Subject: Re: [boost] Cross-platform date/time problems
From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2009-11-02 14:37:31
Zachary Turner wrote:
> On Mon, Nov 2, 2009 at 12:38 PM, Andrey Semashev
> <andrey.semashev_at_[hidden]>wrote:
>
>> Zachary Turner wrote:
>>
>> Anyway, I don't think that bringing Windows-specific code to other
>>>> platforms is a good idea. If you want cross-platform code, use
>>>> cross-platform types, such as time_t, ptime or local_time.
>>>>
>>>>
>>>> That's just it, I'm trying to use ptime.
>> Then why not simply send ptime over the network?
>
>
> Using what method? by sending the result of ptime::ticks()? If so, how do
> I reconstruct a ptime from the result of this?
IIRC, currently you have to separately serialize date and time. The date
is simply a number of days since the base date. The time has ticks() and
ticks_per_second() or something like that. So there is no problem to
reconstruct the correct ptime on another machine, even with different
time resolution capability.
> Also, the server that this
> information is being sent to is written in Java, and it needs to be able to
> understand whatever is sent across (i.e. extract day/month/year/etc
> information)
I don't see a problem with it. Anyway, I'm more inclined to improve
ptime portability instead of porting FILETIME.