sleep¶
Purpose¶
Sleeps for a specified number of seconds.
Format¶
-
unslept =
sleep(secs)¶ - Parameters:
secs (scalar) – number of seconds to sleep.
- Returns:
unslept (scalar) – number of seconds not slept.
Remarks¶
secs does not have to be an integer. If your system does not permit sleeping for a fractional number of seconds, secs will be rounded to the nearest integer, with a minimum value of 1.
If a program sleeps for the full number of secs specified, sleep() returns
0; otherwise, if the program is awakened early (e.g., by a signal),
sleep() returns the amount of time not slept.
A program may sleep for longer than secs seconds, due to system scheduling.