Sleep: Difference between revisions
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{{task|Basic language learning}}
;Task:
Write a program that does the following in this order:
* Input an amount of time to sleep in whatever units are most natural for your language (milliseconds, seconds, ticks, etc.). This unit should be noted in comments or in a description.
Line 8 ⟶ 10:
<br>
;Related task:
* [[Nautical bell]]
<br><br>
=={{header|11l}}==
{{trans|Python}}
<syntaxhighlight lang="11l">V seconds = Float(input())
print(‘Sleeping...’)
sleep(seconds)
print(‘Awake!’)</syntaxhighlight>
=={{header|360 Assembly}}==
REENTRANT means the program can be called from several callers simultaneously. The program obtains storage (memory) at each invocation.
Sleep (logically swapped out task) is established through STIMER macro (SVC 47)
<syntaxhighlight lang="360 assembly">
START
PRINT DATA,GEN
Line 122 ⟶ 132:
* --------------------------------------------------------------------
END SLEEP
</syntaxhighlight>
'''output''' invoked with PARM='6' (+ sign indicates "problem state" (non system key) execution
<pre style="overflow:scroll">
Line 131 ⟶ 141:
=={{header|8051 Assembly}}==
Input and output is dependent on hardware. The time units are machine cycles, which depends both on the oscillator frequency and the oscillator periods to machine cycle conversion factor. This code puts the processor into 'idle' mode, where code execution is stopped and resumed via an interrupt.
<
jmp main
ORG TIMER0
Line 153 ⟶ 163:
; Awake!
jmp $</
=={{header|8th}}==
<
f:stdin f:getline
"Sleeping..." . cr
eval sleep
"Awake!" . cr bye
</syntaxhighlight>
=={{header|AArch64 Assembly}}==
{{works with|as|Raspberry Pi 3B version Buster 64 bits}}
<syntaxhighlight lang="aarch64 assembly">
/* ARM assembly AARCH64 Raspberry PI 3B */
/* program sleep64.s */
/*******************************************/
/* Constantes file */
/*******************************************/
/* for this file see task include a file in language AArch64 assembly */
.include "../includeConstantesARM64.inc"
.equ SLEEP, 0x65 // Linux syscall
.equ BUFFERSIZE, 100
/*******************************************/
/* Initialized data */
/*******************************************/
.data
szMessQuest: .asciz "Enter the time to sleep in seconds : "
szMessError: .asciz "Error occured.\n"
szMessSleep: .asciz "Sleeping Zzzzzzz.\n"
szMessAwake: .asciz "Awake!!!\n"
szCarriageReturn: .asciz "\n"
/*******************************************/
/* UnInitialized data */
/*******************************************/
.bss
.align 4
ZonesAttente:
qSecondes: .skip 8
qMicroSecondes: .skip 8
ZonesTemps: .skip 16
sBuffer: .skip BUFFERSIZE
/*******************************************/
/* code section */
/*******************************************/
.text
.global main
main:
ldr x0,qAdrszMessQuest // display invite message
bl affichageMess
mov x0,STDIN // input standard linux
ldr x1,qAdrsBuffer
mov x2,BUFFERSIZE
mov x8,READ // read input string
svc 0
cmp x0,0 // read error ?
ble 99f
//
ldr x0,qAdrsBuffer // buffer address
bl conversionAtoD // conversion string in number in x0
ldr x1,qAdrqSecondes
str x0,[x1] // store second number in area
ldr x0,qAdrszMessSleep // display sleeping message
bl affichageMess
ldr x0,qAdrZonesAttente // delay area
ldr x1,qAdrZonesTemps //
mov x8,#SLEEP // call system SLEEP
svc 0
cmp x0,#0 // error sleep ?
blt 99f
ldr x0,qAdrszMessAwake // display awake message
bl affichageMess
mov x0, #0 // return code
b 100f
99: // display error message
ldr x0,qAdrszMessError
bl affichageMess
mov x0, 1 // return code
100: // standard end of the program
mov x8,EXIT // request to exit program
svc 0 // perform system call
qAdrszMessQuest: .quad szMessQuest
qAdrszMessError: .quad szMessError
qAdrszMessSleep: .quad szMessSleep
qAdrszMessAwake: .quad szMessAwake
qAdrqSecondes: .quad qSecondes
qAdrZonesAttente: .quad ZonesAttente
qAdrZonesTemps: .quad ZonesTemps
qAdrsBuffer: .quad sBuffer
qAdrszCarriageReturn: .quad szCarriageReturn
/********************************************************/
/* File Include fonctions */
/********************************************************/
/* for this file see task include a file in language AArch64 assembly */
.include "../includeARM64.inc"
</syntaxhighlight>
<pre>
Enter the time to sleep in seconds : 5
Sleeping Zzzzzzz.
Awake!!!
</pre>
=={{header|Action!}}==
<syntaxhighlight lang="action!">BYTE RTCLOK1=$13
BYTE RTCLOK2=$14
BYTE PALNTSC=$D014
PROC Wait(CARD frames)
BYTE lsb=frames,msb=frames+1
;wait lsb of frames
lsb==+RTCLOK2
WHILE lsb#RTCLOK2 DO OD
;wait msb of 256*frames
WHILE msb>0
DO
WHILE lsb=RTCLOK2 DO OD
WHILE lsb#RTCLOK2 DO OD
msb==-1
OD
RETURN
CARD FUNC GetFrame()
CARD res
BYTE lsb=res,msb=res+1
lsb=RTCLOK2
msb=RTCLOK1
RETURN (res)
CARD FUNC MsToFrames(CARD ms)
CARD res
IF PALNTSC=15 THEN
res=ms/60
ELSE
res=ms/50
FI
RETURN (res)
CARD FUNC FramesToMs(CARD frames)
CARD res
IF PALNTSC=15 THEN
res=frames*60
ELSE
res=frames*50
FI
RETURN (res)
PROC Main()
CARD ARRAY data=[1 5 10 50 100 500]
CARD beg,end,diff,diffMs,delay,delayMs
BYTE i
FOR i=0 TO 5
DO
delay=data(i)
delayMs=FramesToMs(delay)
PrintF("Wait %U frames / %U ms...%E",delay,delayMs)
beg=GetFrame()
Wait(delay)
end=GetFrame()
diff=end-beg
diffMs=FramesToMs(diff)
PrintF("Frame number at begin %U%E",beg)
PrintF("Frame number at end %U%E",end)
PrintF("Waited %U-%U=%U frames / %U ms%E%E",end,beg,diff,diffMs)
OD
RETURN</syntaxhighlight>
{{out}}
The following result has been obtained from PAL version of Atari 8-bit computer.
[https://gitlab.com/amarok8bit/action-rosetta-code/-/raw/master/images/Sleep.png Screenshot from Atari 8-bit computer]
<pre>
Wait 1 frames / 50 ms...
Frame number at begin 411
Frame number at end 412
Waited 412-411=1 frames / 50 ms
Wait 5 frames / 250 ms...
Frame number at begin 423
Frame number at end 428
Waited 428-423=5 frames / 250 ms
Wait 10 frames / 500 ms...
Frame number at begin 439
Frame number at end 449
Waited 449-439=10 frames / 500 ms
Wait 50 frames / 2500 ms...
Frame number at begin 460
Frame number at end 510
Waited 510-460=50 frames / 2500 ms
Wait 100 frames / 5000 ms...
Frame number at begin 521
Frame number at end 621
Waited 621-521=100 frames / 5000 ms
Wait 500 frames / 25000 ms...
Frame number at begin 635
Frame number at end 1135
Waited 1135-635=500 frames / 25000 ms
</pre>
=={{header|Ada}}==
Line 167 ⟶ 381:
The Ada delay statement takes an argument of type Duration, which is a real number counting the number of seconds to delay. Thus, 2.0 will delay 2.0 seconds, while 0.001 will delay 0.001 seconds.
<
with Ada.Float_Text_Io; use Ada.Float_Text_Io;
Line 177 ⟶ 391:
delay Duration(In_Val);
Put_Line("Awake!");
end Sleep;</
=={{header|Aime}}==
<
# Sleep X seconds
Line 188 ⟶ 402:
#usleep(atoi(argv(1)));
o_text("Awake!\n");</
=={{header|ALGOL 68}}==
Line 194 ⟶ 408:
{{works with|ALGOL 68G|Any for Microsoft Windows - tested with release [http://sourceforge.net/projects/algol68/files/algol68g/algol68g-2.8/algol68g-2.8.win32.zip/download 2.8.win32]}}
Only works for Microsoft Windows because it uses Windows-specific ping syntax.
<
INT milliseconds = read int; # ping uses milliseconds #
print ("Sleeping...");
Line 201 ⟶ 415:
# ping -n gives number of tries, -w timeout, and >NUL deletes output so the user does not see it #
print (new line);
print ("Awake!")</
=={{header|AntLang}}==
<syntaxhighlight lang="antlang">milliseconds: eval[input["How long should I sleep? "]] / eval = evil, but this is just a simple demo
echo["Sleeping..."]
sleep[milliseconds]
echo["Awake!"]</syntaxhighlight>
=={{header|Applesoft BASIC}}==
The cycles and times calculated should only be taken as a minimum delay.
