mirror of
https://github.com/lunarmodules/luasocket.git
synced 2024-07-01 10:59:46 +02:00
58096449c6
Implemented new distribution scheme. Select is now purely C. HTTP reimplemented seems faster dunno why. LTN12 functions that coroutines fail gracefully.
82 lines
2.4 KiB
Lua
82 lines
2.4 KiB
Lua
-----------------------------------------------------------------------------
|
|
-- Select sample: simple text line server
|
|
-- LuaSocket sample files.
|
|
-- Author: Diego Nehab
|
|
-- RCS ID: $Id$
|
|
-----------------------------------------------------------------------------
|
|
socket = require("socket")
|
|
host = host or "*"
|
|
port1 = port1 or 8080
|
|
port2 = port2 or 8181
|
|
if arg then
|
|
host = arg[1] or host
|
|
port1 = arg[2] or port1
|
|
port2 = arg[3] or port2
|
|
end
|
|
|
|
server1 = socket.try(socket.bind(host, port1))
|
|
server2 = socket.try(socket.bind(host, port2))
|
|
server1:settimeout(1) -- make sure we don't block in accept
|
|
server2:settimeout(1)
|
|
|
|
io.write("Servers bound\n")
|
|
|
|
-- simple set implementation
|
|
-- the select function doesn't care about what is passed to it as long as
|
|
-- it behaves like a table
|
|
function newset()
|
|
local reverse = {}
|
|
local set = {}
|
|
setmetatable(set, { __index = {
|
|
insert = function(set, value)
|
|
table.insert(set, value)
|
|
reverse[value] = table.getn(set)
|
|
end,
|
|
remove = function(set, value)
|
|
table.remove(set, reverse[value])
|
|
reverse[value] = nil
|
|
end,
|
|
}})
|
|
return set
|
|
end
|
|
|
|
set = newset()
|
|
|
|
io.write("Inserting servers in set\n")
|
|
set:insert(server1)
|
|
set:insert(server2)
|
|
|
|
while 1 do
|
|
local readable, _, error = socket.select(set, nil)
|
|
for _, input in ipairs(readable) do
|
|
-- is it a server socket?
|
|
if input == server1 or input == server2 then
|
|
io.write("Waiting for clients\n")
|
|
local new = input:accept()
|
|
if new then
|
|
new:settimeout(1)
|
|
io.write("Inserting client in set\n")
|
|
set:insert(new)
|
|
end
|
|
-- it is a client socket
|
|
else
|
|
local line, error = input:receive()
|
|
if error then
|
|
input:close()
|
|
io.write("Removing client from set\n")
|
|
set:remove(input)
|
|
else
|
|
io.write("Broadcasting line '", line, "'\n")
|
|
writable, error = socket.skip(1, socket.select(nil, set, 1))
|
|
if not error then
|
|
for __, output in ipairs(writable) do
|
|
if output ~= input then
|
|
output:send(line .. "\n")
|
|
end
|
|
end
|
|
else io.write("No client ready to receive!!!\n") end
|
|
end
|
|
end
|
|
end
|
|
end
|