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

System Functions

cfthread

ColdFusion 8: Added function

Sleep(duration) 

Does not return a value.

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.

<!--- ThreadA loops to simulate an initialization activity that might take time. ---> 
<cfthread name="threadA" action="run"> 
        <cfset thread.j=1> 
        <cfloop index="i" from="1" to="99999"> 
         <cfset thread.j=thread.j+1>  
    </cfloop> 
</cfthread> 
 
<!--- ThreadB loops while threadA is not finished, sleeping for  
        1/2 second each time. --->  
<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"/> 
 
<!--- Display the thread information. ---> 
<!--- Different actions might be taken based on the thread status information. ---> 
<cfoutput> 
    threadA index value: #threadA.j#<br /> 
    threadA status: #threadA.Status#<br> 
    threadB status: #threadB.Status#<br> 
    threadB sleepTimes: #threadB.sleepTimes#<br> 
    threadB initialized: #threadB.initialized#<br> 
</cfoutput>