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sleep (sec 5 )      in a generic c++ code and a win32 code.

Posted on 2007-11-27
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Last Modified: 2008-02-01
in some scripts it's



sleep (5000 miliseconds)


what is it in c++?
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Question by:Troudeloup
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9 Comments
 
LVL 86

Expert Comment

by:jkr
ID: 20358917
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jkr earned 2000 total points
ID: 20358925
BTW, '500' is used because the function takes miliseconds - 5000ms are 5s.
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Expert Comment

by:Kent Olsen
ID: 20358930
Hi Troudeloup,

That depends on the C++ implementation.

If the library supports it, the easiest is probably to instantiate a TTimer, set the interval for 5000 ms, and let the OnTimer event handle it.  That's not a true sleep(), but allows the application to continue and to fire off a method at the 5 second mark.


Good Luck,
Kent
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LVL 10

Expert Comment

by:kevin_uk05
ID: 20358941
Try

void sleep(unsigned int mseconds)
{
    clock_t goal = mseconds + clock();
    while (goal > clock());
}
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Expert Comment

by:Jaime Olivares
ID: 20358968
I think Troudeloup is working for Windows, so the Sleep() function should work.
Another portable alternative, not exact up to the millisecond, could be:

time_t t0 = time(NULL) + 5;  // 5 seconds
while (time(NULL) < t0);
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Author Comment

by:Troudeloup
ID: 20358973
jkr, this doesn't halt for 5 seconds.


#include <iostream>
#include <windows.h>
#include <fstream>
#include <string>

using namespace std;




int main ()
{

      Sleep(25000);

      cout << "what's going n ?" << endl;

      
      
      
      return 0;
}



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Author Comment

by:Troudeloup
ID: 20358977
yeah i am, for now.

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LVL 55

Expert Comment

by:Jaime Olivares
ID: 20359061
>> Sleep(25000);

that halts for 25 seconds (25,000 miliseconds)
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Author Comment

by:Troudeloup
ID: 20359105
but it doesn't


note that i use it in the context of console programming
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