CODEWITHSUNDEEP
clinux
Jacob
Jacob

Reputation: 835

Linux: Whether calling wait() from one thread will cause all other threads also to go to sleep?

"The wait() system call suspends execution of the current process until one of its children terminates" . Waitpid also is similar.

My Question is whether calling wait() from one thread will cause all other threads (in the same process) also to go to sleep ? Do the behavior is same for detached threads also?

Upvotes: 0

Views: 453

Answers (3)

Irony
Irony

Reputation: 327

Should only stop the current thread. If you want to make people ill when they look at your code and cause yourself a lot of problems you can use this for jury rigged thread synchronization. I wouldn't reccommend it though.

Upvotes: 0

R.. GitHub STOP HELPING ICE
R.. GitHub STOP HELPING ICE

Reputation: 215287

This is just a bug in the manual. wait suspends the calling thread, not the process. There is absolutely no way to suspend the whole process short of sending it SIGSTOP or manually suspending each thread one at a time.

Upvotes: 4

DarkMantis
DarkMantis

Reputation: 1516

As far as I know, calling wait from any thread will cause all threads which are associated with that process to halt.

But don't hold me to that. Best thing to do would be to test it.

Upvotes: 0

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