On 2012-02-24, Peter Bigot <[email protected]> wrote:
> On Fri, Feb 24, 2012 at 10:09 AM, N. Coesel <[email protected]> wrote:
>> At 16:37 24-2-2012, Grant Edwards wrote:
>>>On 2012-02-24, steve ayer <[email protected]> wrote:
>>>
>>>> not necessarily. you can certainly provide a device with a seed
>>>> timestamp that will carry through an app's runtime.
>>>
>>>What happens when the app is idle and the processor sleeps with the
>>>clock shut down?
>>
>> You work around that. Maybe a hardware RTC? IMHO there is very little
>> point in trying to argue time and date functions are irrelevant to a
>> microcontroller environment.
I'm not arguing that they're irrelvent, I'm just wondering if it makes
sense to talk about trying to write a universal gettimeofday()
function for inclusion in the library.
>> A lot of devices do need to keep track of date & time. Instead of
>> re-inventing the wheel its better to use a different (small) C
>> library which has these functions and stay Posix compliant.
>
> Agreed; the underlying function might have to be user-provided just
> as putchar is for msp430-libc, but the API should be standard.
I'm not sure I see the point of the extra layer. Are there other
library functions besides gettimeofday() that would call the
underlying, user-provided function-that-isnt-gettimeofday?
--
Grant Edwards grant.b.edwards Yow! I want to dress you
at up as TALLULAH BANKHEAD and
gmail.com cover you with VASELINE and
WHEAT THINS ...
------------------------------------------------------------------------------
Virtualization & Cloud Management Using Capacity Planning
Cloud computing makes use of virtualization - but cloud computing
also focuses on allowing computing to be delivered as a service.
http://www.accelacomm.com/jaw/sfnl/114/51521223/
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