<
20 POKE 771,168: POKE 772,252
30 INPUT "ENTER WAIT VALUE (1-256) : ";A
Line 213 ⟶ 433:
70 PRINT "WAIT FOR "C" CYCLES OR "
80 PRINT C * 14 / 14.318181" MICROSECONDS"
90 PRINT "SLEEPING": CALL 768: PRINT "AWAKE"</
Output:<pre>ENTER WAIT VALUE (1-256) : 256
WAIT FOR 167309 CYCLES OR
Line 220 ⟶ 440:
AWAKE
</pre>
=={{header|ARM Assembly}}==
{{works with|as|Raspberry Pi}}
<syntaxhighlight lang="arm assembly">
/* ARM assembly Raspberry PI */
/* program sleepAsm.s */
/* Constantes */
.equ STDIN, 0 @ Linux input console
.equ STDOUT, 1 @ Linux output console
.equ EXIT, 1 @ Linux syscall
.equ READ, 3 @ Linux syscall
.equ WRITE, 4 @ Linux syscall
.equ SLEEP, 0xa2 @ Linux syscall
.equ BUFFERSIZE, 100
/* Initialized data */
.data
szMessQuest: .asciz "Enter the time to sleep in seconds : "
szMessError: .asciz "Error occured.\n"
szMessSleep: .asciz "Sleeping Zzzzzzz.\n"
szMessAwake: .asciz "Awake!!!\n"
szCarriageReturn: .asciz "\n"
/* UnInitialized data */
.bss
.align 4
ZonesAttente:
iSecondes: .skip 4
iMicroSecondes: .skip 4
ZonesTemps: .skip 8
sBuffer: .skip BUFFERSIZE
/* code section */
.text
.global main
main:
ldr r0,iAdrszMessQuest @ display invite message
bl affichageMess
mov r0,#STDIN @ input standard linux
ldr r1,iAdrsBuffer
mov r2,#BUFFERSIZE
mov r7,#READ @ read input string
svc 0
cmp r0,#0 @ read error ?
ble 99f
@
ldr r0,iAdrsBuffer @ buffer address
bl conversionAtoD @ conversion string in number in r0
ldr r1,iAdriSecondes
str r0,[r1] @ store second number in area
ldr r0,iAdrszMessSleep @ display sleeping message
bl affichageMess
ldr r0,iAdrZonesAttente @ delay area
ldr r1,iAdrZonesTemps @
mov r7,#SLEEP @ call system SLEEP
svc 0
cmp r0,#0 @ error sleep ?
blt 99f
ldr r0,iAdrszMessAwake @ display awake message
bl affichageMess
mov r0, #0 @ return code
b 100f
99: @ display error message
ldr r0,iAdrszMessError
bl affichageMess
mov r0, #1 @ return code
100: @ standard end of the program
mov r7, #EXIT @ request to exit program
svc 0 @ perform system call
iAdrszMessQuest: .int szMessQuest
iAdrszMessError: .int szMessError
iAdrszMessSleep: .int szMessSleep
iAdrszMessAwake: .int szMessAwake
iAdriSecondes: .int iSecondes
iAdrZonesAttente: .int ZonesAttente
iAdrZonesTemps: .int ZonesTemps
iAdrsBuffer: .int sBuffer
iAdrszCarriageReturn: .int szCarriageReturn
/******************************************************************/
/* display text with size calculation */
/******************************************************************/
/* r0 contains the address of the message */
affichageMess:
push {r0,r1,r2,r7,lr} @ save registers
mov r2,#0 @ counter length */
1: @ loop length calculation
ldrb r1,[r0,r2] @ read octet start position + index
cmp r1,#0 @ if 0 its over
addne r2,r2,#1 @ else add 1 in the length
bne 1b @ and loop
@ so here r2 contains the length of the message
mov r1,r0 @ address message in r1
mov r0,#STDOUT @ code to write to the standard output Linux
mov r7, #WRITE @ code call system "write"
svc #0 @ call system
pop {r0,r1,r2,r7,lr} @ restaur registers
bx lr @ return
/******************************************************************/
/* Convert a string to a number stored in a registry */
/******************************************************************/
/* r0 contains the address of the area terminated by 0 or 0A */
/* r0 returns a number */
conversionAtoD:
push {fp,lr} @ save 2 registers
push {r1-r7} @ save others registers
mov r1,#0
mov r2,#10 @ factor
mov r3,#0 @ counter
mov r4,r0 @ save address string -> r4
mov r6,#0 @ positive sign by default
mov r0,#0 @ initialization to 0
1: /* early space elimination loop */
ldrb r5,[r4,r3] @ loading in r5 of the byte located at the beginning + the position
cmp r5,#0 @ end of string -> end routine
beq 100f
cmp r5,#0x0A @ end of string -> end routine
beq 100f
cmp r5,#' ' @ space ?
addeq r3,r3,#1 @ yes we loop by moving one byte
beq 1b
cmp r5,#'-' @ first character is -
moveq r6,#1 @ 1 -> r6
beq 3f @ then move on to the next position
2: /* beginning of digit processing loop */
cmp r5,#'0' @ character is not a number
blt 3f
cmp r5,#'9' @ character is not a number
bgt 3f
/* character is a number */
sub r5,#48
ldr r1,iMaxi @ check the overflow of the register
cmp r0,r1
bgt 99f @ overflow error
mul r0,r2,r0 @ multiply par factor 10
add r0,r5 @ add to r0
3:
add r3,r3,#1 @ advance to the next position
ldrb r5,[r4,r3] @ load byte
cmp r5,#0 @ end of string -> end routine
beq 4f
cmp r5,#0x0A @ end of string -> end routine
beq 4f
b 2b @ loop
4:
cmp r6,#1 @ test r6 for sign
moveq r1,#-1
muleq r0,r1,r0 @ if negatif, multiply par -1
b 100f
99: /* overflow error */
ldr r0,=szMessErrDep
bl affichageMess
mov r0,#0 @ return zero if error
100:
pop {r1-r7} @ restaur other registers
pop {fp,lr} @ restaur 2 registers
bx lr @return procedure
/* constante program */
iMaxi: .int 1073741824
szMessErrDep: .asciz "Too large: overflow 32 bits.\n"
.align 4
</syntaxhighlight>
=={{header|Arturo}}==
<syntaxhighlight lang="rebol">time: to :integer input "Enter number of milliseconds: "
print "Sleeping..."
pause time
print "Awake!"</syntaxhighlight>
{{out}}
<pre>Enter number of milliseconds: 1000
Sleeping...
Awake!</pre>
=={{header|AutoHotkey}}==
<
sleep, 2000 ; 2 seconds
TrayTip, awake, awake
Msgbox, awake</
=={{header|AutoIt}}==
<
$sleep_me=InputBox("Sleep", "Number of seconds to sleep", "10", "", -1, -1, 0, 0)
Dim $sleep_millisec=$sleep_me*1000
MsgBox(0,"Sleep","Sleeping for "&$sleep_me&" sec")
sleep ($sleep_millisec)
MsgBox(0,"Awake","... Awaking")</
=={{header|AWK}}==
<syntaxhighlight lang="awk">
# syntax: GAWK -f SLEEP.AWK [seconds]
BEGIN {
Line 249 ⟶ 651:
while (systime() < t + seconds) {}
}
</syntaxhighlight>
<p>commands and output:</p>
<pre>
Line 265 ⟶ 667:
The time unit for the Pause command is based on clock cycles, not seconds. At 15 MHz, one second is approximately equal to a value of 4500. At 6 MHz, one second is approximately 1800.
<
input→A
0→T
Line 279 ⟶ 681:
Disp "SLEEPING...",i
Pause T
Disp "AWAKE",i</
=={{header|BASIC}}==
{{works with|QuickBasic|4.5}}
<
PRINT "Sleeping..."
SLEEP sec
PRINT "Awake!"</
"SLEEP" with no argument will sleep until a button is pressed on the keyboard (including modifier keys such as shift or control). Also, pressing a key while SLEEP is waiting for a specific amount of time (as above) will end the SLEEP.
===
<syntaxhighlight lang="basic256">print "Enter number of seconds to sleep: ";
input ms
print "Sleeping..."
pause ms
print "Awake!"
end</syntaxhighlight>
==={{header|True BASIC}}===
<syntaxhighlight lang="qbasic">PRINT "Enter number of seconds to sleep";
INPUT ms
PRINT "Sleeping..."
PAUSE ms
PRINT "Awake!"
END</syntaxhighlight>
==={{header|Yabasic}}===
The '''sleep-command''' has many different names: You may write <code>pause</code>, <code>sleep</code> or <code>wait</code> interchangeably; whatever you write, yabasic will always do exactly the same.
<syntaxhighlight lang="yabasic">input "Enter number of seconds to sleep: " ms
print "Sleeping..."
sleep ms
//pause ms
//wait ms
print "Awake!"
end</syntaxhighlight>
==={{header|Sinclair ZX81 BASIC}}===
The <code>PAUSE</code> statement pauses execution for a length of time expressed in terms of the frame rate of the television you are using as a monitor. But there are one or two problems with it...
(1) Televisions in different countries have (had) different frame rates, so a one-second pause would need to be coded as <code>PAUSE 50</code> in Britain and <code>PAUSE 60</code> in the United States. The use of <code>PAUSE</code> therefore reduces compatibility.
(2) The highest acceptable value is 32767 frames: anything higher is taken to mean "pause forever".
(3) If the user presses a key, the computer will stop pausing and resume execution from the line after the <code>PAUSE</code>.
