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Linux System Programming: Talking Directly to the Kernel and C Library (Englisch) Taschenbuch – Oktober 2007

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This book is about writing software that makes the most effective use of the system you're running on - code that interfaces directly with the kernel and core system libraries, including the shell, text editor, compiler, debugger, core utilities, and system daemons. The majority of both Unix and Linux code is still written at the system level, and "Linux System Programming" focuses on everything above the kernel, where applications such as Apache, bash, cp, vim, Emacs, gcc, gdb, glibc, ls, mv, and X exist. Written primarily for engineers looking to program (better) at the low level, this book is an ideal teaching tool for any programmer. Even with the trend toward high-level development, either through web software (such as PHP) or managed code (C#), someone still has to write the PHP interpreter and the C# virtual machine. "Linux System Programming" gives you an understanding of core internals that makes for better code, no matter where it appears in the stack. Debugging high-level code often requires you to understand the system calls and kernel behavior of your operating system, too.

Key topics include: an overview of Linux, the kernel, the C library, and the C compiler; reading from and writing to files, along with other basic file I/O operations, including how the Linux kernel implements and manages file I/O; buffer size management, including the Standard I/O library; advanced I/O interfaces, memory mappings, and optimization techniques; the family of system calls for basic process management; advanced process management, including real-time processes; file and directories-creating, moving, copying, deleting, and managing them; memory management - interfaces for allocating memory, managing the memory you have, and optimizing your memory access; signals and their role on a Unix system, plus basic and advanced signal interfaces; and, time, sleeping, and clock management, starting with the basics and continuing through POSIX clocks and high resolution timers. With "Linux System Programming", you will be able to take an in-depth look at Linux from both a theoretical and an applied perspective as you cover a wide range of programming topics.

Über den Autor und weitere Mitwirkende

Robert Love has used Linux since the early days. He is involved in and passionate about both the Linux kernel and GNOME communities. He has written and maintained numerous projects, including the preemptive kernel, GNOME Volume Manager, and inotify.Robert is Chief Architect, Linux Desktop, at Novell.He is the author of Linux Kernel Development (SAMS 2005) and the co-author of Linux in a Nutshell (2006 O'Reilly). He is currently working on a new work for O'Reilly that will be the greatest book ever written, give or take.Robert is a Contributing Editor at Linux Journal.He holds a B.A. in Mathematics and a B.S. in Computer Science from the University of Florida. A proud Gator, Robert was born in South Florida but currently calls home Cambridge, MA.

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42 von 43 Kunden fanden die folgende Rezension hilfreich
Not quite deep enough 15. November 2007
Von Simon Perreault - Veröffentlicht auf
Format: Taschenbuch
Overall this book is very good. It is particularly well written and enjoyable to read, as are all of Robert Love's previous books.

However, it's fairly small and could go into more detail. For example, I would have liked a discussion of edge-triggered vs. level-triggered epoll() usage. The author mentions that edge-triggered needs a different programming style. What is it? Is it better? Regarding signal handling, the author hints at injecting signals into the event loop, but how could one do it concretely? On the subject of I/O buffering, not much is said except that standard I/O exists. But I'm here for the meat, and I want to know how to implement my own I/O buffering! Pretty much every chapter ends when the fun is about to begin.

I'm still hungry. Nevertheless, every system programmer for Linux should read this book. I hope for an expanded second edition.
33 von 36 Kunden fanden die folgende Rezension hilfreich
a book full of hints, but seldom tells you how to actually do it 22. November 2007
Von a reader - Veröffentlicht auf
Format: Taschenbuch
I have to agree completely with the previous reviewer that this book lacks meat. In this book, after discussing each issue, the author typically hints that there exists a solution, but does not tell you exactly how to implement the solution. The book is sprinkled with snippets of code that are almost always incomplete, and very rarely explained.
In the Bibliography section, the author did not include two of the most important books that cover related material: 1. "Advanced Programming in the UNIX Environment," by W. Richard Stevens, and 2. "Programming with POSIX Threads," by David R. Butenhof. Perhaps the author did not want readers to compare his book to these two books, because in these two books, every important concept is illustrated with program code examples that are fully compilable, fully working, and fully explained!
The author could make a very significant contribution if only he could follow the examples of the above two books.
38 von 42 Kunden fanden die folgende Rezension hilfreich
Not worth money 13. April 2008
Von Jaebin Yoon - Veröffentlicht auf
Format: Taschenbuch
If you expect the quality of the author's other books from this book, you'll be disappointed. It just lists system calls and their descriptions that you can find from man pages without any serious examples. It doesn't provide any insight or thorough coverage you can find from other books such as Steven's book (Advance Programmng in Unix environment).

From the book title, I expected the author's insight over interface between user space program and kernel but it just looks like that it copied man pages in some order. If you want to learn sysetm programming in Linux environment, look for other books, seriously.
7 von 8 Kunden fanden die folgende Rezension hilfreich
The book truly is for all developers 16. Mai 2008
Von howard - Veröffentlicht auf
Format: Taschenbuch Verifizierter Kauf
I have been programming C/C++ professionally since 1986 and was surprised at how much I've learned in the first few chapters.

One of the programs that I've been working on is an I/O intensive conversion from a legacy platform to Linux. The original code took about 8 minutes per gigabyte of data to process. I had worked and squeezed every trick I could think of and got the application down to 10 seconds per gigabyte. From what I learned in just the first few chapters, I was able to knock an additional 3% off the application performance. (It has been mentioned that I should state that I had been unaware of fread_unlocked and fwrite_unlocked before the book ... see comments for more detailed discussion).

When I finish the book, I fully intend on passing it over to one of our junior members so that they can benefit from it.
2 von 2 Kunden fanden die folgende Rezension hilfreich
Not necessarily just linux 9. Juli 2012
Von richendes - Veröffentlicht auf
Format: Taschenbuch Verifizierter Kauf
This book, at first glance looks like its only going to be applicable to linux. This isn't the case, it looks more at system level programming; the standard library; for unix including some parts of BSD. Any interface that is only for use on linux is explicitly stated so.

I found this book very easy to read and as other reviews say it mostly just lists the calls and describes them, but it does so very clearly and explains uses for them and the pros and cons of each. For me I got the book so I understood how linux worked under-the-hood and for this, this book does a very good job. It explains how the operating system communicates with the disc, how processes are implemented and how reading and writing onto the disc is optimised for performance and efficiency. I'm only half way though but I'm finding it very insightful and getting more out of it to what I thought I would.
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