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| 1 | .\" Copyright (c) 1980 Regents of the University of California.
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| 2 | .\" All rights reserved. The Berkeley software License Agreement
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| 3 | .\" specifies the terms and conditions for redistribution.
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| 4 | .\"
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| 5 | .\" @(#)sleep.3 6.2 (Berkeley) 5/12/86
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| 6 | .\"
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| 7 | .TH SLEEP 3 "May 12, 1986"
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| 8 | .UC 4
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| 9 | .SH NAME
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| 10 | sleep \- suspend execution for interval
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| 11 | .SH SYNOPSIS
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| 12 | .nf
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| 13 | .ft B
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| 14 | #include <unistd.h>
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| 15 |
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| 16 | unsigned int sleep(unsigned int \fIseconds\fP)
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| 17 | .fi
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| 18 | .SH DESCRIPTION
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| 19 | The current process is suspended from execution for the number
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| 20 | of seconds specified by the argument.
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| 21 | .PP
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| 22 | The routine is implemented by setting an alarm timer
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| 23 | and pausing until it occurs.
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| 24 | The previous state of this timer is saved and restored.
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| 25 | If the sleep time exceeds the time to the expiration of the
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| 26 | previous timer,
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| 27 | the process sleeps only until the signal would have occurred, and the
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| 28 | signal is sent 1 second later.
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| 29 | .SH "SEE ALSO"
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| 30 | .BR alarm (2),
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| 31 | .BR pause (2).
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