(4) In <code>FAST</code> mode the <code>PAUSE</code> statement needs to be followed by <code>POKE 16437,255</code> to avoid corrupting the program.
(5) The duration of the pause is not terribly precise.
(6) The screen flickers irritatingly when the pause ends, even if you are in <code>SLOW</code> mode.
Bearing all these factors in mind, it will often be found easier to use an empty <code>FOR</code> loop instead.
(Oh, and the ZX81 character set doesn't include lower-case letters or an exclamation mark: so the message <tt>Awake!</tt> has to be replaced by <tt>AWAKE.</tt>)
<syntaxhighlight lang="basic">10 PRINT "HOW LONG SHOULD I SLEEP FOR?"
20 PRINT "(IN TELEVISION FRAMES)"
30 INPUT SLEEPTIME
40 PRINT "SLEEPING... ";
50 PAUSE SLEEPTIME
60 PRINT "AWAKE."</syntaxhighlight>
==={{header|BaCon}}===
<syntaxhighlight lang="freebasic">
'---The SLEEP command takes milliseconds by default but we will adjust it
PRINT "Enter a number for each second you want to wait\nthen press Enter "
INPUT millisec
PRINT "Sleeping..."
SLEEP millisec * 1000
PRINT "Awake!"
</syntaxhighlight>
==={{header|ZX Spectrum Basic}}===
Pressing a key will cut the pause short on the ZX Spectrum.
<
20 LET s = 5
30 PRINT "Sleeping"
40 PAUSE s * 50
50 PRINT "Awake"</
=={{header|Batch File}}==
Line 303 ⟶ 770:
{{works with|Windows NT|4}}
<
set /p Seconds=Enter the number of seconds to sleep:
set /a Seconds+=1
echo Sleeping ...
ping -n %Seconds% localhost >nul 2>&1
echo Awake!</
A similar trick can be used to wait a certain number of milliseconds. The <code>ping</code> utility includes a <code>/w</code> option which specifies the timeout to wait for a reply. This coupled with an unreachable address (where the full timeout will be needed) leads to the following:
{{works with|Windows 2000}}
<
set /p MilliSeconds=Enter the number of milliseconds to sleep:
echo Sleeping ...
ping -n 1 -w %MilliSeconds% 1.2.3.4 >nul 2>&1
echo Awake!</
Starting with Windows Vista there is a command-line utility to wait a number of seconds:
{{works with|Windows Vista}}
<
set /p Seconds=Enter the number of seconds to sleep:
echo Sleeping ...
timeout /t %Seconds% /nobreak >nul
echo Awake!</
=={{header|BBC BASIC}}==
{{works with|BBC BASIC for Windows}}
<
PRINT "Sleeping..."
WAIT sleep%
PRINT "Awake!"</
Whilst sleeping BBC BASIC for Windows periodically tests for the ESCape key being pressed.
Line 341 ⟶ 808:
The function <tt>sleep</tt> needs seconds, which are read from the standard input.
<
#include <unistd.h>
Line 352 ⟶ 819:
printf("Awake!\n");
return 0;
}</
=={{header|C sharp|C#}}==
<
using System.Threading;
Line 368 ⟶ 835:
Console.WriteLine("Awake!");
}
}</
=={{header|C++}}==
Line 374 ⟶ 841:
{{works with|C++11}}
<
#include <thread>
#include <chrono>
Line 385 ⟶ 852:
std::cout << "Awake!\n";
}
</syntaxhighlight>
{{works with|POSIX}}
<
#include <iostream>
Line 402 ⟶ 869:
cout << "Awake!" << endl;
return 0;
}</
=={{header|Caché ObjectScript}}==
<syntaxhighlight lang="caché objectscript">
SLEEP
; the HANG command can use fractional seconds; the Awake line will be slightly off due to processing time
read "How long to sleep in seconds?: ",sleep
write !,"Sleeping... time is "_$ztime($piece($ztimestamp,",",2,2),1,2)
hang +sleep ; use + to cast numeric, if non-numeric will hang 0
write !,"Awake! Time is "_$ztime($piece($ztimestamp,",",2,2),1,2)
quit
</syntaxhighlight>
{{out}}<pre>
SAMPLES>do ^SLEEP
How long to sleep in seconds?: 7.25
Sleeping... time is 14:48:29.27
Awake! Time is 14:48:36.55
</pre>
=={{header|Clojure}}==
<
(println "Sleeping...")
(Thread/sleep ms)
(println "Awake!"))
; call it
(sleep 1000)</
=={{header|COBOL}}==
COBOL 2023 introduced the <code>AFTER</code> phrase of the <code>CONTINUE</code> statement to specify a time period in seconds for which execution will be suspended, which, depending on implementation, could be not an integer.
{{works with|COBOL 2023}}
<syntaxhighlight lang="cobol"> IDENTIFICATION DIVISION.
PROGRAM-ID. Sleep-In-Seconds.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 Seconds-To-Sleep USAGE IS FLOAT-LONG.
PROCEDURE DIVISION.
ACCEPT Seconds-To-Sleep
DISPLAY "Sleeping..."
CONTINUE AFTER Seconds-To-Sleep SECONDS
DISPLAY "Awake!"
GOBACK.
END PROGRAM Sleep-In-Seconds.</syntaxhighlight>
Prior to this there were two methods for putting the program to sleep using unofficial extensions.
The first expects the amount of time to be in seconds.
{{works with|ACUCOBOL-GT}}
{{works with|
<
PROGRAM-ID. Sleep-In-Seconds.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 Seconds-To-Sleep USAGE IS COMP-2.
*> Note: COMP-2, while supported on most implementations, is
*> non-standard. FLOAT-SHORT is the proper USAGE for Native
*> IEEE 754 Binary64 Floating-point data items.
PROCEDURE DIVISION.
ACCEPT Seconds-To-Sleep
DISPLAY "Sleeping..."
CALL "C$SLEEP" USING BY CONTENT Seconds-To-Sleep
DISPLAY "Awake!"
GOBACK.
END PROGRAM Sleep-In-Seconds.</syntaxhighlight>
While the second expects the time to be in nanoseconds. Note: Windows systems can only sleep to the nearest millisecond.
{{works with|
<
PROGRAM-ID. Sleep-In-Nanoseconds.
OPTIONS.
DEFAULT ROUNDED MODE IS NEAREST-AWAY-FROM-ZERO.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 Seconds-To-Sleep USAGE
01 Nanoseconds-To-Sleep USAGE
01 Nanoseconds-Per-Second CONSTANT AS 1000000000.
PROCEDURE DIVISION.
ACCEPT Seconds-To-Sleep
END-COMPUTE
DISPLAY "Sleeping..."
CALL "CBL_OC_NANOSLEEP"
USING BY CONTENT Nanoseconds-To-Sleep
END-CALL
DISPLAY "Awake!"
GOBACK.
END PROGRAM Sleep-In-Nanoseconds.</syntaxhighlight>
=={{header|Common Lisp}}==
<
(let ((seconds (read)))
(format t "Sleeping...~%")
Line 469 ⟶ 976:
(format t "Awake!~%")))
(test-sleep)</
=={{header|D}}==
<
void main() {
Line 483 ⟶ 990:
Thread.sleep(dur!"seconds"(secs));
writeln("Awake!");
}</
{{out}}
<pre>Enter a time to sleep (in seconds): 5
Line 490 ⟶ 997:
=={{header|DCL}}==
<
$ write sys$output "Sleeping..."
$ wait 'amount_of_time
$ write sys$output "Awake!"</
{{out}}
<pre>$ @sleep 1 ! sleeps for 1 hour
Line 510 ⟶ 1,017:
Sleeping...
Awake!</pre>
=={{header|DBL}}==
<syntaxhighlight lang="dbl">;
; Sleep for DBL version 4 by Dario B.
;
PROC
;------------------------------------------------------------------
XCALL FLAGS (0007000000,1) ;Suppress STOP message
OPEN(1,O,'TT:')
DISPLAY (1,"Sleeping...",10)
SLEEP 10 ;Sleep for 10 seconds
DISPLAY (1,"Awake!",10)
</syntaxhighlight>
=={{header|Delphi}}==
<
{$APPTYPE CONSOLE}
Line 528 ⟶ 1,049:
Sleep(lTimeToSleep); // milliseconds
WriteLn('Awake!');
end.</
=={{header|Diego}}==
Diego is zero-threaded, meaning that the callee can handle the instruction how they wish (dependant on decision behaviour), however, the thread behaviour can be stipulated in code.
<syntaxhighlight lang="diego">begin_instuct(sleepTime);
ask_human()_first()_msg(Enter number of seconds to sleep: )_var(sleepSecs)_me();
set_decision(asynchronous)_me();
me_msg(Sleeping...);
me_sleep[sleepSecs]_unit(secs);
me_msg(Awake!);
reset_decision()_me();
end_instruct(sleepTime);
exec_instruct(sleepTime)_me();
</syntaxhighlight>
=={{header|DIBOL-11}}==
<syntaxhighlight lang="dibol-11">
START ;Demonstrate the SLEEP function
RECORD SLEEPING
, A8, "Sleeping"
RECORD WAKING
, A6,"Awake"
PROC
XCALL FLAGS (0007000000,1) ;Suppress STOP message
OPEN(8,O,'TT:')
WRITES(8,SLEEPING)
SLEEP 30 ; Sleep for 30 seconds
WRITES(8,WAKING)
END
</syntaxhighlight>
=={{header|E}}==
Line 538 ⟶ 1,096:
So, the closest thing possible to the task description is to wait for the specified time to pass, then do whatever the next thing is.
