Hi Venkat,
Thanks for ur response for getting time and date, but yaar, the linux
functions gettimeofday() and localtime() are not running in init_module().
These functions can be used in main() function only, but i want a function
which can be used in init_module also. Can u please write me a chunk of code
in init_module(), which i could run directly.
Also, the function gethrtime() returns value in hrtime_t variable, which
a typedef of 64-bit signed integer. Do u know any format specifier in
RTLinux which can print 64-bit integer value. actually it is only supporting
"%d", which is printing a 4-byte value only.
I am facing a lot of problem yaar. Please write me according to ur
convinience.
Regards,
Narendra Kumar Upadhyay
TATA Consultancy Services - GG2
Ph. : 91- 0124- 6439120, 6439121
Ext. : 122, 213
----- Original Message -----
From: "A V" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, April 13, 2002 12:39 PM
Subject: Re: [rtl] Current time and date in RTLinux
>
> one trickey way is
>
> U get date and time in init_module where u can access
> linux system calls. and record time(nenoseconds) with
> gethrtime() also there.
> Then whereever u want date and time again read time
> with gethrtime and calculate elapsed time from ur
> program startup. Then convert these nanooseconds to
> seconds and add it to time. The pseudo code look like
> this. I hope it will work.
>
>
> hrtime_t start_time;
>
> ur_real_time_thread()
> {
> hrtime_t current_time;
> hrimte_t elapsed_time;
> current_time = gethrtime();
> elapsed_time = current_time-start_time;
> convert elapsed time to seconds
> add these seconds to ur actual date and time
> recorded in init_module.
> }
>
> init_module()
> {
> get date and time with linux syscalls;
> start_time = gethrtime();
> }
>
> --- Norm Dresner <[EMAIL PROTECTED]> wrote:
> > Have you tried
> > do_gettimeofday()
> >
> > Norm
> > ----- Original Message -----
> > From: Narendra Kumar Upadhyay
> > To: [EMAIL PROTECTED]
> > Cc: [EMAIL PROTECTED]
> > Sent: Friday, April 12, 2002 8:07 AM
> > Subject: [rtl] Current time and date in RTLinux
> >
> >
> > Hi,
> > Is there any method to calculate the current
> > time(in hours, minutes and seconds) and date in the
> > kernel module of RTLinux. Actually gettimeofday()
> > and localtime() functions are giving correct time
> > but we can execute these functions in linux only. I
> > want to get time and date during execution of the
> > real-time thread. gethrtime( ) function gives time
> > from system bootup, which can not solve my purpose.
> >
> > Any idea to get the current time and date in
> > kernel module???
> >
> >
> > Regards,
> > Narendra Kumar Upadhyay
> >
> > Ph. : 91- 0124- 6439120, 6439121
> > Ext. : 122, 213
> >
>
>
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