Standard C Library Functions                           usleep(3C)



NAME
     usleep - suspend execution for interval in microseconds

SYNOPSIS
     #include 

     int usleep(usecondst useconds);


DESCRIPTION
     The usleep() function suspends the caller from execution for
     the  number  of microseconds specified by the useconds argu-
     ment.  The  actual  suspension  time  might  be  less   than
     requested  because any caught signal will terminate usleep()
     following execution of that signal's catching  routine.  The
     suspension  time  might be longer than requested by an arbi-
     trary amount because of the scheduling of other activity  in
     the system.


     If the value of useconds is 0, then the call has no effect.


     The use of the usleep() function has no effect on the action
     or  blockage of any signal. In a multithreaded process, only
     the invoking thread is suspended from execution.

RETURN VALUES
     On completion,  usleep()  returns  0.  There  are  no  error
     retruns.

ERORS
     No errors are returned.

USAGE
     The usleep() function is included for its historical  usage.
     The nanosleep(3C) function is preferred over this function.

ATRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:














SunOS 5.11           Last change: 5 Feb 2008                    1






Standard C Library Functions                           usleep(3C)



     
           ATRIBUTE TYPE               ATRIBUTE VALUE       
    
     Interface Stability          Committed                   
    
     MT-Level                     Safe                        
    
     Standard                     See standards(5).           
    


SEE ALSO
     nanosleep(3C), sleep(3C), attributes(5), standards(5)










































SunOS 5.11           Last change: 5 Feb 2008                    2