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chkaufmann

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  • Delphi-Version
    Delphi 11 Alexandria

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  1. chkaufmann

    Alternatives for SQL Anywhere

    Yes PostgreSQL is powerfull, so from that point of view, it looks heavy. But there is a Windows installer, quite simple. I think it may even configured for "silent install". Firebird comes in two version, one is with an embedded server. This you can install by just copying some files. And another advantage is, that you have single file databases. The only disadvantage is, that the database file have to be on a local drive with the embedded server. We used Firebird in many projects, however, when a database becomes bigger (several million records), it became a bit tricky with performance when you do many updates / deletes. That's when I started to use PostgreSQL which is more tolerant here. And PostgreSQL supports native JSON and Gis features. Christian
  2. chkaufmann

    Alternatives for SQL Anywhere

    PostgreSQL and UniDac. Christian
  3. chkaufmann

    String Helper for NormalizeString

    Thanks. I think the problem is solved. No errors anymore. Christian
  4. I created the following helper method to normalize Unicode strings with different representations of ä, ö, ü: function TBSStringHelper.Length: Integer; begin Result := TBSStringHelperCaller.Length(Self); end; function TBSStringHelper.NormalizeNFC: String; var bufLen : Integer; buffer : PWideChar; begin Result := Self; bufLen := NormalizeString(NormalizationC, PWideChar(Self), Length, nil, 0); if bufLen > 0 then begin GetMem(buffer, bufLen); try bufLen := NormalizeString(NormalizationC, PWideChar(Self), Length, buffer, bufLen); if bufLen > 0 then begin Result := buffer; SetLength(Result, bufLen); end; finally FreeMem(buffer); end; end; end; But when I use this function many times, I get a memory corruption error and at some point an access violation. What is wrong here? I'm on Delphi 11, Update 1. Christian
  5. chkaufmann

    filenames with unicode chars

    But when I look in WinApi.Windows.pas, then FindFirstFile maps to external symbol FindFirstFile (and not FindFirstFileW) for a parameter TWIN32FindData. It has to be TWIN32FindDataW, then FindFirstFileW is used. I'm still on Delphi 11, Update 1. So maybe this changed with the latest version? Christian
  6. chkaufmann

    Blogged : Code Signing with Inno Setup and Signotaur

    Can I integrate Finalbuilder with this service? https://techcommunity.microsoft.com/blog/microsoft-security-blog/trusted-signing-is-in-public-preview/4103457 $ 10.- per month looks fair to me. Christian
  7. Since some years there is the unit IOUtils.pas. There are many duplicated functions: ExtractFileExt() - TPath.GetExtension() ExtractFileName() - TPath.GetFileName() FileAge() - TFile.GetLastWriteTime() My code uses SysUtils.pas in most places, and I'm not sure if I should change this to use the functions from the new unit IOUtils.pas because the others will be deprecated at some point? And is there a comparisation table anywhere? It looks like not all functions work exactly the same way especially when it comes to throw exceptions. Christian
  8. chkaufmann

    Delphi 12.2 Patch 1

    I can't find this one anymore in the portal. Does it mean, it was fixed?
  9. chkaufmann

    Use TIdHTTPServer.Contexts for monitoring

    You mean get that exception? Maybe it's only when run the code with break points in the debugger. Anyway, it works fine now and get the details for my monitor functionality.
  10. chkaufmann

    Use TIdHTTPServer.Contexts for monitoring

    Thanks for the details. It seems, there are two connections when I send a GET request with postman. But in the first one I end method TIdIOHandler.RaiseConnClosedGracefully. When I test with the Chrome browser, there is only one context / connection. Christian
  11. chkaufmann

    Use TIdHTTPServer.Contexts for monitoring

    I try to use my own subclass for TIdServerContext to monitor the requests to my server. Now I sent a simple GET request with Postman to my server and noticed, that two context objects were created, but the OnCommandGet event is only called once. What is the reason for that? Then I plan to iterate all current requests like this: tmpList := IdHTTPServer1.Contexts.LockList; for i := 0 to tmpList.Count -1 do begin tmp := TMyContext(tmpList[i]); // read some info from tmp end; IdHTTPServer1.Contexts.UnLockList; Can I be sure, that all items will be alive. Or is it possible, that one of the context items was freed before I could read info from it? Christian
  12. I have a question regarding memory usage for strings. When I load a big number of persons, there are many hundred with the same name. Is this handled automatically so that there will be only one copy of the string for a certain name or should I write my own code for this? Or does it depend how the strings are loaded and to what kind of variable these are assigned? I didn't find a good source to read about this topic. Any hints for that? Thanks Christian
  13. chkaufmann

    What are the performance profilers for Delphi 12?

    Just a question regarding Nexus Quality Suite: I looked at it some years ago and I noticed, if you have a big project, the performance for Line Timer / Method Timer was not very good when configuring which methods to trace and which not. Was there an improvement in this regard? And by the way: AQTime was a perfect profiler, I really miss it. Then it was aquired by SmartBear and since then it's terrible because the only improvement of the product they made was adding more and more annoying registration code. Christian
  14. chkaufmann

    SFTP Support

    Unfortunately Indy TIdFTP Client does not support SFTP. The discussions about this I found are already some years old. Is there a chance this will be added? And if not, what is a good alternative? I need something that can be fully integrated in my application so that it works for users who can just enter a servername, username and password. Christian
  15. chkaufmann

    Avoid parameter evaluation

    Clipper and I think Smalltalk had anonymous methods as well. And this at the time when Java was not even born. Christian
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