sleep(3C) Standard C Library Functions sleep(3C)NAMEsleep - suspend execution for an interval of time
SYNOPSIS
#include <unistd.h>
unsigned int sleep(unsigned int seconds);
DESCRIPTION
The caller is suspended from execution for the number of seconds speci‐
fied by the argument. The actual suspension time may be less than that
requested because any caught signal will terminate the sleep() follow‐
ing execution of that signal's catching routine. The suspension time
may be longer than requested by an arbitrary amount because of the
scheduling of other activity in the system. The value returned by
sleep() will be the ``unslept'' amount (the requested time minus the
time actually slept) if the caller incurred premature arousal because
of a caught signal.
The use of the sleep() function has no effect on the action or blockage
of any signal. In a multithreaded process, only the invoking thread is
suspended from execution.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │Standard │
├─────────────────────────────┼─────────────────────────────┤
│MT-Level │Async-Signal-Safe │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOnanosleep(3RT), attributes(5), standards(5)SunOS 5.10 16 Mar 2005 sleep(3C)
