httpd-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Corsix <cor...@www.corsix.org>
Subject Re: mod_wombat and luasocket
Date Fri, 08 Aug 2008 13:11:47 GMT
Seems I was wrong; commenting out that call doesn't make luasocket
load. This still leaves the main question unresolved though; why does
require"socket" cause a blank response (as even a standard error would
be caught by mod_wombat's usage of lua_pcall)?

2008/8/8 Corsix <corsix@www.corsix.org>:
> Hi,
>
> While using mod_wombat and attempting to use luasocket (with require
> "socket"), I get a white screen. Assuming test.lua is:
> -- code --
> function handle(r)
>  r:write "Start\n"
>  require "socket"
>  r:write "Done\n"
> end
> -- end code --
> The expected output when requesting this page via a web browser would give:
> Start
> Done
> If "socket" is changed to "lpeg" (assuming you have LPEG installed),
> or the require line is commented out, then yes, that is the output.
> However, as-is, the response is a blank screen. As far as I can tell,
> the cause is this part of luasocket's usocket.c:
> /* code */
> /*-------------------------------------------------------------------------*\
> * Initializes module
> \*-------------------------------------------------------------------------*/
> int socket_open(void) {
>    /* instals a handler to ignore sigpipe or it will crash us */
>    signal(SIGPIPE, SIG_IGN);
>    return 1;
> }
> /* end code */
> After commenting out the call to signal and recompiling, the above Lua
> code will happily load socket.
>
> Why does commenting out this call cause luasocket to now load, and
> what undesired consequences are there of doing this?
>
> Peter
>

Mime
View raw message