09-22-2012
Sounds more like a bug in the application rather than an OS thing. Have you tried checking with the application support team? Does the application log any error about shutting down ports?
I have seen Java applications delay in opening ports. But, shutting down a listening port is different, may be due to some restriction in the application's config, etc. In your situation, I would seek help from the apps team.
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LEARN ABOUT CENTOS
tk_setappname
Tk_SetAppName(3) Tk Library Procedures Tk_SetAppName(3)
__________________________________________________________________________________________________________________________________________________
NAME
Tk_SetAppName - Set the name of an application for 'send' commands
SYNOPSIS
#include <tk.h>
const char *
Tk_SetAppName(tkwin, name)
ARGUMENTS
Tk_Window tkwin (in) Token for window in application. Used only to select a particular application.
const char *name (in) Name under which to register the application.
_________________________________________________________________
DESCRIPTION
Tk_SetAppName associates a name with a given application and records that association on the display containing with the application's main
window. After this procedure has been invoked, other applications on the display will be able to use the send command to invoke operations
in the application. If name is already in use by some other application on the display, then a new name will be generated by appending "
#2" to name; if this name is also in use, the number will be incremented until an unused name is found. The return value from the proce-
dure is a pointer to the name actually used.
If the application already has a name when Tk_SetAppName is called, then the new name replaces the old name.
Tk_SetAppName also adds a send command to the application's interpreter, which can be used to send commands from this application to others
on any of the displays where the application has windows.
The application's name registration persists until the interpreter is deleted or the send command is deleted from interp, at which point
the name is automatically unregistered and the application becomes inaccessible via send. The application can be made accessible again by
calling Tk_SetAppName.
Tk_SetAppName is called automatically by Tk_Init, so applications do not normally need to call it explicitly.
The command tk appname provides Tcl-level access to the functionality of Tk_SetAppName.
KEYWORDS
application, name, register, send command
Tk 4.0 Tk_SetAppName(3)