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SLEEP(3) | Linux Programmer's Manual | SLEEP(3) |
NAME¶
sleep - sleep for the specified number of seconds
SYNOPSIS¶
#include <unistd.h> unsigned int sleep(unsigned int seconds);
DESCRIPTION¶
sleep() makes the calling thread sleep until seconds seconds have elapsed or a signal arrives which is not ignored.
RETURN VALUE¶
Zero if the requested time has elapsed, or the number of seconds left to sleep, if the call was interrupted by a signal handler.
CONFORMING TO¶
POSIX.1-2001.
BUGS¶
sleep() may be implemented using SIGALRM; mixing calls to alarm(2) and sleep() is a bad idea.
Using longjmp(3) from a signal handler or modifying the handling of SIGALRM while sleeping will cause undefined results.
SEE ALSO¶
COLOPHON¶
This page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.
2010-02-03 | GNU |