October 2025
Intermediate to advanced
530 pages
13h 14m
German
Content preview from Linux-Treiber entwickeln
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6.5 Kritische Abschnitte sichern
Der Schutz kritischer Abschnitte innerhalb des Betriebssystemkerns gehört zu den diffizilsten Aspekten der Kernelprogrammierung. Damit ein solcher Schutz bei zugleich effizientem Code gewährleistet werden kann, gibt Linux einen Satz ganz verschiedener Funktionen an die Hand.
Kritische Abschnitte entstehen immer dann, wenn Parallelität stattfindet. Konkurrieren beispielsweise zwei Rechenprozesse um ein Betriebsmittel, liegt ein kritischer Abschnitt vor. Ebenso, wenn zwei Prozesse auf die gleiche Datenstruktur zugreifen. Oder auch, wenn sich zwei Prozesse synchronisieren.
Bleiben kritische Abschnitte unbeachtet bzw. ungeschützt, kommt es zur sogenannten Race Condition. Bei einer Race Condition hängt das Ergebnis ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.