Re: gettimeofday

Re: gettimeofday

[borota]

What I did was download the Linux man pages from The Linux Documentation 
Project 
(http://www.ibiblio.org/pub/Linux/docs/LDP/man-pages/man-pages-1.55.tar.gz)
'tar zxvf man-pages-1.55.tar.gz' them and then copy man2 and man4 to 
C:\cygwin\usr\man (/usr/man/) 

Greg 

_____________________________________________
Hi, 

   I want read the manual of the C++ function gettimeofday. But I can't
find it. I'm not sure whether I installed it or not. Can somebody help me?
Thanks. 

Best wishes,
Peng

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Re: gettimeofday

[Brian Ford]

On Sat, 28 Feb 2004, Tim Prince wrote:

> The implementation used by cygwin doesn't set the fractional seconds
> fields, so you must fall back on the Windows API for milliseconds.
>
and
> The cygwin specific code in the g77 date_and_time() source code shows use
> of the Windows API call to compensate for this lack in cygwin
> gettimeofday().
>
I think your information may be out-of-date.  gettimeofday()
appears to currently have approximately one to two millisecond resolution
on XP.  What do you see?

-- 
Brian Ford
Senior Realtime Software Engineer
VITAL - Visual Simulation Systems
FlightSafety International
Phone: 314-551-8460
Fax:   314-551-8444

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Re: gettimeofday

[Tim Prince]

At 11:00 PM 2/28/2004, Peng Yu wrote:

>What is AFAIK?
>How I can fall back on the Windows API?

The cygwin specific code in the g77 date_and_time() source code shows use 
of the Windows API call to compensate for this lack in cygwin 
gettimeofday().  http://cygwin.com/acronyms/    Way back in the archives 
are far more knowledgeable suggestions than I could give on studying the 
Windows API functions as implemented for cygwin.


Tim Prince 


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Re: gettimeofday

[Peng Yu]

What is AFAIK?
How I can fall back on the Windows API?

Peng
----- Original Message -----
From: "Tim Prince" <tprince@computer.org>
To: "Peng Yu" <yupeng_@hotmail.com>; <cygwin@cygwin.com>
Sent: Saturday, February 28, 2004 10:54 PM
Subject: Re: gettimeofday


> At 09:53 PM 2/28/2004, Peng Yu wrote:
>
> >Hi,
> >
> >     I want read the manual of the C++ function gettimeofday. But I can't
> >find it. I'm not sure whether I installed it or not. Can somebody help
me?
> >Thanks.
>
> Not part of C++ AFAIK.  It's a posix function with C binding.  Apparently,
> there's no cygwin specific documentation other than source code.  The
> implementation used by cygwin doesn't set the fractional seconds fields,
so
> you must fall back on the Windows API for milliseconds.
>
>
> Tim Prince
>
>

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Re: gettimeofday

[Tim Prince]

At 09:53 PM 2/28/2004, Peng Yu wrote:

>Hi,
>
>     I want read the manual of the C++ function gettimeofday. But I can't
>find it. I'm not sure whether I installed it or not. Can somebody help me?
>Thanks.

Not part of C++ AFAIK.  It's a posix function with C binding.  Apparently, 
there's no cygwin specific documentation other than source code.  The 
implementation used by cygwin doesn't set the fractional seconds fields, so 
you must fall back on the Windows API for milliseconds.


Tim Prince 


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Re: gettimeofday

[Brian Dessent]

Peng Yu wrote:

>     I want read the manual of the C++ function gettimeofday. But I can't
> find it. I'm not sure whether I installed it or not. Can somebody help me?

That function is a C function, and it's part of libc, the standard C
library.  "info libc" is a good place to start.  However, there's not
much more than a mention of it in the Cygwin libc texinfo system, so you
will then want to look elsewhere.

This is a standard posix library function, so you can look at the SuSv3
standard definition:
http://www.opengroup.org/onlinepubs/007904975/functions/gettimeofday.html
... as well as manpages for common unix platforms, such as FreeBSD:
http://www.freebsd.org/cgi/man.cgi?query=gettimeofday&sektion=2
... or Linux:
http://www.gnu.org/software/libc/manual/html_node/High-Resolution-Calendar.html
... or Solaris:
http://docs.sun.com/db/doc/816-0213/6m6ne382d?a=view

Brian

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gettimeofday

[Peng Yu]

Hi,

    I want read the manual of the C++ function gettimeofday. But I can't
find it. I'm not sure whether I installed it or not. Can somebody help me?
Thanks.

Best wishes,
Peng

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