Download E-books The Linux Programming Interface: A Linux and UNIX System Programming Handbook PDF

By Michael Kerrisk

The Linux Programming Interface is the definitive consultant to the Linux and UNIX programming interface—the interface hired by means of approximately each software that runs on a Linux or UNIX system.

In this authoritative paintings, Linux programming professional Michael Kerrisk presents special descriptions of the procedure calls and library services that you simply desire that allows you to grasp the craft of procedure programming, and accompanies his motives with transparent, whole instance programs.

You'll locate descriptions of over 500 method calls and library features, and greater than two hundred instance courses, 88 tables, and a hundred and fifteen diagrams. you are going to find out how to:

  • Read and write records efficiently
  • Use signs, clocks, and timers
  • Create methods and execute programs
  • Write safe programs
  • Write multithreaded courses utilizing POSIX threads
  • Build and use shared libraries
  • Perform interprocess verbal exchange utilizing pipes, message queues, shared reminiscence, and semaphores
  • Write community purposes with the sockets API

While The Linux Programming Interface covers a wealth of Linux-specific good points, together with epoll, inotify, and the /proc dossier procedure, its emphasis on UNIX criteria (POSIX.1-2001/SUSv3 and POSIX.1-2008/SUSv4) makes it both worthwhile to programmers engaged on different UNIX platforms.

The Linux Programming Interface is the main accomplished single-volume paintings at the Linux and UNIX programming interface, and a booklet that is destined to turn into a brand new classic.

Praise for The Linux Programming Interface

"If I needed to pick out a unmarried e-book to take a seat subsequent to my computing device while writing software program for Linux, this may be it."—Martin Landers, software program Engineer, Google

"This e-book, with its distinct descriptions and examples, comprises every little thing you want to comprehend the main points and nuances of the low-level programming APIs in Linux . . . it doesn't matter what the extent of reader, there'll be anything to be learnt from this book."—Mel Gorman, writer of Understanding the Linux digital reminiscence Manager

"Michael Kerrisk has not just written a good publication approximately Linux programming and the way it pertains to a variety of criteria, yet has additionally taken care that insects he spotted received fastened and the guy pages have been (greatly) superior. In all 3 ways, he has made Linux programming more straightforward. The in-depth remedy of themes in The Linux Programming Interface . . . makes it essential reference for either new and skilled Linux programmers."—Andreas Jaeger, application supervisor, openSUSE, Novell

"Michael's inexhaustible choice to get his info correct, and to specific it essentially and concisely, has ended in a powerful reference resource for programmers. whereas this paintings is concentrated at Linux programmers, it will likely be of price to any programmer operating within the UNIX/POSIX ecosystem."—David Butenhof, writer of Programming with POSIX Threads and Contributor to the POSIX and UNIX Standards

". . . a really thorough—yet effortless to read—explanation of UNIX method and community programming, with an emphasis on Linux structures. it truly is definitely a ebook i might suggest to anyone eager to get into UNIX programming (in normal) or to skilled UNIX programmers desirous to recognize 'what's new' within the well known GNU/Linux system."—Fernando Gont, community safety Researcher, IETF player, and RFC Author

". . . encyclopedic within the breadth and intensity of its insurance, and textbook-like in its wealth of labored examples and workouts. each one subject is obviously and comprehensively coated, from concept to hands-on operating code. pros, scholars, educators, this can be the Linux/UNIX reference that you've got been ready for."—Anthony Robins, affiliate Professor of computing device technological know-how, The college of Otago

"I've been very inspired via the precision, the standard and the extent of aspect Michael Kerrisk installed his ebook. he's a superb professional of Linux approach calls and we could us proportion his wisdom and figuring out of the Linux APIs."—Christophe Blaess, writer of Programmation systeme en C sous Linux

". . . a necessary source for the intense or specialist Linux and UNIX structures programmer. Michael Kerrisk covers using the entire key APIs throughout either the Linux and UNIX method interfaces with transparent descriptions and instructional examples and stresses the significance and merits of following criteria reminiscent of the one UNIX Specification and POSIX 1003.1."—Andrew Josey, Director, criteria, The Open crew, and Chair of the POSIX 1003.1 operating Group

"What may be greater than an encyclopedic connection with the Linux procedure, from the point of view of the method programmer, written through none except the maintainer of the fellow pages himself? The Linux Programming Interface is complete and certain. I firmly count on it to turn into an critical addition to my programming bookshelf."—Bill Gallmeister, writer of POSIX.4 Programmer's advisor: Programming for the true World

". . . the main entire and up to date booklet approximately Linux and UNIX method programming. in case you are new to Linux approach programming, if you are a UNIX veteran fascinated by portability whereas attracted to studying the Linux means, or if you are easily searching for a superb reference in regards to the Linux programming interface, then Michael Kerrisk's e-book is easily the spouse you will have in your bookshelf."—Loic Domaigne, leader software program Architect (Embedded),

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On Linux, procedure name carrier exercises mostly have names of the shape sys_xyz(), the place xyz() is the approach name in query. ) the knowledge given within the previous paragraphs is greater than we’ll often want to know for the rest of this e-book. notwithstanding, it illustrates the $64000 aspect that, even for an easy procedure name, rather a lot of labor needs to be performed, and therefore process calls have a small yet considerable overhead. for example of the overhead of constructing a process name, give some thought to the getppid() process name, which easily returns the method identification of the guardian of the calling method. On one of many author’s x86-32 platforms working Linux 2. 6. 25, 10 million calls to getppid() required nearly 2. 2 seconds to accomplish. This quantities to round zero. three microseconds in step with name. by way of comparability, at the comparable method, 10 million calls to a C functionality that easily returns an integer required zero. eleven seconds, or round one-twentieth of the time required for calls to getppid(). after all, so much method calls have considerably extra overhead than getppid(). on account that, from the viewpoint of a C software, calling the C library wrapper functionality is synonymous with invoking the corresponding approach name carrier regimen, within the rest of this ebook, we use wording reminiscent of “invoking the procedure name xyz()” to intend “calling the wrapper functionality that invokes the method name xyz(). ” S y s t e m P r o gr a m m i n g C on c e p t s forty five Application software person Mode glibc wrapper functionality (sysdeps/unix/ sysv/linux/execve. c) execve(path, argv, envp) { ... int 0x80 ... execve(path, argv, envp); ... (arguments: __NR_execve, direction, argv, envp) ... go back; (arch/x86/kernel/ process_32. c) sys_execve() { ... go back errors; seize handler (arch/x86/kernel/entry_32. S) swap to consumer mode Kernel Mode method name carrier regimen swap to kernel mode } system_call: ... name sys_call_table [__NR_execve] ... } determine 3-1: Steps within the execution of a method name Appendix A describes the strace command, which might be used to track the method calls made through a application, both for debugging reasons or just to enquire what a software is doing. additional information in regards to the Linux approach name mechanism are available in [Love, 2010], [Bovet & Cesati, 2005], and [Maxwell, 1999]. three. 2 Library services A library functionality is just one of many multitude of features that constitutes the traditional C library. (For brevity, whilst conversing a few particular functionality within the remainder of the ebook we’ll frequently simply write functionality instead of library functionality. ) the needs of those features are very diversified, together with such projects as starting a dossier, changing a time to a human-readable structure, and evaluating personality strings. Many library capabilities don’t make any use of method calls (e. g. , the stringmanipulation functions). however, a few library features are layered on most sensible of process calls. for instance, the fopen() library functionality makes use of the open() method name to really open a dossier. frequently, library services are designed to supply a extra caller-friendly interface than the underlying procedure name.

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