Re: [ANNOUNCE]: LuaSocket 2.0 beta
[
Date Prev][
Date Next][
Thread Prev][
Thread Next]
[
Date Index]
[
Thread Index]
- Subject: Re: [ANNOUNCE]: LuaSocket 2.0 beta
- From: Daniel Quintela <danielq@...>
- Date: 2004年6月19日 12:36:38 -0300
Hi Diego:
I like very much the setfd method added in 2.0, but...
Let me show the following scenery:
two Lua States ( L1 and L2) in two different OS threads.
thread 1:
while true do
local skt = sskt:accept( )
local fd = skt:getfd( )
SendTheFileDescriptorToThread2( fd)
skt:close( )
end
thread 2:
while true do
local fd = ReceiveTheFileDescriptorFromThread1( )
local skt = socket.tcp( )
skt:setfd( fd) -- *
... -- something to do
end
The fd at * is dead after the skt:close of the first thread.
Also, at * we are "replacing" the fd in the socket object, without freeing
it, that is, wasting OS resources.
First problem can be worked around setting the fd to INVALID_SOCKET before
skt:close( ).
But for the second problem, I suggest to add a socket_destroy ( in tcp.c )
on the current OS fd before setting the new one.
Despite this multithreading problem, I like the new structure of the library
and I am planning to integrate support for IBM WebSphere MQ ( formerly
MQSeries).
Thanks,
Daniel
----- Original Message -----
From: <diego@tecgraf.puc-rio.br>
To: "Lua list" <lua@bazar2.conectiva.com.br>
Sent: Friday, June 18, 2004 6:36 PM
Subject: [ANNOUNCE]: LuaSocket 2.0 beta
> Hi all,
>
> I am glad to finally release LuaSocket 2.0 beta:
> ...