dev-cpp-users

[Dev-C++] sleep() in unistd.h ??

[<we...@ha...>]

Hi,

I use always sleep() in linux. I tried it with Dev-C++ and it geve a
error... in a sample example like this:

#include <stdio.h>
#include <unistd.h>

int main(){

    sleep(15);

return(0);
}

In what header is sleep() ??

If it didn't exist what funcion can i use that do the something ?? What
header i need ??

Thkz a lot.

Best Regards.

[ ]'s

Re: [Dev-C++] sleep() in unistd.h ??

[Per W. <pw...@ia...>]

If you do "grep -i sleep" in your include directory, you will notice:
stdlib.h: _sleep(unsigned long);
winbase.h: void WINAPI Sleep(DWORD);
winbase.h: DWORD WINAPI SleepEx(DWORD,BOOL);

/Per W

On Thu, 12 Dec 2002 we...@ha... wrote:

> Hi,
> 
> I use always sleep() in linux. I tried it with Dev-C++ and it geve a
> error... in a sample example like this:
> 
> #include <stdio.h>
> #include <unistd.h>
> 
> int main(){
> 
>     sleep(15);
> 
> return(0);
> }
> 
> In what header is sleep() ??
> 
> If it didn't exist what funcion can i use that do the something ?? What
> header i need ??
> 
> Thkz a lot.
> 
> Best Regards.
> 
> [ ]'s
> 
> 
> 
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Re: [Dev-C++] sleep() in unistd.h ??

[<or...@vp...>]

Hello!

we...@ha... wrote:

 > In what header is sleep() ??


I use gcc 3.2 separately installed, and took a search for "sleep" in the includes.
The result is this:

/*
  * NOTE: Officially the three following functions are obsolete. The Win32 API
  *       functions SetErrorMode, Beep and Sleep are their replacements.
  */
void    _beep (unsigned int, unsigned int);
void    _seterrormode (int);
void    _sleep (unsigned long);

So you should call _sleep() (not recommended, it is likely to be removed) or
Sleep() instead of sleep(). For Sleep() you should include windows.h
or at least winbase.h

I hope that helps.
-- 
Regards
   Balázs
(Yes, in Hungary, we write our first name at the end)

Re: [Dev-C++] sleep() in unistd.h ??

[<or...@vp...>]

Hello again!

I forgot to tell, that I found the obsolete _sleep() and others in stdlib.h

--
Best regards
   Balázs

Re: [Dev-C++] sleep() in unistd.h ??

[<we...@ha...>]

Hi all,


Thkz for help. :))

Now i'm using the correct header windows.h but count different from sleep()
of linux. In linux it count in seconds... :)

And here ?? I done a sample example:

#include <stdio.h>
#include <windows.h>

int main(){

    Sleep(46000);

return(0);
}

And it ruuning more or less 45 seconds... i tryed change this values to
42000, 43000, ... and it appear running always near 45 seconds.... :/

How to count for example 1 minute with this sleep() function ??

And 15 minutes ??

Is it precision ??

Thkz a lot.

Best Regards.

[ ]'s

Re: [Dev-C++] sleep() in unistd.h ??

[Per W. <pw...@ia...>]

It's in milliseconds, but of course all a sleep function can do is
guarantee a MINIMUM sleeping time. In case other processes gets scheduled
to run, the sleeping process might have to wait slightly longer than the
specified time interval.

However, it is extremely rare that you get more than a couple of tenth of
seconds extra delay before being allowed to run. Was there any problem
recompiling the application between the test runs?

For long delays, you can just specify larger delay numbers until you reach
the numerical limit of the input parameter. For even longer delays, you
must do a loop with multiple sleep calls.

/Per W

On Fri, 13 Dec 2002 we...@ha... wrote:

> Hi all,
> 
> 
> Thkz for help. :))
> 
> Now i'm using the correct header windows.h but count different from sleep()
> of linux. In linux it count in seconds... :)
> 
> And here ?? I done a sample example:
> 
> #include <stdio.h>
> #include <windows.h>
> 
> int main(){
> 
>     Sleep(46000);
> 
> return(0);
> }
> 
> And it ruuning more or less 45 seconds... i tryed change this values to
> 42000, 43000, ... and it appear running always near 45 seconds.... :/
> 
> How to count for example 1 minute with this sleep() function ??
> 
> And 15 minutes ??
> 
> Is it precision ??
> 
> Thkz a lot.
> 
> Best Regards.
> 
> [ ]'s
> 
>