Re: non-blocking socket operations...
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- Subject: Re: non-blocking socket operations...
- From: Mike Pall <mikelu-0406@...>
- Date: 2004年6月19日 09:12:03 +0200
Hi,
Diego wrote:
> That said, the beta version already supports setting a
> timeout before calling connect and it works fine.
While we are at it: I noticed that Luasocket does not put accepted sockets
into non-blocking mode. Excerpt from the accept(2) man-page:
: [...] Note that any per file descriptor flags (everything that can be set
: with the F_SETFL fcntl, like non blocking or async state) are not
: inherited across an accept. [...]
Usually you never notice since Luasocket does a select() just before
every recv/send. But this is not sufficient. The syscall will block
if you are sending more data than the internal socket buffer can hold.
Patch against luasocket-2.0-alpha below.
Bye,
Mike
*** tcp.c.orig Sat Aug 16 02:14:15 2003
--- tcp.c Sat Jun 19 08:22:59 2004
***************
*** 214,219 ****
--- 214,220 ----
}
} else break;
}
+ sock_setnonblocking(&client->sock);
/* initialize remaining structure fields */
io_init(&client->io, (p_send) sock_send, (p_recv) sock_recv, &client->sock);
tm_init(&client->tm, -1, -1);