Microsoft KB Archive/817758

= An Unsuccessful Call to the Connect Function on a Non-Blocking Socket Leaks a Thread in the Device.exe Process =

Article ID: 817758

Article Last Modified on 5/27/2005

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APPLIES TO


 * Microsoft Windows CE Platform Builder 4.1

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SYMPTOMS
An application that uses the Windows Sockets API stops responding when a call to the CloseSocket function does not return. System processes that seem to be unrelated may stop working.



CAUSE
When the application calls CloseSocket on a non-blocking socket, Device.exe creates a thread to handle closing the socket and to allow the application thread to continue execution. The new thread does not complete the close operation. As a result, a system thread object is leaked. When the process Device.exe reaches the per-process limit on thread objects, the call to CloseSocket blocks until one of the leaked threads exits. Because the leaked thread never exits, the problem occurs.



Hotfix Information
A supported software update is now available from Microsoft as Windows CE 4.1 Core OS QFE 030430_Q817758. To resolve this problem immediately, click the following article number for information about obtaining Windows CE Platform Builder and core operating system software updates:

837392 How to locate core operating system fixes for Microsoft Windows CE Platform Builder products

This hotfix does not replace any other hotfixes.

The English version of this hotfix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time                      Size    File name ---

Path: 030430_q817758 30-Apr-2003 20:48                      7,741  Wince .net 4.1_qfe_readme_q817758.htm

Path: 030430_q817758\Public\Common\Oak\Lib\Armv4\Debug 17-Apr-2003 02:35                  1,099,680  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Armv4\Retail 17-Apr-2003 02:34                    698,304  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Armv4i\Debug 17-Apr-2003 02:34                  1,100,728  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Armv4i\Retail 17-Apr-2003 02:33                    699,182  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Armv4t\Debug 17-Apr-2003 02:33                  1,053,684  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Armv4t\Retail 17-Apr-2003 02:32                    695,128  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mips16\Debug 17-Apr-2003 02:36                    990,670  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mips16\Retail 17-Apr-2003 02:36                    633,964  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsii\Debug 17-Apr-2003 02:36                  1,115,142  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsii\Retail 17-Apr-2003 02:35                    710,848  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsii_fp\Debug 17-Apr-2003 02:37                  1,115,278  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsii_fp\Retail 17-Apr-2003 02:37                    711,076  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsiv\Debug 17-Apr-2003 02:41                  1,124,994  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsiv\Retail 17-Apr-2003 02:40                    715,784  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsiv_fp\Debug 17-Apr-2003 02:39                  1,125,128  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Mipsiv_fp\Retail 17-Apr-2003 02:39                    716,016  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Sh3\Debug 17-Apr-2003 02:38                    999,482  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Sh3\Retail 17-Apr-2003 02:38                    658,948  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Sh4\Debug 17-Apr-2003 02:40                    998,878  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\Sh4\Retail 17-Apr-2003 02:39                    657,728  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\X86\Debug 17-Apr-2003 02:32                    983,518  Afdlib.lib

Path: 030430_q817758\Public\Common\Oak\Lib\X86\Retail 17-Apr-2003 02:32                    619,648  Afdlib.lib

Path: 030430_q817758\Signed 30-Apr-2003 22:05  4.1.3.430       1,100,392  030430_armv4i_wce41-q817758.exe 30-Apr-2003 22:05  4.1.3.430       1,100,392  030430_armv4t_wce41-q817758.exe 30-Apr-2003 22:05  4.1.3.430       1,100,392  030430_armv4_wce41-q817758.exe 30-Apr-2003 22:04  4.1.3.430       1,047,144  030430_mips16_wce41-q817758.exe 30-Apr-2003 22:06  4.1.3.430       1,133,160  030430_mipsii_fp_wce41-q817758.exe 30-Apr-2003 22:06  4.1.3.430       1,133,160  030430_mipsii_wce41-q817758.exe 30-Apr-2003 22:06  4.1.3.430       1,141,352  030430_mipsiv_fp_wce41-q817758.exe 30-Apr-2003 22:06  4.1.3.430       1,141,352  030430_mipsiv_wce41-q817758.exe 30-Apr-2003 22:05  4.1.3.430       1,063,528  030430_sh3_wce41-q817758.exe 30-Apr-2003 22:05  4.1.3.430       1,063,528  030430_sh4_wce41-q817758.exe 30-Apr-2003 22:03  4.1.3.430       1,010,280  030430_x86_wce41-q817758.exe



WORKAROUND
To work around this problem, either do not use non-blocking sockets, or use a very small time-out value, such as 1, in the call to CloseSocket.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section of this article.

Additional query words:

Keywords: kbbug kbfix kbqfe KB817758

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