nanosleep man page on BSDOS

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NANOSLEEP(2)		    BSD Programmer's Manual		  NANOSLEEP(2)

NAME
     nanosleep - suspend process execution for an interval measured in
     nanoseconds

SYNOPSIS
     #include <time.h>

     int
     nanosleep(const struct timespec *rqtp, struct timespec *rmtp);

DESCRIPTION
     Nanosleep() causes the process to sleep for the specified time.  An un-
     masked signal will cause it to terminate the sleep early, regardless of
     the SA_RESTART value on the interrupting signal.

RETURN VALUES
     If the nanosleep() function returns because the requested time has
     elapsed, the value returned will be zero.

     If the nanosleep() function returns due to the delivery of a signal, the
     value returned will be the -1, and the global variable errno will be set
     to indicate the interruption.  If rmtp is non-NULL, the timespec struc-
     ture it references is updated to contain the unslept amount (the request
     time minus the time actually slept).

     If any of the following conditions occur, the nanosleep() function shall
     return -1 and set errno to the corresponding value:

     [EFAULT]	   Either rqtp or rmtp points to memory that is not a valid
		   part of the process address space.

     [EINTR]	   nanosleep() was interrupted by the delivery of a signal.

     [EINVAL]	   rqtp specified a nanosecond value less than zero or greater
		   than or equal to 1000 million.

     [ENOSYS]	   nanosleep() is not supported by this implementation.

SEE ALSO
     sigsuspend(2),  sleep(3)

STANDARDS
     The nanosleep() function conforms to IEEE Std1003.1-1988 (``POSIX'').

BSDI BSD/OS			April 17, 1997				     1
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