Handling Date, and Time

aapo.talvensaari · 2013-12-30T19:44:31+00:00

Thanks for sharing and merry Christmas :) Am 24.12.2013 20:26, schrieb Bertrand Mansion: > I'd like to announce the release of a small module that displ...

Handling Date, and Time

aapo.talvensaari

Hi,

I looked at OpenResty, and there are some date, and time related functions in ngx.*, like:

- http://wiki.nginx.org/HttpLuaModule#ngx.time

- http://wiki.nginx.org/HttpLuaModule#ngx.now

- http://wiki.nginx.org/HttpLuaModule#ngx.localtime

etc.

It would be a nice thing to have (official?) a time, and date types / libs in framework like OpenResty. This one looks quite nice: http://www.scilua.org/time.html.

Or is there already something in place for this?

Btw. I also started writing a new lib for LibXL (http://www.libxl.com/ - commercial, but nice, and affordable):

https://github.com/bungle/lua-resty-libxl (Basic APIs are implemented so far, more to come - so don't take this as an announcement, yet)

Regards

Aapo

aapo.talvensaari

It would be a nice thing to have (official?) a time, and date types / libs in framework like OpenResty.

This one looks quite nice: http://www.scilua.org/time.html.

Or is there already something in place for this?

I.e. should we just use os.time, os.date, os.difftime when we need to play with date/time, and use ngx.* variants, when we need current time?

agentzh

Hello!

On Mon, Dec 30, 2013 at 9:30 AM, Aapo Talvensaari wrote:
>
> I.e. should we just use os.time, os.date, os.difftime when we need to play
> with date/time, and use ngx.* variants, when we need current time?
>

The ngx.* variants are provided for a reason :) You are recommended to
use the ngx.* time wherever possible because os.time and etc usually
involve expensive system calls and cannot be JIT compiled by LuaJIT
(yet), which can make a big difference in performance.

Regards,
-agentzh

agentzh

Hello!

On Mon, Dec 30, 2013 at 3:44 AM, Aapo Talvensaari wrote:
> It would be a nice thing to have (official?) a time, and date types / libs
> in framework like OpenResty.

Agreed :) It's been on my TODO list for long :)

> This one looks quite nice:
> http://www.scilua.org/time.html.
>

I had a quick peak and this library looks nice. I think we need to
check out its copyright license and test the implementation :)

Best regards,
-agentzh