Download Advanced Programming in the UNIX Environment (3rd Edition) by W. Richard Stevens, Stephen A. Rago PDF

By W. Richard Stevens, Stephen A. Rago

For greater than 20 years, severe C programmers have depended on one e-book for functional, in-depth wisdom of the programming interfaces that force the UNIX and Linux kernels: W. Richard Stevens’ Advanced Programming within the UNIX® Environment . Now, once more, Rich’s colleague Steve Rago has completely up to date this vintage paintings. the hot 3rd variation helps today’s prime systems, displays new technical advances and top practices, and aligns with model four of the only UNIX Specification.

Steve rigorously keeps the spirit and method that experience made this e-book so invaluable. development on Rich’s pioneering paintings, he starts with records, directories, and approaches, rigorously laying the foundation for extra complex thoughts, reminiscent of sign dealing with and terminal I/O. He additionally completely covers threads and multithreaded programming, and socket-based IPC.

This variation covers greater than seventy new interfaces, together with POSIX asynchronous I/O, spin locks, boundaries, and POSIX semaphores. so much out of date interfaces were got rid of, with the exception of a number of which are ubiquitous. approximately all examples were demonstrated on 4 smooth systems: Solaris 10, Mac OS X model 10.6.8 (Darwin 10.8.0), FreeBSD 8.0, and Ubuntu model 12.04 (based on Linux 3.2).

As in past versions, you’ll research via examples, together with greater than 10000 strains of downloadable, ISO C resource code. greater than 400 method calls and features are established with concise, entire courses that basically illustrate their utilization, arguments, and go back values. To tie jointly what you’ve discovered, the e-book provides numerous chapter-length case reports, each one reflecting modern environments.

Advanced Programming within the UNIX® surroundings has helped generations of programmers write code with remarkable energy, functionality, and reliability. Now up-to-date for today’s platforms, this 3rd variation should be much more invaluable.

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Numerous timing tests are provided in the text and the systems used for the test are identified. xxxii Preface to the First Edition Acknowledgments Once again I am indebted to my family for their love, support, and many lost weekends over the past year and a half. Writing a book is, in many ways, a family affair. Thank you Sally, Bill, Ellen, and David. I am especially grateful to Brian Kernighan for his help in the book. His numerous thorough reviews of the entire manuscript and his gentle prodding for better prose hopefully show in the final result.

H> defines the symbol errno and constants for each value that errno can assume. Each of these constants begins with the character E. Also, the first page of Section 2 of the UNIX system manuals, named intro(2), usually lists all these error constants. For example, if errno is equal to the constant EACCES, this indicates a permission problem, such as insufficient permission to open the requested file. On Linux, the error constants are listed in the errno(3) manual page. POSIX and ISO C define errno as a symbol expanding into a modifiable lvalue of type integer.

These functions all work with file descriptors. 4 copies any regular file on a UNIX system. h, and the two constants STDIN_FILENO and STDOUT_FILENO are part of the POSIX standard (about which we’ll have a lot more to say in the next chapter). This header contains function prototypes for many of the UNIX system services, such as the read and write functions that we call. h> and specify the file descriptors for standard input and standard output. 1, but we’ll use the names for readability. 9, we’ll examine the BUFFSIZE constant in detail, seeing how various values affect the efficiency of the program.

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