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Sleep Function

Posted on 2003-11-07
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38,032 Views
Last Modified: 2011-08-18
I have this piece of code.

printf("Exiting .");
sleep(1);
printf(" .");
sleep(1);
printf(" .");
sleep(1);
printf(" .");
sleep(1);
printf(" .");


I want to produce some sort of animation but then it does not seem to work as expected in unix/linux. The code works fine on windows. How to make that work in unix/linux?


hongjun
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Question by:hongjun
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4 Comments
 
LVL 45

Expert Comment

by:sunnycoder
ID: 9706104
on windows sleep is in milliseconds and on linux it is in seconds ...
use usleep or nanosleep to achieve what you want
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LVL 33

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by:hongjun
ID: 9706621
I am aware of the differences b/w windows and linux and that's why I do a sleep(1). I am trying to do this animation
Exiting .
ONE SECOND LATER
Exiting . .
ONE SECOND LATER
Exiting . . .
ONE SECOND LATER
....
.....


hongjun
0
 
LVL 45

Accepted Solution

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sunnycoder earned 50 total points
ID: 9706626
Ok then I guess you are not getting the format as you expect... (dot by dot)
if yes, then you need to either flush the buffers or turn off buffering

printf("Exiting .");
fflush(stdout);
sleep(1);
printf(" .");
fflush(stdout);
sleep(1);
printf(" .");
fflush(stdout);
sleep(1);
printf(" .");
fflush(stdout);
sleep(1);
printf(" .");
fflush(stdout);
0
 
LVL 45

Expert Comment

by:sunnycoder
ID: 9706635
the above code will flush the buffers
to turn off buffering, refer to this
http://oldlook.experts-exchange.com/Programming/Programming_Platforms/Linux_Programming/Q_20675234.html 
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