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Re: Memory leak with detached threads
- From: Giuliano Catrambone <giuliano dot catrambone at catrasoftware dot it>
- To: Tim Theisen <ttheisen at tomotherapy dot com>, pthreads-win32 at sources dot redhat dot com
- Date: Mon, 30 Oct 2006 23:49:09 +0100
- Subject: Re: Memory leak with detached threads
- References: <A215103B7880F64D9CB8E88EF3F9455F3816DD@EVS1.tomotherapy.com>
Hi Tim, all,
I tested the C code using the prebuilt-dll-2-7-0-release but I
continue to have the
memory leak.
Could you test the code I attached to verify that the memory leak is
really present
in order to made a fix for it?
Thanks for your help in advance
giu
Tim Theisen wrote:
Did you consider using the latest version?
The current version is 2.7.0 (2005-06-04)
http://sourceware.org/pthreads-win32/
Version 2.6.0 specifically mentions a resource leak with
pthread_detach():
* pthread_detach() now reclaims remaining thread resources if called
after
the target thread has terminated. Previously, this routine did nothing
in
this case.
http://sourceware.org/pthreads-win32/news.html
...Tim
--
Tim Theisen Lead Research Software Engineer
Phone: +1 608 824 2848 TomoTherapy Incorporated
Fax: +1 608 824 2996 1240 Deming Way
Web: http://www.tomotherapy.com Madison, WI 53717-1954
-----Original Message-----
From: pthreads-win32-owner@sourceware.org
[mailto:pthreads-win32-owner@sourceware.org] On Behalf Of Giuliano
Catrambone
Sent: Sunday, October 29, 2006 13:43
To: pthreads-win32@sources.redhat.com
Subject: Memory leak with detached threads
Hi all,
I found a memory leak working with detached threads.
I just made a simple C code to demonstrate where I have the memory
leak.
Running the attached C code I saw about 4KB of memory leak every 20
iteration.
I'm using pthreads-dll-2005-03-08.
Could you tell me if I'm wronging something or if it is a bug?
Thanks in advance
giu
--
-----------------------------------------------------------------
Giuliano Catrambone
Director, Professional Services
Open source projects:
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-----------------------------------------------------------------
--
-----------------------------------------------------------------
Giuliano Catrambone
Director, Professional Services
Open source projects:
http://sourceforge.net/projects/catralibraries/
http://sourceforge.net/projects/openstreaming/
CatraSoftware:
Home page: http://www.catrasoftware.it
Streaming page:
http://www.catrasoftware.it/Streaming/CatraStreamingPlatform.htm
Mobile +39.393.8816655
Fixed: +39.02.90377228
Skype: Catrambone Giuliano
msn: giulianocatrambone@hotmail.com
Jabber: giuliano.catrambone@Jabber.org
Yahoo: giuliano.catrambone
-----------------------------------------------------------------
#include <iostream>
#include <pthread.h>
#include <windows.h>
void *runFunction (void *pvPThread)
{
std:: cout << "Inside the thread" << std:: endl;
Sleep (300);
return (void *) NULL;
}
int main ()
{
pthread_t _pThread;
pthread_attr_t _pThreadAttribute;
for (long lIndex = 0; lIndex < 1000; lIndex++)
{
std:: cout << "Index: " << lIndex << std:: endl;
std:: cout << pthread_attr_init (&_pThreadAttribute) << std:: endl;
std:: cout << pthread_attr_setdetachstate (&_pThreadAttribute, PTHREAD_CREATE_DETACHED)
<< std:: endl;
std:: cout << pthread_create (&_pThread, &_pThreadAttribute, runFunction, NULL) << std:: endl;
// std:: cout << pthread_join (_pThread, &pvStatus) << std:: endl;
std:: cout << pthread_attr_destroy (&_pThreadAttribute) << std:: endl;
Sleep (300);
}
Sleep (1000 * 1000);
return 0;
}