha1

sha1 :: sha1

Provides methods to compute the SHA1 hash of a String
module socket

socket :: socket

Socket services
module socket_c

socket :: socket_c

Low-level socket functionalities
module sorter

core :: sorter

This module contains classes used to compare things and sorts arrays.
module stream

core :: stream

Input and output streams of characters
module text

core :: text

All the classes and methods related to the manipulation of text entities
module time

core :: time

Management of time and dates
module union_find

core :: union_find

union–find algorithm using an efficient disjoint-set data structure
module utf8

core :: utf8

Codec for UTF-8 I/O
module xor_ciphers

crypto :: xor_ciphers

XOR oriented cryptographic ciphers and utilities.


module websocket

websocket :: websocket

Adds support for a websocket connection in Nit


module a_star-m


# Sample module for a minimal chat server using Websockets on port 8088
module websocket_server is example

import websocket

var sock = new WebsocketServer.with_infos(8088, 1)

var msg: String

if sock.listener.closed then
	print sys.errno.strerror

var cli: WebsocketConnection

while not sock.closed do
	cli = sock.accept
	while cli.connected do
		if sys.stdin.poll_in then
			msg = gets
			printn "Sending message : {msg}"
			if msg == "disconnect" then cli.close
		if cli.can_read(10) then
			msg = ""
			while cli.can_read(0) do msg +=
			if msg != "" then print msg