<
stdout.println("Sleeping...")
timer.whenPast(timer.now() + milliseconds, fn {
Line 544 ⟶ 1,102:
nextThing()
})
}</
=={{header|EasyLang}}==
<syntaxhighlight lang="easylang">
print "How many seconds should I sleep? "
sec = number input
print "Sleeping ..."
sleep sec
print "Awake!"
</syntaxhighlight>
=={{header|EGL}}==
<
// Syntax: sysLib.wait(time BIN(9,2) in)
Line 557 ⟶ 1,124:
end
end</
=={{header|Eiffel}}==
Line 565 ⟶ 1,132:
<code lang="eiffel">sleep</code> takes an argument which declares the number of nanoseconds to suspend the thread's execution.
<
APPLICATION
inherit
Line 581 ⟶ 1,148:
print ("Awake!%N")
end
end</
Output (sleeping 10 seconds):
Line 589 ⟶ 1,156:
Awake!
</pre>
=={{header|Elena}}==
ELENA 4.x :
<syntaxhighlight lang="elena">import extensions;
public program()
{
int sleep := console.readLine().toInt();
console.printLine("Sleeping...");
system'threading'threadControl.sleep(sleep);
console.printLine("Awake!")
}</syntaxhighlight>
=={{header|Elixir}}==
<
IO.puts "Sleeping..."
:timer.sleep(1000 * seconds) # in milliseconds
Line 598 ⟶ 1,177:
sec = if System.argv==[], do: 1, else: hd(System.argv) |> String.to_integer
sleep.(sec)</
=={{header|Emacs Lisp}}==
(message "Sleeping ...")
(sleep-for seconds)
(message "Awake!"))</
The time can be a decimal like 1.5 though the actual resolution of <code>sleep-for</code> depends on the operating system. The similar <code>sit-for</code> stops sleeping if there's pending keyboard input.
=={{header|EMal}}==
<syntaxhighlight lang="emal">
^|The pause command takes milliseconds, we adjust to seconds|^
fun main = int by List args
int seconds
if args.length == 1 do seconds = int!args[0] end
if seconds == 0
seconds = ask(int, "Enter number of seconds to sleep: ")
end
writeLine("Sleeping...")
pause(1000 * seconds)
writeLine("Awake!")
return 0
end
exit main(Runtime.args)
</syntaxhighlight>
{{out}}
Sample session:
<pre>
Enter number of seconds to sleep: 7
Sleeping...
Awake!
</pre>
=={{header|Erlang}}==
Erlang doesn't really have such a thing as a main thread. However, sleeping any process can be done with the <tt>timer:sleep/1</tt> function:
<
io:format("Sleeping...~n"),
timer:sleep(1000), %% in milliseconds
io:format("Awake!~n").</
It is to be noted that Erlang's sleep function is implemented in Erlang with a timeout on a <tt>receive</tt>, so you may sometimes encounter the following way of sleeping a process:
<
io:format("Sleeping...~n"),
receive
after 1000 -> ok %% in milliseconds
end,
io:format("Awake!~n").</
which is the way it is implemented in the <tt>timer</tt> module.
=={{header|ERRE}}==
<syntaxhighlight lang="erre">
..............
INPUT("Enter the time to sleep in seconds: ";sleep)
Line 640 ⟶ 1,237:
PRINT("Awake!")
..............
</syntaxhighlight>
=={{header|F_Sharp|F#}}==
{{trans|C#}}
<
open System.Threading
Line 653 ⟶ 1,250:
Thread.Sleep(sleep); //milliseconds
Console.WriteLine("Awake!")
0</
=={{header|Factor}}==
<
: read-sleep ( -- )
Line 662 ⟶ 1,259:
"Sleeping..." print
sleep
"Awake!" print ;</
=={{header|Fantom}}==
Line 668 ⟶ 1,265:
Fantom has a 'Duration' class, which uses time definitions with units: e.g., 5sec, 100ns, 5hr. These are used for input in the following program.
<
using concurrent
Line 690 ⟶ 1,287:
}
}
</syntaxhighlight>
Output:
Line 701 ⟶ 1,298:
=={{header|FBSL}}==
<
DIM %msec
PRINT "Milliseconds to sleep: ";
Line 709 ⟶ 1,306:
PRINT "Awake!"
PAUSE
</syntaxhighlight>
Output
<pre>Milliseconds to sleep: 1000
Line 718 ⟶ 1,315:
=={{header|Forth}}==
<
." Sleeping..."
ms
." awake." cr ;</
====Explanation note on MS====
MS ( n -- ) A.10.6.2.1905
MS is a Standard Forth word that waits for at least n milliseconds. It is part of the optional Facility Wordset. It is more than just a simple delay in that in a multi-tasking environment when MS is executed the current task is asleep until the time expires.
=={{header|Fortran}}==
<
implicit none
Line 741 ⟶ 1,344:
end if
end program test_sleep</
=={{header|FreeBASIC}}==
<syntaxhighlight lang="freebasic">' FB 1.05.0 Win64
Dim ms As UInteger
Input "Enter number of milliseconds to sleep" ; ms
Print "Sleeping..."
Sleep ms, 1 '' the "1" means Sleep can't be interrupted with a keystroke
Print "Awake!"
End</syntaxhighlight>
Sample input/output
{{out}}
<pre>
Enter number of milliseconds to sleep? 3000
Sleeping...
Awake!
</pre>
=={{header|Frink}}==
In Frink, all values have units of measure, and sleep functions take units of time, which can be seconds, nanoseconds, minutes, hours, etc. The user may enter values like "3 hours" or "1 ms". The units of measure are captured as first-class values in the language, and not hidden in comments nor implied in APIs.
<
do
t = eval[input["Enter amount of time to sleep: ", "1 second"]]
Line 753 ⟶ 1,374:
sleep[t]
println["Awake!"]
</syntaxhighlight>
=={{header|Go}}==
Technically, this varies from the task by sleeping the main ''goroutine'' rather than the main ''thread''. The Go runtime multiplexes goroutines to operating system threads and the language does not provide direct access to threads.
<
import "time"
Line 769 ⟶ 1,390:
time.Sleep(time.Duration(sec * float64(time.Second)))
fmt.Println("\nAwake!")
}</
=={{header|Groovy}}==
Solution:
<
println("Sleeping...")
sleep(it)
println("Awake!")
}</
Test:
<
print '''
Hmmm. That was... less than satisfying.
Line 791 ⟶ 1,412:
}
}
sleepTest(5000)</
Output:
Line 809 ⟶ 1,430:
=={{header|Haskell}}==
<
main = do seconds <- readLn
putStrLn "Sleeping..."
threadDelay $ round $ seconds * 1000000
putStrLn "Awake!"</
=={{header|HicEst}}==
<
WRITE(StatusBar) "Sleeping ... "
SYSTEM(WAIT = milliseconds)
WRITE(Messagebox) "Awake!"</
=={{header|Icon}} and {{header|Unicon}}==
<
repeat {
Line 834 ⟶ 1,455:
delay(1000 * s)
write("Awake!")
end</
=={{header|IDL}}==
<syntaxhighlight lang="idl">
read,i,prompt='Input sleep time in seconds: '
print,'Sleeping...'
wait,i ; in seconds, but accepts floats(/fractional) as input
print,'Awake!'
</syntaxhighlight>
=={{header|J}}==
'''Solution''':
<
sleeping=: monad define
Line 854 ⟶ 1,475:
sleep y
smoutput 'Awake!'
)</
'''Example''':
<
Sleeping...
Awake!</
=={{header|Java}}==
{{works with|Java|1.5+}}
<
import java.util.InputMismatchException;
import java.util.Scanner;
Line 878 ⟶ 1,499:
}
}
}</
===Using Java 8===
<syntaxhighlight lang="java">
import java.util.InputMismatchException;
import java.util.Scanner;
import java.util.concurrent.TimeUnit;
public final class Sleep {
public static void main(String[] args) {
try {
System.out.println("Enter time to sleep in milliseconds:");
Scanner scanner = new Scanner(System.in);
final int delay = scanner.nextInt();
scanner.close();
System.out.println("Sleeping...");
TimeUnit.MILLISECONDS.sleep(delay);
System.out.println("Awake!");
} catch (InputMismatchException | InterruptedException exception) {
exception.printStackTrace(System.err);;
}
}
}
</syntaxhighlight>
{{ out }}
<pre>
Enter time to sleep in milliseconds:
4321
Sleeping...
Awake!
</pre>
=={{header|JavaScript}}==
===(in a web browser)===
Generally, JavaScript in a web browser is event-loop based and (except for alert()) non-blocking. So, the closest thing possible to the task description is to do something once the specified time has passed.
<
setTimeout(function () {
Line 892 ⟶ 1,548:
document.write('Sleeping... ');
</script></
=={{header|jq}}==
`sleep($n)` will pause (busily) for at least the given time period, measured in seconds.
The excess time slept, namely `$n | sleep(.) - .`, will likely be less than some particular value on each platform, e.g. 0.00001 seconds on a 3GHz machine.
