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ThreadJoin
Last update:
Jun 9, 2026
Description
Makes the current thread wait until the thread or threads specified complete processing.
Category
Function syntax
ThreadJoin([threadName], [timeout])See also
History
ColdFusion 9: Added this function.
Parameters
| Parameter | Description |
threadName | The name of the thread or threads to join to the current thread. To specify multiple threads, use a comma-separated list. |
timeout | The number of milliseconds for which to suspend thread processing. |
Usage
Makes the current thread wait until the thread or threads specified in the {{threadName}}parameter complete processing, or until the period specified in the {{timeout}}parameter passes, before continuing processing.
- ThreadJoin(): Current thread waits for all ColdFusion threads to complete processing.
- ThreadJoin(threadName): Makes current thread wait for the specified thread to finish execution.
- ThreadJoin(threadName, timeout): Makes the current thread wait until execution timeout for one or many threads specified by threadName. If you do not specify a timeout and the thread you are joining to does not finish, the current thread also cannot finish processing.
Example
<cfscript>
thread name="t1"
{
sleep(5000);
}
thread name="t2"
{
threadjoin("t1",1000);
}
threadjoin("t2");
</cfscript>
<cfoutput>Status of the thread T1 = #t1.Status#<br></cfoutput>
<cfoutput>Status of the thread T2 = #t2.Status#<br></cfoutput>
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