Posted by jpluimers on 2018/08/21
When you run on Windows: [WayBack] Full Duplex Asynchronous Read/Write with Named Pipes – CodeProject
via:
–jeroen
Posted in .NET, C#, Development, Software Development, WinForms | Leave a Comment »
Posted by jpluimers on 2018/08/16
Cool feature borrowed from Notepad, which can read files locked by other references (for instance a process having the handle open): [WayBack] c# – Notepad beats them all? – Stack Overflow.
The example from the answer is in .NET, but can be used in a native environment as well (Notepad is a native application).
Notepad reads files by first mapping them into memory, rather than using the “usual” file reading mechanisms presumably used by the other editors you tried. This method allows reading of files even if they have an exclusive range-based locks.
You can achieve the same in C# with something along the lines of:
using (var f = new FileStream(processIdPath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite)) using (var m = MemoryMappedFile.CreateFromFile(f, null, 0, MemoryMappedFileAccess.Read, null, HandleInheritability.None, true)) using (var s = m.CreateViewStream(0, 0, MemoryMappedFileAccess.Read)) using (var r = new StreamReader(s)) { var l = r.ReadToEnd(); Console.WriteLine(l); }
Via: [WayBack] Maintaining Notepad is not a full-time job, but it’s not an empty job either – The Old New Thing
–jeroen
Posted in .NET, Delphi, Development, Software Development, The Old New Thing, Windows Development | Leave a Comment »
Posted by jpluimers on 2018/08/09
[WayBack] Why Skylake CPUs Are Sometimes 50% Slower – How Intel Has Broken Existing Code – Alois Kraus reports that the PAUSE instruction on Intel Skylake architecture takes an order of magnitude longer than on previous architectures.
This impacts spinlock code in .NET 4.x and .NET Core 2, and likely impacts other spinlock code as well. The .NET core fix gets back-ported to .NET 4.x.
Since Delphi XE, the Delphi RTL code has borrowed ideas from .NET implementing this kind of code, so I filed [WayBack] QualityCentral: 144063 PAUSE instruction on Intel Skylake takes order of magnitude longer: important for SpinWait/SpinLock code (because Google can index it).
It is no coincidence that a Senior Scaleability Engineer at Booking.com mentioned it on his G+ stream ([WayBack] The “Pause” instruction changed timing dramatically in Skylake. Spinlock implementation based on pause will need adjustments. – Kristian Köhntopp – Google+) as changes like this can heavily impact server systems.
–jeroen
via: [WayBack] The “Pause” instruction changed timing dramatically in Skylake. Spinlock implementation based on pause will need adjustments.I hope a fix for this will be back-ported for many Delphi versions. – Jeroen Wiert Pluimers – Google+
Posted in .NET, .NET 4.0, Delphi, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2018/07/18
I was looking for a HTML pretty printer (…) but in Visual Studio code, that is called code formatting, which supports many languages out of the box (including HTML) without requiring extensions like Atom.io (see below).
The shortcuts are at [WayBack] How do you format code in Visual Studio Code (VSCode) – Stack Overflow.
For Mac OS X/OS X/MacOS they are (the second one only appears when you have a code selection):
- document:
Shift–Option–F- selection:
Command–KCommand–F
Posted in Development, Software Development, Visual Studio and tools, vscode Visual Studio Code | Leave a Comment »
Posted by jpluimers on 2018/07/10
If you’re new to C#, below is a good series of articles to get started.
Even if you’re not so new, there are quite some interesting bits to learn from them:
–jeroen
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Posted by jpluimers on 2018/07/04
Since I forget where they hid the [WayBack] Visual Studio – Add File As Link feature, two images from the linked post:
Add button with two more options: Add; Add as Link (note Show Previous Versions is a feature of non-Home version of Windows Vista and up).
A step by step instruction is at [WayBack] c# – Add File as a Link on Visual Studio – Debug vs Publish – Stack Overflow.
–jeroen
Posted in .NET, Development, Software Development, Visual Studio and tools | Leave a Comment »
Posted by jpluimers on 2018/06/29
I forgot to schedule the post below. It is still relevant if you create a machine with lots of Delphi versions on it.
Posted in .NET, .NET 2.0, .NET 3.0, .NET 3.5, Database Development, Delphi, Delphi 2007, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Development, Firebird, InterBase, Power User, Software Development, Windows, Windows 8 | 2 Comments »
Posted by jpluimers on 2018/06/21
Very often, I see people ask for how to embed multi-line strings in a Delphi source file.
The short answer is: you can’t.
The long answer is: you can’t and if you want you have to hack your way around.
The answer should be: just like any of these languages that do support multiline strings:
Many languages support this through a feature called HEREDOC.
Now in Delphi and other languages like Java are building ugly workarounds like for instance this one: [WayBack] RAD Studio Tip: Using resource scripts to organize project dependencies. – Chapman World.
–jeroen
Posted in .NET, C#, Delphi, Development, JavaScript/ECMAScript, Python, Ruby, Scripting, Software Development | 17 Comments »
Posted by jpluimers on 2018/06/13
A cool preview of things to come in C# 8: [WayBack] Build 2018: The Future of C#
Via: [WayBack] C# 8 changes, exemplified #csharp – Lars Fosdal – Google+
–jeroen
Posted in .NET, C#, Development, Software Development | Leave a Comment »
Posted by jpluimers on 2018/06/01
Interesting [Archive.is] Thread by @shanselman: “Sure. Not too complex. Thread -> .NET is a family. * Core runs on containers, many Linuxes, Windows and Mac. OSS, moves fast. * Framework […]”
It answers [Archive.is] Thread by @domenic: “Having been out of the scene for over 5 years now, I’m extraordinarily confused by what’s going on over in .NET land. Not only the “what”, b […]”
Dominic was confused by .NET Core going to support Windows desktop UI apps as platform specific packages to a a cross platform foundation as announced in [WayBack] .NET Core 3 and Support for Windows Desktop Applications | .NET Blog
Via: [WayBack] Miguel de Icaza on Twitter: “Good thread on the evolution of modern .NET by @shanselman… “
–jeroen
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The Wiert Corner - irregular stream of stuff 