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Hands-On System Programming with Linux
book

Hands-On System Programming with Linux

by Kaiwan N. Billimoria, Tigran Aivazian
October 2018
Beginner content levelBeginner
794 pages
19h 23m
English
Packt Publishing
Content preview from Hands-On System Programming with Linux

Joining

Imagine an application where a thread (typically, main) has spawned off several other worker threads. Each worker thread has a specific job to do; once done, it terminates (via pthread_exit(3)). How will the creator thread know when a worker thread is done (terminated)? Ah, that is precisely where joining comes in. With the join, the creator thread can wait for, or block upon, the death (termination) of another thread within the process!

Does this not sound very much like the wait(2) system call that a parent process issues to wait for the death of a child? True, but as we shall see shortly, it's certainly not identical.

Also, importantly, the return value from the thread that terminated is passed along to the thread that issued ...

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Publisher Resources

ISBN: 9781788998475Supplemental Content