Posted by jpluimers on 2015/01/05
A very nice thread around multi-threading in Delphi is evolving at Google Plus: Nick Hodges: Man, the chapter on Multi-threading is going to be seriously hard to write.….
Note: you need to be member of that G+ group to read it, but Nick Hodges allows most people in…
–jeroen
(I also tagged it XE8, as by the time such a book arrives, that Delphi version has most likely come out given the past release frequency <g>)
Posted in Delphi, Delphi XE, Delphi XE2, Delphi XE3, Delphi XE4, Delphi XE5, Delphi XE6, Delphi XE7, Delphi XE8, Development, Software Development | 7 Comments »
Posted by jpluimers on 2015/01/05
Posted in Power User | Leave a Comment »
Posted by jpluimers on 2015/01/03
Thanks Nick Hodges for asking, and Uwe Raabe for answering:
Yep! Delphi 2 had TThread while Delphi 1 did not.
It resulted in an interesting thread including topics like cooperative multi-tasking and named pipes under DOS by using Turbo Pascal.
Boy, I remember the \pipe\ days and releasing a time slice by calling INT $28, $15 and $2F combinations like this:
| asm | |
| int $28 | |
| mov ax, $1000 | |
| int $15 { DESQview/TopView give up time slice } | |
| mov ax, $1680 | |
| int $2F | |
| end; |
Note: you can even use INT $2F with AX=$1680 to check if you are running in a DOS x86 VM and other OS checks.
–jeroen
via: Anyone remember which version of Delphi introduced TThread?.
Posted in Borland Pascal, Delphi, Delphi 1, Delphi 2, Development, Pascal, Software Development, Turbo Pascal | 4 Comments »
Posted by jpluimers on 2015/01/02
Click on the map to view a larger version. Thanks Guardian!
Fun way to display some other relations between various series of atoms:
–jeroen
Posted in LifeHacker, Power User | Leave a Comment »
Posted by jpluimers on 2015/01/01
In Delphi XE7, Embarcadero introduced a new Parallel Computing Library.
Programmers – human as they are – see this as a silver bullet, thinking using such a library will take away all your performance issues without having to know about solving race conditions.
Boy are they wrong. The library helps you, and makes it easier. Easier in the sens of “less hard”.
So here is my friendly warning:
Parallel programming is hard. Live with it.
This apart from another important warning:
Delphi XE7 is the first version where this library is introduced. So expect bugs and more bugs.
This isn’t to say you should not use a library for parallel computing (the OmniThreadLibrary has been around for a reason), just that it is hard to get these right, even for library writers. They often get it right better and faster than rolling your own.
Posted in Delphi, Delphi XE7, Development, Software Development | 5 Comments »
The Wiert Corner - irregular stream of stuff 