Tag Archive
Clone Wars
In this post I wish to discuss a common coding error that can result in a module running out of or at least seriously depleting the available number of stcp device clones for use in creating TCP sockets.
The Importance of -1
Don’t worry, despite the title I haven’t reverted to math nerd mode. The topic is not number theory but socket programming and a coding mistake that I have seen way too often. The code fragment in figure 1 demonstrates the mistake. There is a main while loop that loops forever calling select and waiting for [...]
Technical Webinar on Porting Open-Source code to OpenVOS
Did you miss the webinar? Well, we have the video right here for you! Watch an overview of the steps that you can follow to port open-source code to the Stratus OpenVOS operating system. I review the OpenVOS POSIX environment, explain how to find and download open-source packages, discusses the process for building and installing [...]
Sharing the Load – Multiple Processes Listening on the Same Port Number
Under STCP when you have multiple processes listening on the same port number only the first process that bound to the port number is notified when a connection is requested. One common way to slip around this restriction is to close the listening socket when a connection is completed and then create a new socket [...]
What’s in a hostname?
Ever wonder how STCP knows what its name is? In the >system>stcp directory is a file called host. The file contains one line which is the name of the module. You can edit or display the file directly but I recommend that you use the hostname command. Without arguments it will display the contents of [...]