<syntaxhighlight lang="jq">
# Pseudosleep for at least the given number of $seconds (a number)
# and emit the actual number of seconds that have elapsed.
def sleep($seconds):
now
| . as $now
| until( . - $now >= $seconds; now)
| . - $now ;
</syntaxhighlight>
=={{header|Jsish}}==
<syntaxhighlight lang="javascript">/*
Sleep, in Jsish
*/
printf('Sleep time (in milliseconds)? ');
var ms = parseInt(console.input());
puts('Sleeping...');
sleep(ms);
puts('Awake!');</syntaxhighlight>
=={{header|Julia}}==
<syntaxhighlight lang="julia">
print("Please enter sleep duration in seconds: ")
input = int(readline(STDIN))
Line 902 ⟶ 1,584:
sleep(input)
println("Awake!")
</syntaxhighlight>
=={{header|Kotlin}}==
<syntaxhighlight lang="scala">// version 1.0.6
fun main(args: Array<String>) {
print("Enter number of milliseconds to sleep: ")
val ms = readLine()!!.toLong()
println("Sleeping...")
Thread.sleep(ms)
println("Awake!")
}</syntaxhighlight>
Sample input/output:
{{out}}
<pre>
Enter number of milliseconds to sleep: 3000
Sleeping...
Awake!
</pre>
=={{header|LabVIEW}}==
Line 908 ⟶ 1,608:
<br/>{{VI snippet}}<br/>
[[File: Sleep.png]]
=={{header|Lang}}==
<syntaxhighlight lang="lang">
$ms = fn.long(fn.input())
fn.println(Sleeping...)
fn.sleep($ms)
fn.println(Awake!)
</syntaxhighlight>
=={{header|Lasso}}==
Lasso has a built in sleep command that accepts milliseconds as an input.
<
sleep(5000) // Sleep 5 seconds
stdoutnl('Awake!')</
=={{header|Lhogho}}==
The Logo version works without modification. Another way to Sleep, in the Windows version of Lhogho, is to use the Win32 function, viz
<
make "Long "U4
make "kernel32_handle libload "kernel32.dll
Line 929 ⟶ 1,637:
Sleep :n ; units: 1/1000th of a second
print [Awake.]
end</
=={{header|Liberty BASIC}}==
<
Print "Sleeping..."
CallDLL #kernel32, "Sleep", sleeptime As long, ret As void
Print "Awake!"
</syntaxhighlight>
=={{header|Lingo}}==
{{libheader|CommandLine Xtra}}
<syntaxhighlight lang="lingo">on doSleep (ms)
put "Sleeping..."
sleep(ms)
put "Awake!"
end</syntaxhighlight>
=={{header|Logo}}==
<
to sleep :n
print [Sleeping...]
Line 945 ⟶ 1,661:
print [Awake.]
end
</syntaxhighlight>
=={{header|Logtalk}}==
Works when using SWI-Prolog, XSB, or YAP as the backend compilers:
<
:- object(sleep).
Line 960 ⟶ 1,676:
:- end_object.
</syntaxhighlight>
Sample output:
<
| ?- sleep::how_long(5).
Sleeping ...
... awake!
yes
</syntaxhighlight>
=={{header|Lua}}==
{{libheader|LuaSocket}}
The input does not need to be a whole number, eg. "0.5" would cause the program to wait for half a second.
<syntaxhighlight lang="lua">local socket = require("socket")
io.write("Input a number of seconds to sleep: ")
local input = io.read("*number")
print("Sleeping")
socket.sleep(input)
print("Awake!")</syntaxhighlight>
A similar effect could be achieved using a "busy" loop but the function in lua-socket is gentler on your CPU.
=={{header|M2000 Interpreter}}==
Statement Wait pause the current thread but other threads from module (not in this example) may run.
<syntaxhighlight lang="m2000 interpreter">
Module CheckIt {
Input "Input a number of milliseconds to sleep:", N
Print "Sleeping..."
Wait N
Print "Awake"
}
CheckIt
</syntaxhighlight>
=={{header|Maple}}==
<
print("Sleeping...");
Threads:-Sleep(secs);
print("Awake!");
end proc:</
=={{header|Mathematica}}/{{header|Wolfram Language}}==
This function, as you can probably guess, takes its argument in seconds.
While this function does tie up execution (but not with a busy wait), the Mathematica front end remains fully functional and can be used to stop the sleeping with Evaluation -> Abort Evaluation.
<syntaxhighlight lang="mathematica">Sleep[seconds_] := (Print["Sleeping..."]; Pause[seconds]; Print["Awake!"];)</syntaxhighlight>
=={{header|MATLAB}} / {{header|Octave}}==
<
time = input('How many seconds would you like me to sleep for? ');
Line 993 ⟶ 1,729:
disp('Awake!');
end</
=={{header|min}}==
{{works with|min|0.19.6}}
<syntaxhighlight lang="min">"Enter number of milliseconds to sleep" ask int
"Sleeping..." puts!
sleep
"Awake!" puts!</syntaxhighlight>
=={{header|Nanoquery}}==
<syntaxhighlight lang="nanoquery">time = int(input("time to sleep (ms): "))
println "Sleeping..."
sleep(time)
println "Awake!"</syntaxhighlight>
=={{header|Nemerle}}==
<
using System.Console;
using System.Threading.Thread; // this is where the Sleep() method comes from
Line 1,009 ⟶ 1,759:
WriteLine("Awake!");
}
}</
=={{header|NetRexx}}==
<
options replace format comments java crossref symbols nobinary
Line 1,049 ⟶ 1,799:
say
return
</syntaxhighlight>
=={{header|NewLISP}}==
<
(sleep 2000) ; Wait for 2 seconds
(println "Awake!")</
=={{header|Nim}}==
<
echo
var timed =
echo
sleep
echo
=={{header|NS-HUBASIC}}==
The <code>PAUSE</code> statement pauses execution for a length of time expressed in terms of the frame rate of the television you are using as a monitor.
<syntaxhighlight lang="ns-hubasic">10 PRINT "I'LL TELL YOU WHEN I BECOME AWAKE AGAIN..."
20 PAUSE 100
30 PRINT "NOW I'M AWAKE AGAIN."</syntaxhighlight>
=={{header|Objeck}}==
<
bundle Default {
class Test {
Line 1,078 ⟶ 1,834:
}
}
</syntaxhighlight>
=={{header|Objective-C}}==
Line 1,085 ⟶ 1,841:
{{works with|GNUstep}} and {{works with|Cocoa}}
<
int main()
Line 1,101 ⟶ 1,857:
}
return 0;
}</
=={{header|OCaml}}==
<
let seconds = read_int ();;
print_endline "Sleeping...";;
Unix.sleep seconds;; (* number is integer in seconds *)
print_endline "Awake!";;</
or
<
#directory "+threads";;
#load "threads.cma";;
Line 1,118 ⟶ 1,874:
print_endline "Sleeping...";;
Thread.delay seconds;; (* number is in seconds ... but accepts fractions *)
print_endline "Awake!";;</
=={{header|Oforth}}==
<
=={{header|ooRexx}}==
<
Call sysSleep 10 -- wait 10 seconds
Say time()</
{{out}}
<pre>14:23:40
14:23:50</pre>
=={{header|Oz}}==
<
class TextFile from Open.file Open.text end
StdIn = {New TextFile init(name:stdin)}
Line 1,140 ⟶ 1,895:
{System.showInfo "Sleeping..."}
{Delay WaitTime} %% in milliseconds
{System.showInfo "Awake!"}</
=={{header|PARI/GP}}==
Line 1,147 ⟶ 1,902:
===gettime===
The units are milliseconds.
<
print("Sleeping...");
while((ms-=gettime()) > 0,);
Line 1,153 ⟶ 1,908:
};
sleep(input())</
===alarm===
{{works with|PARI/GP|2.4.3 and above on Linux}}
The units are seconds.
<
print("Sleeping...");
alarm(s);
Line 1,165 ⟶ 1,920:
};
sleep(input())</
=={{header|Pascal}}==
Line 1,172 ⟶ 1,927:
=={{header|Peloton}}==
Literate mode
<
<@ SAYLIT>Sleeping</@>
<@ ACTPAUVAR>secs</@>
<@ SAYLIT>Awake</@></
French variable-length opcodes
<
<# MontrezLittéralement>Sleeping</#>
<# AgissezFaireUnePauseVariable>secs</#>
<# MontrezLittéralement>Awake</#></
(Simplified) Chinese fixed-length opcodes
<
<@ 显示_字串_>Sleeping</@>
<@ 运行_暂停动变量_>secs</@>
<@ 显示_字串_>Awake</@></
=={{header|Perl}}==
seconds:
<
print "Sleeping...\n";
sleep $seconds; # number is in seconds
print "Awake!\n";</
microseconds and nanoseconds using the Time::HiRes module:
<
$microseconds = <>;
Line 1,208 ⟶ 1,963:
print "Sleeping...\n";
nanosleep $nanoseconds;
print "Awake!\n";</
It's also possible to sleep for fractional seconds by abusing the select function:
<
select undef, undef, undef, 0.5;
say "Awake!";</
=={{header|
{{libheader|Phix/basics}}
<!--<syntaxhighlight lang="phix">-->
<span style="color: #008080;">without</span> <span style="color: #008080;">js</span> <span style="color: #000080;font-style:italic;">-- (prompt_number, sleep)</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">a</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">prompt_number</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"wait for duration (in seconds, 0..20):"</span><span style="color: #0000FF;">,</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">0</span><span style="color: #0000FF;">,</span><span style="color: #000000;">20</span><span style="color: #0000FF;">})</span>
<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"Sleeping...\n"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">sleep</span><span style="color: #0000FF;">(</span><span style="color: #000000;">a</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"Awake!\n"</span><span style="color: #0000FF;">)</span>
<!--</syntaxhighlight>-->
Note that sleep() is entirely inappropriate for GUI applications, which should instead set a routine to resume processing
(that would be timer_cb below), activate a timer (set RUN to true), and relinquish control to the event loop. Another
excellent way to perform extended processing without making an application unresponsive is via an IDLE_ACTION, provided
that also regularly relinquishes control to the event loop, and can pick up where it left off when next invoked.
