luaffisocket's Introduction

luaffisocket

A Lua module that makes use of the FFI library to provide bindings to sockets, in a luasocket compatible interface.

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This module was made to take advantage of LuaJIT's FFI library but as long as you have a compatible FFI library for your regular Lua application, it should work.

It contains code from luasocket, with the MIT license. This code extends the sockets themselves to provide HTTP, FTP and other capabilities.

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echosrvr.lua:18: invalid socket

system windows10,luajit2.1
lua code:

package.path = ";./source/?.lua;./source/?/init.lua"

-----------------------------------------------------------------------------
-- UDP sample: echo protocol server
-- LuaSocket sample files
-- Author: Diego Nehab
-----------------------------------------------------------------------------
local socket = require("socket")
host = host or "127.0.0.1"
port = port or 7
if arg then
    host = arg[1] or host
    port = arg[2] or port
end
print("Binding to host '" ..host.. "' and port " ..port.. "...")
udp = assert(socket.udp())
assert(udp:setsockname(host, port)) --Error invalid socket
assert(udp:settimeout(5))
ip, port = udp:getsockname()
assert(ip, port)
print("Waiting packets on " .. ip .. ":" .. port .. "...")
while 1 do
	dgram, ip, port = udp:receivefrom()
	if dgram then
		print("Echoing '" .. dgram .. "' to " .. ip .. ":" .. port)
		udp:sendto(dgram, ip, port)
	else
        print(ip)
    end
end

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