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> Unreal Engine API Reference > Runtime > Core > HAL > FThread > FThread::Join

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FThread::Join

Blocks the current thread until the thread identified by `this_ finishes its execution.

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Linux

References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/HAL/Thread.h
Include	#include "HAL/Thread.h"
Source	/Engine/Source/Runtime/Core/Private/HAL/Thread.cpp

Syntax

void Join()

Remarks

Blocks the current thread until the thread identified by this_ finishes its execution. The completion of the thread identified by this synchronizes with the corresponding successful return from Join(). No synchronization is performed on `this itself. Concurrently calling Join() on the same FThread object from multiple threads constitutes a data race that results in undefined behavior.