<!--<syntaxhighlight lang="phix">(phixonline)-->
<span style="color: #000080;font-style:italic;">-- demo\rosetta\sleep.exw</span>
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
<span style="color: #008080;">include</span> <span style="color: #000000;">pGUI</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
<span style="color: #004080;">Ihandle</span> <span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">state</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">label</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">slider</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">snooze</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">timer</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">timer_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000080;font-style:italic;">/*timer*/</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">state</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"TITLE"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"awake"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetInt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">timer</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"RUN"</span><span style="color: #0000FF;">,</span><span style="color: #004600;">false</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_CONTINUE</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">slider_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000080;font-style:italic;">/*slider*/</span><span style="color: #0000FF;">)</span>
<span style="color: #004080;">atom</span> <span style="color: #000000;">v</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupGetDouble</span><span style="color: #0000FF;">(</span><span style="color: #000000;">slider</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"VALUE"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetInt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">timer</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"TIME"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">v</span><span style="color: #0000FF;">*</span><span style="color: #000000;">1000</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetStrAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">label</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"TITLE"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"%3.1fs"</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">v</span><span style="color: #0000FF;">})</span>
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_CONTINUE</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #008080;">function</span> <span style="color: #000000;">snooze_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000080;font-style:italic;">/*snooze*/</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">state</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"TITLE"</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"asleep"</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetInt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">timer</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"RUN"</span><span style="color: #0000FF;">,</span><span style="color: #004600;">true</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_CONTINUE</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
<span style="color: #7060A8;">IupOpen</span><span style="color: #0000FF;">()</span>
<span style="color: #000000;">state</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupLabel</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"awake"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">label</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupLabel</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"2.0s"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">slider</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupValuator</span><span style="color: #0000FF;">(</span><span style="color: #004600;">NULL</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"VALUECHANGED_CB"</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"slider_cb"</span><span style="color: #0000FF;">),</span><span style="color: #008000;">"MIN=1, MAX=15, VALUE=2, EXPAND=HORIZONTAL"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">snooze</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupButton</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Snooze"</span><span style="color: #0000FF;">,</span><span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"snooze_cb"</span><span style="color: #0000FF;">),</span><span style="color: #008000;">"EXPAND=HORIZONTAL"</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">dlg</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupDialog</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">IupVbox</span><span style="color: #0000FF;">({</span><span style="color: #7060A8;">IupHbox</span><span style="color: #0000FF;">({</span><span style="color: #7060A8;">IupLabel</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"state: "</span><span style="color: #0000FF;">),</span><span style="color: #000000;">state</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"ALIGNMENT=ACENTER"</span><span style="color: #0000FF;">),</span>
<span style="color: #7060A8;">IupHbox</span><span style="color: #0000FF;">({</span><span style="color: #7060A8;">IupLabel</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"Duration: "</span><span style="color: #0000FF;">),</span><span style="color: #000000;">label</span><span style="color: #0000FF;">,</span><span style="color: #000000;">slider</span><span style="color: #0000FF;">},</span><span style="color: #008000;">"ALIGNMENT=ACENTER"</span><span style="color: #0000FF;">),</span>
<span style="color: #7060A8;">IupHbox</span><span style="color: #0000FF;">({</span><span style="color: #000000;">snooze</span><span style="color: #0000FF;">})},</span>
<span style="color: #008000;">"MARGIN=10x10"</span><span style="color: #0000FF;">),</span>
<span style="color: #008000;">`TITLE="Snooze"`</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupSetAttributeHandle</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"STARTFOCUS"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">snooze</span><span style="color: #0000FF;">)</span>
<span style="color: #000000;">timer</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupTimer</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"timer_cb"</span><span style="color: #0000FF;">),</span><span style="color: #000000;">2000</span><span style="color: #0000FF;">,</span><span style="color: #004600;">false</span><span style="color: #0000FF;">)</span>
<span style="color: #7060A8;">IupShow</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">)</span>
<span style="color: #008080;">if</span> <span style="color: #7060A8;">platform</span><span style="color: #0000FF;">()!=</span><span style="color: #004600;">JS</span> <span style="color: #008080;">then</span>
<span style="color: #7060A8;">IupMainLoop</span><span style="color: #0000FF;">()</span>
<span style="color: #7060A8;">IupClose</span><span style="color: #0000FF;">()</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
<!--</syntaxhighlight>-->
=={{header|PHP}}==
seconds:
<
echo "Sleeping...\n";
sleep($seconds); # number is integer in seconds
echo "Awake!\n";</
microseconds:
<
echo "Sleeping...\n";
usleep($microseconds); # number is integer in microseconds
echo "Awake!\n";</
nanoseconds:
<
echo "Sleeping...\n";
time_nanosleep($seconds, $nanoseconds); # first arg in seconds plus second arg in nanoseconds
echo "Awake!\n";</
=={{header|PicoLisp}}==
<
(wait 2000) # Wait for 2 seconds
(prinl "Awake!")</
As [http://software-lab.de/doc/refW.html#wait wait] will continue executing
background events, another possibility (for a complete stop) is calling
some external program like
<
(call 'sleep 2) # Wait for 2 seconds
(prinl "Awake!")</
=={{header|Pike}}==
<syntaxhighlight lang="pike">int main() {
int seconds = (int)Stdio.stdin->gets();
write("Sleeping...\n");
sleep(seconds);
write("Awake!\n");
return 0;
}</syntaxhighlight>
=={{header|Pixilang}}==
<syntaxhighlight lang="pixilang">fputs("Sleeping...\n")
sleep(1000)
fputs("Awake!\n")</syntaxhighlight>
=={{header|PL/I}}==
<syntaxhighlight lang="pl/i">
put ('sleeping');
delay (2000); /* wait for 2 seconds (=2000 milliseconds). */
put ('awake');
</syntaxhighlight>
=={{header|Plain English}}==
<syntaxhighlight lang="plainenglish">To run:
Start up.
Demonstrate waiting.
Wait for the escape key.
Shut down.
To demonstrate waiting:
Write "How many milliseconds should I wait? " to the console without advancing.
Read some milliseconds from the console.
Write "Sleeping..." to the console.
Wait for the milliseconds.
Write "Awake!" to the console.</syntaxhighlight>
=={{header|PowerShell}}==
<
Write-Host Sleeping ...
Start-Sleep $d
Write-Host Awake!</
The <code>-Milliseconds</code> parameter to <code>Start-Sleep</code> can be used to allow for sub-second precision in sleeping.
=={{header|Prolog}}==
Works with SWI-Prolog.
<
writeln('Sleeping...'),
sleep(Time),
writeln('Awake!').
</syntaxhighlight>
=={{header|PureBasic}}==
Sleeping is performed with Delay() and a value in milliseconds. The time is accurate to approximately +/- 15 milliseconds.
<
Print("Enter a time(milliseconds) to sleep: ")
Line 1,291 ⟶ 2,117:
Input()
CloseConsole()
EndIf</
=={{header|Python}}==
<
seconds = float(raw_input())
print "Sleeping..."
time.sleep(seconds) # number is in seconds ... but accepts fractions
print "Awake!"</
=={{header|R}}==
The call to flush.console is only needed if buffering is turned on. See [http://cran.r-project.org/bin/windows/base/rw-FAQ.html#The-output-to-the-console-seems-to-be-delayed FAQ for R on windows]. The time is given in seconds (fractions allowed, resolution is system dependent).
<syntaxhighlight lang="r">
sleep <- function(time=1)
{
Line 1,314 ⟶ 2,140:
sleep()
</syntaxhighlight>
=={{header|Racket}}==
<
#lang racket
(displayln "Enter a time (in seconds): ")
Line 1,325 ⟶ 2,151:
(sleep time)
(displayln "Awake!"))
</syntaxhighlight>
=={{header|Raku}}==
(formerly Perl 6)
The <tt>sleep</tt> function argument is in units of seconds, but these may be fractional (to the limits of your system's clock).
<syntaxhighlight lang="raku" line>my $sec = prompt("Sleep for how many microfortnights? ") * 1.2096;
say "Sleeping...";
sleep $sec;
say "Awake!";</syntaxhighlight>
Note that 1.2096 is a rational number in Raku, not floating point, so precision can be maintained even when dealing with very small powers of ten.
=={{header|RapidQ}}==
<syntaxhighlight lang="vb">
input "Enter the number of seconds to sleep: ";s
sleep s
print "I'm awake I think..."
input "Press enter to quit";a$
</syntaxhighlight>
=={{header|REBOL}}==
<
Title: "Sleep Main Thread"
URL: http://rosettacode.org/wiki/Sleep_the_Main_Thread
]
Line 1,346 ⟶ 2,182:
print "Sleeping..."
wait naptime
print "Awake!"</
=={{header|Red}}==
<syntaxhighlight lang="red">
str-time: to integer! ask "Enter wait time " ;get user input , convert to integer
print "waiting"
wait str-time ;Seconds
print "awake"</syntaxhighlight>
=={{header|Retro}}==
Retro has no fine grained timer; so we have to make due with seconds.
