[ Thanks to JJS
for this link. ]
“What I have found in programming books, including
those by the late W. Richard Stevens (which I turn to most often)
is usually a good start, but never the whole story. But since this
is not a general programming text, I will focus on a single issue
in detail. This post will cover using semaphores.“First, a little background on locks, in case you have never
used them. In *nix, process locks are implemented with the
semaphore system calls. Since I use child processes that share
memory, I have to implement semaphores. Threads use pthread_mutex
calls, which do essentially what these functions do, and then
some.”
Web Webster has more than 20 years of writing and editorial experience in the tech sector. He’s written and edited news, demand generation, user-focused, and thought leadership content for business software solutions, consumer tech, and Linux Today, he edits and writes for a portfolio of tech industry news and analysis websites including webopedia.com, and DatabaseJournal.com.
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