问题
关注LuaSocket
Introduction我设法让服务器运行。我还设法从客户端连接。但是,我注意到服务器脚本冻结,直到server:accept()
获得连接。
研究
LuaSocket
Reference指定:
使用settimeout方法或接受可能阻止,直到另一个客户端显示。
这甚至包含在示例代码中。但是,在client:settimeout(10)
之后调用local client = server:accept()
,因此脚本在到达此点之前就会被阻止。
我读到这可以通过多线程来解决,但这似乎是夸大其词。
问题
client:receive()
(服务器端)和tcp:receive()
(客户端)(或client:settimeout(10)
负责)的类似问题?代码
服务器(来自LuaSocket
Introduction)
-- load namespace
local socket = require("socket")
-- create a TCP socket and bind it to the local host, at any port
local server = assert(socket.bind("*", 0))
-- find out which port the OS chose for us
local ip, port = server:getsockname()
-- print a message informing what's up
print("Please telnet to localhost on port " .. port)
print("After connecting, you have 10s to enter a line to be echoed")
-- loop forever waiting for clients
while 1 do
-- wait for a connection from any client
local client = server:accept()
-- make sure we don't block waiting for this client's line
client:settimeout(10)
-- receive the line
local line, err = client:receive()
-- if there was no error, send it back to the client
if not err then client:send(line .. "\n") end
-- done with client, close the object
client:close()
end
客户端(跟this answer)
local host, port = "127.0.0.1", 100
local socket = require("socket")
local tcp = assert(socket.tcp())
tcp:connect(host, port);
--note the newline below
tcp:send("hello world\n");
while true do
local s, status, partial = tcp:receive()
print(s or partial)
if status == "closed" then break end
end
tcp:close()
答案 0 :(得分:2)
您应该可以在致电server:accept()
之前使用server:timeout():
server:settimeout(2)
local client, err = server:accept()
print(client, err)
如果2秒内没有请求,我会打印nil timeout
。