Advanced Programming in the Unix Environment
- W. Richard Stevens
- Addison Wesley
- ISBN: 0-201-56317-7
Order (or just read more about) Advanced Programming from Amazon.com
This is the nitty-gritty reference and programming guide for
The information found here is not in the manuals, is not in the
include files, but is here.
Stevens covers both System V Release 4 and 4.4BSD. This adds
tremendous value, especially for those of us who sometimes need to
port things from here to there or back again.
Stevens approaches the subject by breaking it down into major
chunks. Chapter 3, for example, is File I/O. He briefly introduces
the subject, explains file descriptors and the conventions of their
enumeration, notes the POSIX constants and discusses limits. He
then jumps into actual calls, starting (of course) with open().
As would be expected, Stevens details open()'s arguments, the
include's necessary, and the possible returns. You could get that
from a man page, but Stevens takes it further, discussing the
variances of SVR4 and 4.3BSD vs. POSIX. He covers the rest of the
related calls (creat, close,lseek,read,write), giving examples and
showing output from those examples, and then jumps into I/O
efficiency, file sharing, appending, dup'ing file descriptors and
so on. He therefore covers File I/O as completely as you could ask
for, and this, of course, is just one chapter.
Stevens writing is clear, his examples are useful, and his level
of detail is wonderful. This is a must have book for anyone
programming on Unix.
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