Re: Memory leak with detached threads

[Giuliano Catrambone <giuliano.catrambone@catrasoftware.it>]

[-- Attachment #1: Type: text/plain, Size: 3001 bytes --]

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:
> 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
> -----------------------------------------------------------------
>
>
>
>
>   


-- 
-----------------------------------------------------------------
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
-----------------------------------------------------------------



[-- Attachment #2: memoryLeak.cpp --]
[-- Type: text/x-c++src, Size: 855 bytes --]


#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;
}