usleep command is not available in SunOS

UNIX Solaris
1

Hi All,
I need usleep command to use in one of my shell script. I am working on SunOS 5.9. Where usleep command is not available. Is there any way to use usleep command in SunOS.

Thanks In Advance,
chidhu

2

Not sure if this link can help you... have a look.
http://www.unix.com/high-level-programming/13079-using-usleep-c-diff-platforms.html

3

Thanks very much for your reply. I have checked that but usleep is called in C++ program, where I want to use usleep command which is there in debian OS.

Thanks,
chidhu

4

On Solaris usleep is implemented using SIGALARM. There is no command line implementation. If you need one you need to roll your own.

5

Please try our search function. You might find stuff like this: Sleep less than 1 second

And there are other threads with other solutions.

6

This works on Solaris:

#include <stdlib.h>
#include <time.h>

int main( int argc, char **argv )
{
    struct timespec ts;

    if ( argc < 2 ) return( -1 );
    *( ( ldiv_t * ) &ts ) = ldiv( 1000000L * strtol( argv[ 1 ], NULL, 0 ), 1000000000L );
    return( nanosleep( &ts, NULL ) );
}

Yeah, I played some casting games to get around assigning an ldiv_t to a struct timespec. But since they're both "struct { long, long }", it works.