Monthly Archives: June 2020

Gemstone/PUM – What about large number of users ?

Posted on June 29, 2020 by schrievkrom

Our CATI application is targeted for lots of users – but due to the fact, that our browser based application does lots of API calls each second, considering the fact, that we need one WebSocket for each user it seems … Continue reading →

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SmalltalkInspect Podcast – some older recordings

Posted on June 29, 2020 by schrievkrom

Somewhere in the past I stopped producing podcasts with Sebastian and Joachim and somehow I lost several of these recorded podcasts. Now I had a look at some backups and I found at least dome of these episodes. You may … Continue reading →

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Redirect all from HTTP to HTTPS under apache

Posted on June 24, 2020 by schrievkrom

Just for my personal info. If I want to redirect all traffic from a http-virtual host to a https virtual host, just enter the following to your http-virtual host: # Redirect everything to feldtmann.ddns.net RewriteEngine on RewriteCond %{HTTPS} !=on RewriteCond … Continue reading →

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PUM API Programming and curl

Posted on June 23, 2020 by schrievkrom

As you perhaps might know, I do API development using Gemstone/S database and Sencha ExtJS Javascript for the UI. Most of the tests are done in Firefox and here I found a nice little feature. If you are working with … Continue reading →

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Gemstone/S – How to create an empty file very fast

Posted on June 23, 2020 by schrievkrom

I had to solve this problem while implementing a Multi-Part Upload … each chunk delivers its position in the target file and the total size of the file. So while the first chunk has been received, the Multi-Part Upload API-Call … Continue reading →

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PUM – Define a “free” API Call

Posted on June 23, 2020 by schrievkrom

Sometimes you have something to do and you can not define a classical model in the modelling tool. Actually you just want to make a HTTP request under the hood of an API call and then handle it in Gemstone/S … Continue reading →

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MSKZIO – FPU – 2nd revision, still a problem – but solution is found

Posted on June 22, 2020 by schrievkrom

So, the 2nd revision came from China and I tested it and it still did not work – that was strange, but actually I’ve found the error. I missed one signal to invert. You can see on the picture, that … Continue reading →

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PUM – Requester Location for Session Information

Posted on June 19, 2020 by schrievkrom

If you create the REST structure within PUM for a Gemstone/S project, it creates a session class. Among the stored values within this session object, there is also the location attribute – a string containing the information where the requests … Continue reading →

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PUM 9.80 – Improvement in Session Handling

Posted on June 19, 2020 by schrievkrom

The runtime module is responsible to check if a session has timed out. In general this is done by some attributes in the session object: lastActivityTS (timestamp), expirationTS (timestamp), defaultTimeoutMS (milliseconds). In each transaction the system is doing something like: … Continue reading →

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MSKZIO – FPU partially working

Posted on June 5, 2020 by schrievkrom

I mentioned this board in https://schrievkrom.wordpress.com/2020/05/28/mskzio-fpu-for-z80-z180-playground-for-pfingsten/ and the board is partially working and I have no idea, what is going wrong. I can read the content of the FPU data registers, I can move constants from the ROM to registers, … Continue reading →

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