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Windows Sockets select() Function Adds 500 Millisecond Time-Out
Article ID: 257821 - View products that this article applies to.
This article was previously published under Q257821
The select function adds 500 milliseconds (msec) to the running time when the timeval parameter specifies 500 or more msec. This occurs when a socket is checked for readability or errors.
As a consequence, it is not possible to effectively specify a timeout of between 500 and 1000 msec.
The select function calls an internal socket provider function that does not eliminate the time used during an optimized check for blocking callbacks.
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that this article describes. Apply it only to systems that are experiencing this specific problem.
To resolve this problem, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=supportNote In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
Date Time Version Size File name Platform ------------------------------------------------------------------ 03/22/2000 01:08p 184.108.40.2060 27,648 Msafd.dll Windows 98 03/22/2000 01:31p 220.127.116.110 26,624 Mswsosp.dll Windows 98 03/22/2000 12:44p 18.104.22.1683 27,648 Msafd.dll Windows 98 SE 03/22/2000 12:55p 22.214.171.1243 26,624 Mswsosp.dll Windows 98 SE
Microsoft has confirmed that this is a problem in all versions of Windows 95 and Windows 98.
For additional information about Windows 98 and Windows 98 Second Edition hotfixes, click the article number below to view the article in the Microsoft Knowledge Base:
(http://support.microsoft.com/kb/206071/EN-US/ )General Information About Windows 98 and Windows 98 Second Edition Hotfixes
Article ID: 257821 - Last Review: January 27, 2007 - Revision: 1.6