Posted by jpluimers on 2019/07/30
A race condition can be this small:
if Assigned(Setting.OnChanged) then Setting.OnChanged(Setting);
If in between these lines, the value of Setting.OnChanged becomes nil, then you have an access violation.
It is a very slim, but real chance.
–jeroen
Posted in Delphi, Development, Multi-Threading / Concurrency, Software Development | 4 Comments »
Posted by jpluimers on 2019/07/30
Cool tip by mjolinor to execute the scripts 1.ps1, 2.ps1 and 3.ps1 from a master.ps1 script in the same directory:
&"$PSScriptroot\1.ps1"
&"$PSScriptroot\2.ps1"
&"$PSScriptroot\3.ps1"
Source: [WayBack] scripting – Run Multiple Powershell Scripts Sequentially – on a Folder – Combine Scripts into a Master Script – Stack Overflow.
It uses $PSScriptroot which got introduced in PowerShell 2 in modules and extended in PowerShell 3 to be available in all scripts. More information in [WayBack] about_Automatic_Variables | Microsoft Docs
–jeroen
Posted in CommandLine, Development, PowerShell, PowerShell, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2019/07/30
Old, but I keep bumping in old Python code that needs conversion to work in Python 3.x: [WayBack] What’s New In Python 3.0 — Python 3.6.3 documentation.
Via: [WayBack] Version 3: History of Python – Wikipedia
–jeroen
Posted in Development, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2019/07/29
For my link archive: [Archive.is] My website is marked as unsafe. How can I change this? | Facebook Help Community
Posted in Facebook, Power User, SocialMedia | Leave a Comment »
Posted by jpluimers on 2019/07/29
Since “esxi write entry to syslog” didn’t return results on how to add new syslog entries, only how to configure syslog.
It was much easier than I hoped for:
logger TEST
With a default configuration this then ends up in /var/log/syslog.log:
grep TEST /var/log/syslog.log
2019-07-29T10:48:31Z root: TEST
Now I know the command, I found
–jeroen
Posted in Power User, Virtualization, VMware, VMware ESXi | Leave a Comment »
Posted by jpluimers on 2019/07/29
TL;DR: because most of it is in /var/log/system.log which is configured in /etc/asl.conf, but the documentation example about syslog.conf never got updated.
The example in syslog.conf is wrong at WayBack: Mac OS X Manual Page For syslog.conf(5) and man syslog.conf:
EXAMPLES
A configuration file might appear as follows:
...
# Log anything (except mail) of level info or higher.
# Don't log private authentication messages!
*.info;mail.none;authpriv.none /var/log/messages
...
FILES
/etc/syslog.conf The syslogd(8) configuration file.
It still is when writing this [WayBack]syslog.conf(5) Mac OS X Manual Page, so you have to look at /etc/syslog.conf on a live system:
# Note that flat file logs are now configured in /etc/asl.conf install.* @127.0.0.1:32376
which means the actual configuration is in /etc/asl.conf:
# Rules for /var/log/system.log > system.log mode=0640 format=bsd rotate=seq compress file_max=5M all_max=50M ? [= Sender kernel] file system.log ? [<= Level notice] file system.log ? [= Facility auth] [<= Level info] file system.log ? [= Facility authpriv] [<= Level info] file system.log
Documentation at [WayBack] asl.conf(5) Mac OS X Manual Page indicates this:
NAME
asl.conf -- configuration file for syslogd(8) and aslmanager(8)
DESCRIPTION
The syslogd(8) server reads the /etc/asl.conf file at startup, and re-reads the file when it receives a HUP signal. The aslmanager(8) daemon reads the file when it starts. See the
ASLMANAGER PARAMETER SETTINGS section for details on aslmanager-specific parameters.
Based on [WayBack] logging – Where is “/var/log/messages” on mac-osx? – Server Fault:
Q:
When you read the man pages on Mac OS X, there are references to
/var/log/messages, but if you look for the file, it doesn’t exist:
$ ls -l /var/log/messages
ls: /var/log/messages: No such file or directoryA:
2009 era: If you look at the actual
/etc/syslog.confinstead of the man page, you see*.notice;authpriv,remoteauth,ftp,install.none;kern.debug;mail.crit /var/log/system.log
–jeroen
Posted in Apple, Mac OS X / OS X / MacOS, Mac OS X 10.4 Tiger, Mac OS X 10.5 Leopard, Mac OS X 10.6 Snow Leopard, Mac OS X 10.7 Lion, macOS 10.12 Sierra, OS X 10.10 Yosemite, OS X 10.11 El Capitan, OS X 10.8 Mountain Lion, OS X 10.9 Mavericks, Power User | Leave a Comment »
Posted by jpluimers on 2019/07/26
Experienced first hand myself, all my Harman Kardon amplifier equipment (including subwoofer) have shown power supply issues after about 2 years of use.
Signs are devices not powering up any more, giving only a limited amount of power (for instance a subwoofer only blinking the power led), or intermittent shutdown failure (more often when it is warmer than 22 degrees Celsius).
There are companies making a living of just these power repairs (for instance Audiocare.nl who git all my defective equipment to work again for about EUR 100 per device: [WayBack] Harman Kardon – AudioCare.nl).
This is how you remove the power supplies:
The biggest issues are failing capacitors, and glue becoming conductive.
Related blog posts:
Some videos below the fold.
–jeroen
Posted in BDS277, BDS580, Hardware, Harman Kardon, Home Audio/Video, Power User | Leave a Comment »
Posted by jpluimers on 2019/07/26
Utility for converting curl commands to code
For my link archive: [WayBack] Convert cURL command syntax to Python requests, Node.js code
–jeroen
Posted in *nix, *nix-tools, cURL, Development, JavaScript/ECMAScript, Node.js, Power User, Python, Scripting, Software Development | Leave a Comment »
Posted by jpluimers on 2019/07/26
–jeroen
via: [WayBack] Interesting: Anypaste – Share And Upload Files To Compatible Hosting Sites Automatically… – DoorToDoorGeek “Stephen McLaughlin” – Google+
Posted in *nix, *nix-tools, bash, cURL, Power User | Leave a Comment »
Posted by jpluimers on 2019/07/25
Need to check on this compiler error that you can solve by moving the generic class TExceptionThread<T> from the implementation section of a unit to the interface section.
[dcc32 Error] Test.ExceptionLogging.pas(246): E2506 Method of parameterized type declared in interface section must not use local symbol 'TExceptionThread`1'
My gut feeling is that that this either has to do with RTTI generation, or is a limitation of the compiler.
I need to trim that one done since it does not match any of these:
program which does not even distinguish interface and implementation.–jeroen
Posted in Conference Topics, Conferences, Delphi, Development, Event, Software Development | Leave a Comment »
The Wiert Corner - irregular stream of stuff 