<
[ time [ time over - 1 > ] until drop ] times ;
: test
"\nTime to sleep (in seconds): " puts getToken toNumber
"\nSleeping..." sleep
"\nAwake!\n" ;</
=={{header|REXX}}==
Line 1,365 ⟶ 2,208:
Note: the above two REXX interpreters support fractional seconds.
<
parse arg secs . /*obtain optional argument from the CL.*/
if secs=='' | secs=="," then secs=0 /*Not specified? Then assume 0 (zero).*/
Line 1,371 ⟶ 2,214:
call delay secs /*Snooze. Hopefully, just a short nap.*/
say 'Awake!' /*and now inform invoker we're running.*/
/*stick a fork in it, we're all done. */</
'''output''' when using the following for input: <tt> 4.7 </tt>
<pre>
Line 1,380 ⟶ 2,223:
===using the DELAY routine===
The above REXX program (using DELAY) will work with most REXXes:
:::* CMS REXX
:::* PC/REXX (see note)
:::* Personal REXX (see note)
:::* REGINA REXX
:::* ROO REXX
:::* R4 REXX
:::* TSO REXX
:::* (Microsoft) DOS
:::* (Microsoft) Windows
:::* any system that supports the PING command
when used in conjunction with the following program (either external or imbedded).
<br>Note: when PC/REXX or Personal REXX are used, those REXXes already have a built-in function (BIF), so the '''delay''' subroutine (below) will never be executed, but for other REXXes, the
This REXX program only uses whole seconds (fractional seconds are ignored).
<
trace off /*suppress REXX error
parse arg ! /*obtain all the arguments. */
if !all(arg()) then exit /*documentation requested ? */
if !cms then address '' /*if CMS, then use fast cmd path.*/
signal on halt /*handle HALT gracefully. */
signal on noValue /*handle the REXX noValue error. */
signal on syntax /*handle the REXX syntax errors. */
/*┌────────────────────────────────────────────────────────────────────┐
┌─┘ The DELAY function is used to delay (wait) a specific amount of └─┐
│ (wall-clock) time specified in seconds. Any fraction part is ignored.│
│ │
│ If the REXX program invoking DELAY function is running under PC/REXX │
│ or Personal REXX, this REXX program should never be invoked as those │
└─┐ REXXes have their own built-in function (BIF) named "DELAY". ┌─┘
└────────────────────────────────────────────────────────────────────┘*/
@cpsleep = 'CP SLEEP' /*point to the (CP) SLEEP
@ping = 'PING' /*
parse var ! n _ /*parse argument from the parms. */
if _\=='' | arg()>1 then call er 59 /*are there too many
if n=='' then n=1 /*
if \isNum(n) then call er 53,n 'delay-seconds' /*is n not numeric? Error. */
n=n%1 /*elide any fractional
if n<=0 then return 0
/* ┌────────────────────┐ */
Line 1,426 ⟶ 2,269:
/* └────────────────────┘ */
select
when !cms then @cpsleep n%1 "SEC" /*is this CMS?
when !tso then call sleep n%1 /* " " TSO?
when !regina then call sleep n%1 /* " " Regina?
when !dos then @ping '-n' n "127.0.0.1 > NUL" /* " " DOS?
otherwise nop
end /*select*/
return 0 /*return a zero value
/*─────────────────────────────general 1─line subroutines───────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────────*/
!all: !!=!;!=space(!);upper !;call !fid;!nt=right(!var('OS'),2)=="NT";!cls=word('CLS VMFCLEAR CLRSCREEN',1+!cms+!tso*2);if arg(1)\==1 then return 0;if wordpos(!,"? ?SAMPLES ?AUTHOR ?FLOW")==0 then return 0;!call=']$H';call "$H" !fn !;!call=;return 1
!cal: if symbol('!CALL')\=="VAR" then !call=; return !call
!env: !env='ENVIRONMENT'; if !sys=="MSDOS" | !brexx | !r4 | !roo then !env='SYSTEM'; if !os2 then !env="OS2"!env; !ebcdic=3=='f3'x; if !crx then !env="DOS"; return
!
!
!
!var: call !fid; if !kexx then return space(dosenv(arg(1))); return space(value(arg(1), , !env))
er: parse arg _1,_2; call '$ERR' "14"p(_1) p(word(_1,2) !fid(1)) _2; if _1<0 then return _1; exit result
p: return word(arg(1), 1)
halt: call er .1
isNum: return datatype(arg(1), 'N')
noValue: !sigl=sigl; call er 17, !fid(2) !fid(3) !sigl condition('D') sourceline(!sigl)
syntax: !sigl=sigl; call er 13, !fid(2) !fid(3) !sigl !cal() condition('D') sourceline(!sigl)</
Coding note: the '''!''' subroutines (above) deal mostly with determining what version of REXX is being invoked and what operating system is being used; and based on that information, appropriate flags (variables) are set. This is an example of a robust boilerplate code checking for various versions of REXX and operating systems, and it also defines additional flags not used within this particular program.
Programming note: The subroutine '''$ERR''' isn't included here; so here is the gist of the error messages:
::* er 59 too many arguments specified for the ─── DELAY ─── command.
::* er 53 argument ─── xxx ─── isn't numeric for the option ─── delay-seconds ─── for the ─── DELAY ─── command.
=={{header|Ring}}==
<
load "guilib.ring"
for n = 1 to 10
see "" + n + " "
next
see nl
func
nTime = x * 1000
oTest = new qTest
oTest.qsleep(nTime)
</syntaxhighlight>
Output:
Line 1,475 ⟶ 2,317:
<pre>
1 2 3 4 5 6 7 8 9 10
</pre>
=={{header|RPL}}==
{| class="wikitable"
! RPL code
! Comment
|-
|
≪
CLLD "Sleeping..." 1 DISP
WAIT
CLMF "Awake!"
≫ ‘'''SLEEP'''’ STO
|
'''SLEEP''' ''( seconds -- "Awake!" )''
clear screen and display message on top of screen
sleep the given number of seconds
reactivate the stack display
|}
{{in}}
<pre>
10 SLEEP
</pre>
=={{header|Ruby}}==
<
puts "Sleeping..."
sleep(seconds) # number is in seconds ... but accepts fractions
# Minimum resolution is system dependent.
puts "Awake!"</
=={{header|Rust}}==
<syntaxhighlight lang="rust">use std::{io, time, thread};
fn main() {
println!("How long should we sleep in milliseconds?");
let mut sleep_string = String::new();
io::stdin().read_line(&mut sleep_string)
.expect("Failed to read line");
let sleep_timer: u64 = sleep_string.trim()
.parse()
.expect("Not an integer");
let sleep_duration = time::Duration::from_millis(sleep_timer);
println!("Sleeping...");
thread::sleep(sleep_duration);
println!("Awake!");
}</syntaxhighlight>
=={{header|Scala}}==
{{libheader|Scala}}<
print("Enter sleep time in milli sec: ")
val ms = scala.io.StdIn.readInt()
Line 1,493 ⟶ 2,378:
Thread.sleep(ms)
println(s"Awaked after [${scala.compat.Platform.currentTime - sleepStarted} ms]1")
}</
=={{header|Scheme}}==
Line 1,500 ⟶ 2,385:
The following works in Chicken Scheme:
<
(use format)
(use srfi-18)
Line 1,512 ⟶ 2,397:
(format #t "Awake!~&"))
(format #t "You must enter a number~&")))
</syntaxhighlight>
Scheme implementations also provide alternative approaches. For example, Chicken Scheme has a 'posix' library which includes a 'sleep' function.
Line 1,520 ⟶ 2,405:
The [http://seed7.sourceforge.net/libraries/duration.htm duration.s7i] library defines the function ''wait'', which takes an argument of type ''duration''. Functions to create durations with years, months, days, hours, minutes, seconds and micro seconds exist also.
<
include "duration.s7i";
Line 1,532 ⟶ 2,417:
wait(secondsToSleep . SECONDS);
writeln("Awake!");
end func;</
=={{header|SenseTalk}}==
SenseTalk understands time durations expressed in any units, including: seconds, minutes, days, microseconds, shakes, and jiffies!
<syntaxhighlight lang="sensetalk">
ask "How long would you like to sleep?" message "Your answer may include any duration, such as 5 seconds, 2 hours, or even 3 centuries!"
get the value of it
if it is a duration then
put it into sleepyTime
else
answer "Sorry, that wasn't a valid duration!"
exit all
end if
put "Sleeping for " & sleepyTime & "..."
wait sleepyTime
put "Awake!"
</syntaxhighlight>
=={{header|Sidef}}==
<
say "Sleeping...";
Sys.sleep(sec); # in seconds
#Sys.usleep(sec); # in microseconds
#Sys.nanosleep(sec); # in nanoseconds
say "Awake!";</
=={{header|Smalltalk}}==
{{works with|Pharo}}
<
Transcript show: 'Sleeping...'.
(Delay forSeconds: t) wait.
Transcript show: 'Awake!'.
</syntaxhighlight>
{{works with|Smalltalk/X}}
<
Transcript show: 'Sleeping...'.
(Delay forSeconds: t) wait.
Transcript show: 'Awake!'.
