[SOLVED] Can someone give me the example of the simplest usage of nanosleep in C?

suttiwit · 09-29-2012, 11:19 PM

Can someone give me the example of the simplest usage of nanosleep in C?
Please explain in the comment '/* */'.

I would want the command-line to sleep for 0.1 second.

Any answers welcome.

NevemTeve · 09-29-2012, 11:55 PM

Code:

/* wait 0 sec and 10^8 nanosec */

struct timespec ts = {0, 100000000L };

nanosleep (&ts, NULL};

suttiwit · 09-29-2012, 11:58 PM

but, do i actually need "struct"? I thought I can specify the nanoseconds in the nanosleep();...

H_TeXMeX_H · 09-30-2012, 02:23 AM

Well, if it doesn't need to be very precise, you could use usleep instead, and then you don't need to use the struct. I don't see a problem with using the struct tho.
http://linux.die.net/man/2/nanosleep

suttiwit · 09-30-2012, 05:05 AM

ok, then, give me the simplest example of usleep, plz?

H_TeXMeX_H · 09-30-2012, 05:53 AM

Code:

#include <unistd.h>

int main (void)
{
    usleep(100000);

    return 0;
}

it is in microseconds so 100000 = 0.1 sec.

suttiwit · 09-30-2012, 06:26 AM

Quote:

Originally Posted by H_TeXMeX_H

Code:

#include <unistd.h>

int main (void)
{
    usleep(100000);

    return 0;
}

it is in microseconds so 100000 = 0.1 sec.

Ha ha! Thanks a lot, you've just saved my life!

From wikipedia: 10−6 s µs microsecond

NevemTeve · 09-30-2012, 12:20 PM

Off: Please don't worry, suttiwit, I won't take offence if you say thank you for answering your question.