Codejock Developer Community : Memory Leak on creating threads http://forum.codejock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Tue, 07 Apr 2026 15:40:03 +0000 Thu, 14 Nov 2024 04:07:24 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 forum.codejock.com/RSS_post_feed.asp?TID=24520 <![CDATA[Codejock Developer Community]]> http://forum.codejock.com/forum_images/codejock-logo.gif http://forum.codejock.com/ <![CDATA[Memory Leak on creating threads : Thank you for your response. After...]]> http://forum.codejock.com/forum_posts.asp?TID=24520&PID=79065&title=memory-leak-on-creating-threads#79065 Author: Kudo Shinya
Subject: 24520
Posted: 14 November 2024 at 4:07am

Thank you for your response.
After further investigation, I was able to resolve the issue myself.

  1. The memory leak occurs not only with _beginthreadex but also with CreateThread.
  2. Calling AfxTermThread() at the end of the created thread resolves the memory leak.

By calling AfxTermThread() at the end of threads created with _beginthreadex and CreateThread, I was able to solve the problem.

Thank you.

]]> Thu, 14 Nov 2024 04:07:24 +0000 http://forum.codejock.com/forum_posts.asp?TID=24520&PID=79065&title=memory-leak-on-creating-threads#79065 <![CDATA[Memory Leak on creating threads : Hello Shinya,Unfortunately it...]]> http://forum.codejock.com/forum_posts.asp?TID=24520&PID=79061&title=memory-leak-on-creating-threads#79061 Author: agontarenko
Subject: 24520
Posted: 14 November 2024 at 2:45am

Hello Shinya,

Unfortunately it is not clear what exactly is going wrong. Can you please provide more detailed information.
If it cannot be re-produced in any of our sample applications provided
I would appreciate you sending a sample application so that we could debug it.

Regards,
Artem Gontarenko]]> Thu, 14 Nov 2024 02:45:47 +0000 http://forum.codejock.com/forum_posts.asp?TID=24520&PID=79061&title=memory-leak-on-creating-threads#79061 <![CDATA[Memory Leak on creating threads : CJ:v22.0.0VisualStudio: 2022 (17.11.5)Windows:...]]> http://forum.codejock.com/forum_posts.asp?TID=24520&PID=79055&title=memory-leak-on-creating-threads#79055 Author: Kudo Shinya
Subject: 24520
Posted: 11 November 2024 at 2:11am

CJ: v22.0.0
VisualStudio: 2022 (17.11.5)
Windows: 11

I am creating numerous worker threads using _beginthreadex and terminating them with _endthreadex(0) and CloseHandle().

When taking a memory snapshot in Visual Studio, a memory leak of 480 bytes per thread occurs at 
MyApp.exe!_AFX_THREAD_STATE.

The call stack is as follows, confirming that the memory was allocated by the Toolkit during thread creation: 
kernel32.dll!0x7ff96021257d() 
MyApp.exe!CXTPSkinManagerDetoursApiHook::ThreadProcHook() - Line 591 
MyApp.exe!AfxGetModuleState() - Line 314 
MyApp.exe!CThreadLocal<_AFX_THREAD_STATE>CreateObject() - Line 200 
MyApp.exe!CThreadLocalObjectGetData() - Line 453 
MyApp.exe!CThreadLocal<_AFX_THREAD_STATE>::GetData() - Line 179 
MyApp.exe!CThreadLocal<_AFX_THREAD_STATE>::operator _AFX_THREAD_STATE *() - Line 191

It seems that using AfxBeginThread instead of _beginthreadex can avoid this issue

My application creates and deletes a very large number of threads, so I cannot overlook this small memory leak. 
Additionally, the libraries my application depends on also seem to create threads, making it impossible to replace all thread creation with AfxBeginThread.

Is there any workaround for this issue?

Regars,
Shinya
]]> Mon, 11 Nov 2024 02:11:38 +0000 http://forum.codejock.com/forum_posts.asp?TID=24520&PID=79055&title=memory-leak-on-creating-threads#79055