By W. Richard Stevens, Stephen A. Rago
For greater than two decades, severe C programmers have depended on one e-book for useful, 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 version 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 procedure that experience made this ebook so useful. development on Rich’s pioneering paintings, he starts with records, directories, and approaches, rigorously laying the basis for extra complicated options, comparable to sign dealing with and terminal I/O. He additionally completely covers threads and multithreaded programming, and socket-based IPC.
This version 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 so much out of date interfaces were got rid of, apart from a number of which are ubiquitous. approximately all examples were verified on 4 sleek 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 prior versions, you’ll examine via examples, together with greater than 10000 strains of downloadable, ISO C resource code. greater than 400 approach calls and services are confirmed with concise, entire courses that essentially illustrate their utilization, arguments, and go back values. To tie jointly what you’ve discovered, the publication offers a number of chapter-length case reviews, each one reflecting modern environments.
Advanced Programming within the UNIX® surroundings has helped generations of programmers write code with unprecedented strength, functionality, and reliability. Now up-to-date for today’s platforms, this 3rd variation might be much more beneficial.
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Additional info for Advanced Programming in the UNIX Environment (3rd Edition) (Addison-Wesley Professional Computing Series)
We then call readdir in a loop, to read each directory entry. The readdir function returns a pointer to a dirent structure or, when it’s finished with the directory, a null pointer. All we examine in the dirent structure is the name of each directory entry (d_name). 2) to determine all the attributes of the file. • We call two functions of our own to handle the errors: err_sys and err_quit. We can see from the preceding output that the err_sys function prints an informative message describing what type of error was encountered (‘‘Permission denied’’ or ‘‘Not a directory’’).
Corp. (UHC), on an Intel 80386 processor. 2. 3+BSD at the Computer Systems Research Group, Computer Science Division, University of California at Berkeley, on a Hewlett Packard workstation. 3. , on an Intel 80386 processor. 3+BSD. 4. 2 (systems with a strong Berkeley heritage but many System V features) from Sun Microsystems, on a SPARCstation SLC. 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.
Because we have to tell printf the size of each argument to be printed, we have to cast the value to the largest data type that it might use (in this case, a long integer). Although most process IDs will fit in an int, using a long promotes portability. Process Control There are three primary functions for process control: fork, exec, and waitpid. 7) that reads commands from standard input and executes the commands. This is a bare-bones implementation of a shell-like program. 7 Read commands from standard input and execute them There are several features to consider in this 30-line program.
Advanced Programming in the UNIX Environment (3rd Edition) (Addison-Wesley Professional Computing Series) by W. Richard Stevens, Stephen A. Rago