[Bug 21420] New: VB6 winsock.close from server will get port stuck for about a minute
wine-bugs at winehq.org
wine-bugs at winehq.org
Tue Jan 19 14:34:14 CST 2010
http://bugs.winehq.org/show_bug.cgi?id=21420
Summary: VB6 winsock.close from server will get port stuck for
about a minute
Product: Wine
Version: 1.1.35
Platform: x86
OS/Version: Linux
Status: UNCONFIRMED
Severity: minor
Priority: P2
Component: winsock
AssignedTo: wine-bugs at winehq.org
ReportedBy: razorwings18 at hotmail.com
Created an attachment (id=25798)
--> (http://bugs.winehq.org/attachment.cgi?id=25798)
Client and Server sample apps including executables and source
SETUP:
- COMPUTER "A": Client application using WINSOCK via TCP/IP to connect to
server
- COMPUTER "B": Server application using WINSOCK to listen to incomming
connections from clients on a particular port
- Both applications are written in Visual Basic 6
When the client app connects using Winsock via TCP/IP to the Winsock server,
and the server side executes the CLOSE method, the client gets properly
disconnected, but the server's port on which the connection was performed will
stay "stuck" for about 1 minute, not being able to listen for new connections
on that port.
Invoking Winsock's CLOSE method from the client properly disconnects both
parties.
This problem is not present on Windows, with closing from either side properly
and immediately closing the connection and freeing the port.
See attached sample applications. They will connect on port 10013. To reproduce
errors in sample apps:
- Run CLIENT.EXE in client computer
- Run SERVERTEST.EXE in server computer
(can both be run in the same box)
- In CLIENT, enter server IP in the textbox and click CONNECT. You should see
"Incoming connection from XXX.XXX.XXX.XXX" in the server if properly connected.
- Click CLOSE CONNECTION FROM SERVER.
- In WINE, you will see "Error in command:..." and "Error executing TIMEOUT..."
on the server's log box while the port is "stuck". The server will try to
disconnect every 15 seconds until finally the port is freed and it will return
to Listening status. On Windows, it will return immediately to Listening with
no errors.
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