</syntaxhighlight>
(of course, you can "Smalltalk at:#FillInTheBlankMorph put:Dialog", to be source compatible with Pharo)
=={{header|SparForte}}==
As a structured script.
<syntaxhighlight lang="ada">#!/usr/local/bin/spar
pragma annotate( summary, "sleep_demo" );
pragma annotate( description, "Write a program that does the following in this order:" );
pragma annotate( description, "" );
pragma annotate( description, "* Input an amount of time to sleep in whatever units are" );
pragma annotate( description, "most natural for your language (milliseconds, seconds," );
pragma annotate( description, "ticks, etc.). This unit should be noted in comments or" );
pragma annotate( description, "in a description." );
pragma annotate( description, "* Print 'Sleeping...'" );
pragma annotate( description, "* Sleep the main thread for the given amount of time." );
pragma annotate( description, "* Print 'Awake!'" );
pragma annotate( description, "* End." );
pragma annotate( see_also, "http://rosettacode.org/wiki/Sleep" );
pragma annotate( author, "Ken O. Burtch" );
pragma license( unrestricted );
procedure sleep_demo is
in_val : duration;
begin
? "Number of seconds to sleep?";
in_val := numerics.value( get_line );
-- Using delay
? "Sleeping...";
delay in_val;
? "Awake!";
-- Using Linux/UNIX sleep
? "Sleeping...";
sleep "$in_val" ;
? "Awake!";
end sleep_demo;</syntaxhighlight>
=={{header|Standard ML}}==
<
let val seconds = valOf (Int.fromString (valOf (TextIO.inputLine TextIO.stdIn))) in
TextIO.print "Sleeping...\n";
Line 1,565 ⟶ 2,504:
I dunno why; it doesn't say anything about this in the documentation *)
TextIO.print "Awake!\n"
end)</
=={{header|Stata}}==
<syntaxhighlight lang="stata">program sleep_awake
* pass duration in milliseconds
display "Sleeping..."
sleep `0'
display "Awake!"
end
sleep_awake 2000</syntaxhighlight>
=={{header|Suneido}}==
<
{
Print("Sleeping...")
Sleep(time) // time is in milliseconds
Print("Awake!")
}</
=={{header|Swift}}==
<
println("Enter number of seconds to sleep")
Line 1,585 ⟶ 2,534:
NSThread.sleepForTimeInterval(interval)
println("Awake!")</
=={{header|Tcl}}==
Blocking example (the process is blocked preventing any background activity).
<
flush stdout
set millis [gets stdin]
puts Sleeping...
after $millis
puts Awake!</
A non-blocking example where background activity will occur.
<
flush stdout
set millis [gets stdin]
Line 1,604 ⟶ 2,553:
after $millis set ::wakeupflag 1
vwait ::wakeupflag
puts Awake!</
=={{header|TI-89 BASIC}}==
Line 1,635 ⟶ 2,584:
=={{header|TUSCRIPT}}==
<
$$ MODE TUSCRIPT
secondsrange=2
Line 1,641 ⟶ 2,590:
WAIT #secondsrange
PRINT "Awake after Naping ",secondsrange, " seconds"
</syntaxhighlight>
=={{header|TXR}}==
<syntaxhighlight lang="txrlisp">(let ((usec (progn (put-string "enter sleep usecs: ")
(tointz (get-line)))))
(put-string "Sleeping ... ")
(flush-stream)
(usleep usec)
(put-line "Awake!"))</syntaxhighlight>
=={{header|UNIX Shell}}==
<
read seconds
echo "Sleeping..."
sleep "$seconds"
echo "Awake!"</
This uses the [http://www.openbsd.org/cgi-bin/man.cgi?query=sleep&apropos=0&sektion=1&manpath=OpenBSD+Current&arch=i386&format=html sleep(1)] command. POSIX sleep(1) only takes an integer, as in <tt>sleep 2</tt>, so you can only sleep for a whole number of seconds. Some systems extend sleep(1) to take a decimal fraction, as in <tt>sleep 2.5</tt>.
=={{header|Ursa}}==
<syntaxhighlight lang="ursa">out "Sleeping..." endl console
# sleep for 5 seconds (5000 milliseconds)
sleep 5000
out "Awake!" endl console</syntaxhighlight>
=={{header|VBA}}==
<syntaxhighlight lang="vba">
Function Sleep(iSecsWait As Integer)
Debug.Print Now(), "Sleeping..."
Line 1,659 ⟶ 2,623:
Debug.Print Now(), "Awake!"
End Function
</syntaxhighlight>
=={{header|VBScript}}==
<syntaxhighlight lang="vbscript">
iSeconds=InputBox("Enter a time in seconds to sleep: ","Sleep Example for RosettaCode.org")
WScript.Echo "Sleeping..."
WScript.Sleep iSeconds*1000 'Sleep is done in Milli-Seconds
WScript.Echo "Awake!"
</syntaxhighlight>
<!--Out of alphabetical order to keep the VB languages together-->
=={{header|Vedit macro language}}==
<
Message("Sleeping...\n")
Sleep(#1)
Message("Awake!\n")</
=={{header|Visual Basic .NET}}==
<syntaxhighlight lang="vbnet">Module Program
Sub Main()
Dim millisecondsSleepTime = Integer.Parse(Console.ReadLine(), Globalization.CultureInfo.CurrentCulture)
Console.WriteLine("Sleeping...")
Threading.Thread.Sleep(millisecondsSleepTime)
Console.WriteLine("Awake!")
End Sub
End Module</syntaxhighlight>
=={{header|V (Vlang)}}==
<syntaxhighlight lang="v (vlang)">import time
import os
fn main() {
sec := os.input("Enter number of seconds to sleep: ").i64()
println("Sleeping…")
time.sleep(time.Duration(sec * time.second))
println("Awake!")
}</syntaxhighlight>
=={{header|Wren}}==
<syntaxhighlight lang="wren">import "timer" for Timer
import "io" for Stdin, Stdout
System.write("Enter time to sleep in seconds: ")
Stdout.flush()
var secs
while (true) {
secs = Num.fromString(Stdin.readLine())
if (secs == null) {
System.print("Not a number try again.")
} else break
}
System.print("Sleeping...")
Timer.sleep((secs*1000).floor)
System.print("Awake!")</syntaxhighlight>
{{out}}
Sample session:
<pre>
Enter time to sleep in seconds: 10
Sleeping...
Awake!
</pre>
=={{header|X86 Assembly}}==
==={{header|NASM 2.15}}===
<syntaxhighlight lang="asm">
%macro sysdef 2
%define sys_%1 %2
%endmacro
sysdef write, 1
sysdef exit, 60
sysdef nanosleep, 35
%macro inv 1-7 0,0,0,0,0,0
mov r9,%7
mov r8,%6
mov r10,%5
mov rdx,%4
mov rsi,%3
mov rdi,%2
mov rax,sys_%1
syscall
%endmacro
section .data
timeval:
tv_sec dq 0
tv_nsec dq 0
section .rodata
str1 db "Sleeping",0xa,0
str2 db "Awake!",0xa,0
section .text
global main
main:
lea rbx, [rel str1]
inv write, 1, rbx, 9
mov qword [rel tv_sec], 5
mov qword [rel tv_nsec], 0
lea rax, [rel timeval]
inv nanosleep, rax, 0
lea rbx, [rel str2]
inv write, 1, rbx, 7
lea rbx, [rel str2]
inv exit, 0
ret
</syntaxhighlight>
This sleep subroutine takes the number of seconds to sleep as a parameter.
The actual linux syscall that I use to implement this takes a time struct (seconds at the first qword and nanoseconds at the second) as the first argument. Optionally you can pass another time stuct as a second argument. In the event that the sleep is interrupted by a system event, linux will fill this second struct with the remaining time so the syscall can be called again with the remaining sleep time.
<syntaxhighlight lang="x86asm">
; x86_64 linux nasm
section .text
Sleep:
mov rsi, 0 ; we wont use the second sleep arg, pass null to syscall
sub rsp, 16
mov qword [rsp], rdi ; number of seconds the caller requested
mov qword [rsp + 8], rsi ; we won't use the nanoseconds
mov rdi, rsp ; pass the struct that's on the stack to
mov rax, 35 ; sys_nanosleep
syscall
add rsp, 16 ; clean up stack
ret
</syntaxhighlight>
=={{header|XPL0}}==
<syntaxhighlight lang="xpl0">int Microseconds;
[Microseconds:= IntIn(0);
Text(0, "Sleeping...^m^j");
DelayUS(Microseconds);
Text(0, "Awake!^m^j");
]</syntaxhighlight>
=={{header|zig}}==
<syntaxhighlight lang="zig">const std = @import("std");
const time = std.time;
const warn = std.debug.warn;
pub fn main() void {
warn("Sleeping...\n");
time.sleep(1000000000); // `sleep` uses nanoseconds
warn("Awake!\n");
}</syntaxhighlight>
=={{header|zkl}}==
<
println("Sleeping...");
Atomic.sleep(seconds); # float, usually millisecond resolution
println("Awake!");</
=={{header|Zoomscript}}==
For typing:
<syntaxhighlight lang="zoomscript">print "Sleeping..."
wait 1
println
print "Awake!"</syntaxhighlight>
For importing:
¶0¶print "Sleeping..."¶0¶wait 1¶0¶println¶0¶print "Awake!"
{{omit from|M4}}
|