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Sleep

Last updated on May 30, 2024 | Also applies to ColdFusion

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CFML Reference User Guide
ColdFusion functions
ColdFusion Tags
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  1. Application framework tags
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    1. cfdirectory
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    1. cfabort
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  10. Forms tags
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    8. cfsetting
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    1. cfcookie
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    3. cfparam
    4. cfregistry
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    6. cfschedule
    7. cfset
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  15. Other tags
    1. cfimage
    2. cflog
    3. cfregistry
3. Tags a-b
4. Tags c
  1. cfcache
  2. cfcalendar
  3. cfcase
  4. cfcatch
  5. cfchart
  6. cfchartdata
  7. cfchartseries
  8. cfclient
  9. cfclientsettings
  10. cfcol
  11. cfcollection
  12. cfcomponent
  13. cfcontent
  14. cfcontinue
  15. cfcookie
  16. Tags d-e
5. Tags f
6. Tags g-h
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  3. cfgrid
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  5. cfgridrow
  6. cfgridupdate
  7. cfheader
  8. cfhtmlhead
  9. cfhtmltopdf
  10. cfhtmltopdfitem
  11. cfhttp
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7. Tags i
  1. cfif
  2. cfimage
  3. cfimap
  4. cfimapfilter
  5. cfimpersonate
  6. cfimport
  7. cfinclude
  8. cfindex
  9. cfinput
  10. cfinsert
  11. cfinterface
  12. cfinvoke
  13. cfinvokeargument
8. Tags j-l
9. Tags m-o
10. Tags p-q
  1. cfparam
  2. cfpdf
  3. cfpdfform
  4. cfpdfformparam
  5. cfpdfparam
  6. cfpdfsubform
  7. cfpod
  8. cfpop
  9. cfpresentation
  10. cfpresentationslide
  11. cfpresenter
  12. cfprint
  13. cfprocessingdirective
  14. cfprocparam
  15. cfprocresult
  16. cfprogressbar
  17. cfproperty
  18. cfquery
  19. cfqueryparam
11. Tags r-s
  1. cfregistry
  2. cfreport
  3. cfreportparam
  4. cfrethrow
  5. cfreturn
  6. cfsavecontent
  7. cfschedule
  8. cfscript
  9. cfsearch
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  13. cfset
  14. cfsetting
  15. cfsharepoint
  16. cfsilent
  17. cfslider
  18. cfspreadsheet
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  20. cfstoredproc
  21. cfswitch
12. Tags t
  1. cftable
  2. cftextarea
  3. cftextinput
  4. cfthread
  5. cfthrow
  6. cftimer
  7. cftooltip
  8. cftrace
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  10. cftree
  11. cftreeitem
  12. cftry
13. Tags u-z
  1. cfupdate
  2. cfwddx
  3. cfwebsocket
  4. cfwindow
  5. cfxml
  6. cfzip
  7. cfzipparam
CFML Reference
1. Reserved words and variables
2. Ajax JavaScript functions
3. ColdFusion ActionScript functions
4. ColdFusion mobile functions
5. Application.cfc reference
6. Script functions implemented as CFCs
7. ColdFusion Flash Form style reference
8. ColdFusion event gateway reference
9. ColdFusion C++ CFX Reference
10. ColdFusion Java CFX reference
11. WDDX JavaScript Objects
Cloud services

Description

Causes the current thread to stop processing for a specified period of time.

Returns

Does not return a value.

Syntax

Sleep(duration)

History

ColdFusion 8: Added function

Parameters

Parameter	Description
duration	Time, in milliseconds, to stop processing the thread.

Description

The Sleep function is useful when one thread must wait until another thread performs some action. The thread that must wait uses the Sleep function to stop processing for a time, and, when it awakens, checks to see if the other thread is ready. If it is not, the thread can sleep again. This type of action is useful, for example, when one thread must wait for another thread to complete initialization operations that apply to both threads.The Sleep function behaves identically to the cfthread tag with an action attribute value of sleep.

Example

The following example has two threads. The second thread (threadB) uses the sleep function to ensure that the first thread (threadA) has completed before it starts processing.

<cfthread name="threadA" action="run">
<cfset thread.j=1>
<cfloop index="i" from="1" to="99999">
<cfset thread.j=thread.j+1>
</cfloop>
</cfthread>


<cfthread name="threadB" action="run">
<cfscript>
thread.sleepTimes=0;
thread.initialized=false;
while ((threadA.Status != "COMPLETED") && (threadA.Status
!= "TERMINATED")) {
sleep(500);
thread.sleeptimes++;
}
// Only do the post-initilization code if the threadA completed.
If (threadA.Status == "COMPLETED") {
thread.initialized=true;
// Post-initialization code would go here.
}
</cfscript>
</cfthread>

<!Join the threads. --->
<cfthread action="join" name="threadA,threadB" timeout="10000"/>



<cfoutput>
threadA index value: #threadA.j# 
threadA status: #threadA.Status# 
threadB status: #threadB.Status# 
threadB sleepTimes: #threadB.sleepTimes# 
threadB initialized: #threadB.initialized# 
</cfoutput>

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Sleep

Description

Returns

Category

Syntax

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Parameters

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Example

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