January 2004
Intermediate to advanced
432 pages
11h 1m
English
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Signal Delivery
Signal delivery became much more complicated with the advent of multithreaded processes. The kernel has to support the old paradigm of delivering a signal to a process as well as to deliver the signal to a particular thread within the process. Signal delivery is further complicated because the interface to the kill() system call is complicated—a pretty good feat for a system call with only two arguments.
The kill() system call is the way a process sends a signal. The first argument is the PID of the process to which the signal should be sent, and the second argument is the number of the signal to send. The complication comes from the PID argument, which can take on values other than an actual PID. If the specified PID is zero, ...
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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.