InfoMagic Internet Tools 1995 April/Internet Tools.iso/dos_win/winsock/userlist/94-02.Z/94-02

Internet Message Format | 1994-02-27 | 6.3 KB

From [e-mail] Tue Feb  8 08:55:22 1994
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Date: Tue, 8 Feb 94 16:55:22 PST
From: [e-mail] (Dennis Young)
Message-Id: <[e-mail]>
To: [e-mail]
Subject: is blocking select a bad idea?



  I am porting some Unix code to the MS Windows
  platform.  I have a few questions on what is
  the best way to incorporate the WinSock without
  making major modifications to the Unix IPC code.

  My main concern is on how to replace the BSD select.
  The simplest way is to replace it with WinSock's
  blocking select.  This select internally uses PeekMessage
  (according to the DefaultBlockingHook in section 4.3.13).
  However, the winsock document strongly discourages
  the use of blocking call.  Does this concern apply to the
  blocking select?  I would not think so because the
  PeekMessage call yields control to other programs
  when message is available, right?

  Another approach is to use the WSAsyncSelect(), but
  this would entail too much modifications to the code.

  Any suggestion is greatly appreciated.

  Please respond to "[e-mail]" direct or cc:,
  since I don't know whether my sign-up request to
  winsock-request is working yet.

  Thank you very much.

    dennis
From [e-mail] Tue Feb 15 09:36:31 1994
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From: [e-mail] (Steve Lieblich)
Message-Id: <[e-mail]>
Date:     Tue, 15 Feb 1994 14:36:31 -0500
X-Mailer: Z-Mail (2.1.3 10feb93)
To: [e-mail]
Subject: winsock questions

- How does one subscribe to this mail group?

- The most recent files found in /pub/micro/pc-stuff/ms-windows/...
    ../winsock/winsock-users-archive and winsock-hackers-archive
  are read protected and thus inaccessible for anonymous ftp.  Is
  this by design, and if so, is there an alternate site for these?
  If not, who should correct the permissions on these files?

- I am currently developing a winsock application using Novell's
  Lan Workplace stack.  I have designed the system to use the
  WSAAsyncSelect, and find under certain circumstances that my
  program does NOT get posted an FD_READ message when in fact the
  programs to which it connects are sending it data.  Has anyone
  had similar problems with this?

Thanks.

--steve lieblich
  [e-mail]

From [e-mail] Thu Feb 17 14:51:07 1994
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Subject: Wint NT socket crash
To: [e-mail] (Windows Winsock )
Date: Thu, 17 Feb 1994 13:51:07 +0100 (MET)
From: Martin Rysanek <[e-mail]>
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HI,
I have a problem with my Win NT AS. I'm about to write
a program which will send some stuffs to other machine using sockets.
But i have a still problem with closing of sockets.

If I close connection by closesocket(s), everything is OK.
If second computer close connection and i receive message
(lParam == 20, ....) and then I
WSAAsyncSelect(s, hWnd, 0, 0);
shutdown(s,2);
closesocket(s);
it means complete crash of WIN16 subsystem in WIN NT AS.

Then I cannot make logoff neither shutdown. It is neccessary
to wait about 6 minut to recover Win NT AS and to make shutdown.
I cannot continue in my work without complete restart of Win NT AS.

I wrote my program with BC C++ 3.1 (Trumpet Beta release #5)
and I have no problem in the Windows 3.1. When I relink
this program with Win NT AS winsock.lib and put it in
the Win NT AS it means crash of NT.

Any idea?

Martin Rysanek

----------------------------------------------------
Martin Rysanek             Technical University Brno
Brno                       [e-mail]
Czech Republic             [e-mail]
From [e-mail] Mon Feb 28 05:35:20 1994
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From: [e-mail] (Jim Greuel X2493)
Message-Id: <[e-mail]>
Date: Mon, 28 Feb 1994 12:35:20 -0700
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To: [e-mail]
Subject: Local communications optimized?

Are there any winsock implementations which optimize local
communications (i.e., communications in which the "remote"
socket is actually on the local node) by using some local IPC
mechanism rather than sending the data down the networking
stack, ala Unix domain sockets?

Thanks in advance,
Jim Greuel



--
Jim Greuel
Network and System Management Division        Hewlett-Packard
Email: [e-mail]        3404 E Harmony Rd.
Telephone: [phone]             Ft. Collins, CO  80525
Fax: [phone]