Archive for the ‘Development’ Category
Posted by jpluimers on 2022/06/07
A while ago, I got reminded of a few occurrences of Delphi apps hanging after a little less than 2 months of being active.
It does not happen that often, as usually Patch Tuesday requires a reboot, but sometimes it doesn’t, or ops forgot to patch the affected machine.
The common thing for these hanging apps was that they all used the System.Threading unit (introduced in Delphi XE7). That unit relied on [Wayback] TThread.GetTickcount (added in Delphi XE3 in the System.Classes unit) which uses a 32-bit unsigned [Archive.is] cardinal value as it relied on the Windows API [Wayback] GetTickCount function which in turn has this remark:
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Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »
Posted by jpluimers on 2022/06/02
Before digging into Wake-on-LAN on Windows machines, I’ll interlude with basically the canonical wakonlan available on many non Windows machines
On Linux and BSD machines, there is the Perl script wakeonlan (steadily at version 0.41) at [Wayback/Archive.is] jpoliv/wakeonlan: Perl script for waking up computers via Wake-On-LAN magic packets (script: [Wayback/Archive.is] wakeonlan/wakeonlan at master Β· jpoliv/wakeonlan) with this help:
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Posted in *nix, *nix-tools, Development, Perl, Power User, Scripting, Software Development, Windows | Leave a Comment »
Posted by jpluimers on 2022/06/01
Get the new [Wayback/Archive] Delphi Thread Safety Patterns eBook at a discount while it is hot:
Use Coupon Code:Β DTSPATT10Β at checkout to get aΒ $10 discount.
This promotional offer is valid throughΒ June 14.
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Posted in Delphi, Development, Encoding, ISO-8859, ISO8859, Mojibake, Multi-Threading / Concurrency, Software Development, UTF-8, Windows-1252 | Leave a Comment »
Posted by jpluimers on 2022/05/27
Posted in Chrome, Configuration Management, Development, DevOps, Firefox, History, IaC - Infrastructure as Code, Infocom and Z-machine, Infrastructure, KVM Kernel-based Virtual Machine, LSI/3ware, Open Source, PDP-11, Power User, PowerShell, Puppet, Python, Qemu, Rust, Safari, Scripting, Software Development, UCSD Pascal, Vagrant, Veewee, Virtualization, Web Browsers, Xen | Leave a Comment »
Posted by jpluimers on 2022/05/25
Since I will be bitten by this someday, here the september 2021 observation that [Wayback] By default, scp(1) now uses SFTP protocol.
The original scp/rcp protocol remains available via the -O flag.
It refers to the august 2021 announcement in the [Wayback] OpenSSH: Release Notes – OpenSSH 8.7/8.7p1 (2021-08-20) that scp supported SFTP (like the sftp tool) and that it would become default soon:
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Posted in *nix, *nix-tools, Communications Development, Development, Internet protocol suite, OpenSSH, Power User, rsync, scp, SFTP, SSH, TCP | Leave a Comment »
Posted by jpluimers on 2022/05/23
Printing on MacOS can be less Plug&Play than one hopes for.
For default printer drivers on MacOS for the same printer:
- Postscript allows colour and monochrome (black & white / grayscale)
- PCL only allows monochrome (black & white / grayscale)
One solution for my OKI MC363 is to use the HP PCL driver and fake it as a HP Colour LaserJet 9500 (which provides a similar amount of memory, and colour duplex A4 printing):
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Posted in Apple, Development, EPS/PostScript, Hardware, Mac OS X / OS X / MacOS, MC342 printer/scanner, OKI C332, OKI MC363/MC363DNW, OKI Printers, Power User, Printers | Leave a Comment »
Posted by jpluimers on 2022/05/18
Subtitle:
GetFullPathName thread-unsafety because of SetCurrentDirectory isn’t, so derived functions (like Delphi GetDir/ChDir/TPath.GetFullPath, or .NET System.IO.Path.GetFullPath) are not thread-safe either (via The Old New Thing)
A while ago I got a big reminder because ofΒ [Wayback] What are these dire multithreading consequences that the GetFullPathName documentation is trying to warn me about? | The Old New Thing:
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Posted in Delphi, Development, Pascal, Software Development, Turbo Pascal, Windows Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 