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我正在使用Lua編程語言編寫服務器,並且網絡層基於LuaSocket。如何檢查套接字是否關閉或不在luasocket庫中?
而且我找不到任何方法來檢測插座在其參考手冊除非只是試圖從中讀取數據(它會返回零和字符串「關閉」調用時)關閉與否。
我的代碼如下所示:
local socket = require 'socket'
local server = socket.tcp()
local port = 9527
server:bind('*', port)
local status, errorMessage = server:listen()
if status == 1 then
printf('Server is launched successfully on port %u', port)
else
printf('Server listen failed, error message is %s', errorMessage)
return
end
local sockets = {server}
while true do
local results = socket.select(sockets)
for _, sock in ipairs(results) do
if sock == server then
local s = server:accept()
callback('Connected', s)
table.insert(sockets, s)
printf('%s connected', s:getsockname())
else
-- trying to detect socket is closed
if sock:isClosed() then
callback('Disconnected', sock)
for i, s in ipairs(sockets) do
if s == sock then
table.remove(sockets, i)
break
end
end
printf('%s disconnected', sock:getsockname())
else
callback('ReadyRead', sock)
end
end
end
end
在'while while true'循環內調用'server:settimeout'。 – hjpotter92