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多线程的不工作后下面是rudy.erl代码:一个简单的网络服务器切换二郎
-module(rudy).
-export([init/1,handler/1,request/1,reply/2, start/1, stop/0]).
start(Port) ->
register(rudy, spawn(fun() ->
init(Port) end)).
stop() ->
exit(whereis(rudy), "time to die").
init(Port) ->
Opt = [list, {active, false}, {reuseaddr, true}],
case gen_tcp:listen(Port, Opt) of % opens a listening socket
{ok, Listen} ->
handler(Listen),
gen_tcp:close(Listen), % close the socket
ok;
{error, _Error} -> error
end.
handler(Listen) ->
case gen_tcp:accept(Listen) of % listen to the socket
{ok, Client} ->
request(Client),
gen_tcp:close(Client),
handler(Listen);
{error, _Error} -> error
end.
request(Client) ->
Recv = gen_tcp:recv(Client, 0),
case Recv of
{ok, Str} ->
Request = http:parse_request(Str),
%% spawn(rudy, reply, [Client, Request]);
reply(Client, Request);
{error, Error} ->
io:format("rudy: error: ~w~n", [Error])
end.
reply(Client, {{get, URI, _}, _, _}) ->
timer:sleep(40),
Response = http:ok(URI),
gen_tcp:send(Client, Response),
gen_tcp:close(Client).
如果我执行rudy:start(8027)
,它会正常工作通过访问http://localhost:8027/,但如果我将reply(Client, Request);
转换为spawn(rudy, reply, [Client, Request]);
,则无法访问前一个URL,并且不会将错误输出到命令行。
这里有什么可能出现的问题?提前致谢。
谢谢,它的工作原理:] – Judking
另一个问题弹出我的,你可以看看这个http://stackoverflow.com/questions/32416651/simulation-of-thread-pool-for-a-web-服务器实现逐二郎-犯规工作?多谢兄弟! – Judking