How to implement my own ctime() in linux kernel?

[Hao Xu]

Hi everyone!

I think that everyone knows ctime() in glibc:

The ctime(), gmtime() and localtime() functions all take an argument
of data type time_t which represents calendar time. When interpreted
as an absolute time value, it represents the number of seconds
elapsed since 00:00:00 on January 1, 1970, Coordinated Universal Time (UTC).

Now I need to use the function of ctime() in linux kernel, but it
seems that I cannot access ctime() in the linux kernel, right? So I have
to reimplement ctime() in the linux kernel. I found that the algorithm
of glibc ctime() is very complex, I don't understand it. Does anyone has
any good ideas about how to implement ctime()?

Thanks!

 

[Keith Thompson]

I think that everyone knows ctime() in glibc:

Well, everyone here knows about the ctime() function defined by the C
standard.

[snip]

Now I need to use the function of ctime() in linux kernel, but it
seems that I cannot access ctime() in the linux kernel, right?

No idea.

So I have to reimplement ctime() in the linux kernel. I found that
the algorithm of glibc ctime() is very complex, I don't understand
it. Does anyone has any good ideas about how to implement ctime()?

Not here. If you have a working implementation, you might be able to
just copy it into your code, whether you understand the algorithm or
not. If that doesn't work, you'll need to try a Linux-specific
programming group.

 

[Mark McIntyre]

Now I need to use the function of ctime() in linux kernel, but it
seems that I cannot access ctime() in the linux kernel, right?

No idea.

So I have
to reimplement ctime() in the linux kernel. I found that the algorithm
of glibc ctime() is very complex, I don't understand it.

Thats probably because it needs to be. I'd suggest you study the algo and
understand it...

Does anyone has
any good ideas about how to implement ctime()?

Ask in comp.unix.progammer. This is not a C question.