To be clearer, SIGALRM handlers inside the child thread are apparently never reached.

By that, I assume you mean that alarms raised in one thread are not caught in other threads.

Why would you expect that they would be? Signals don't cross fork boundaries, so why expect they might cross thread boundaries?

Remember, there is no parent-child relationship between threads, so if an alarm raised in one thread could be caught in a thread it spawned, it would also be caught by every other thread in the program.

There would simply be no way to reason about a system that meant that every thread received every signal raised in any other thread.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
RIP an inspiration; A true Folk's Guy

In reply to Re^2: Threads, bash, and networking by BrowserUk
in thread Threads, bash, and networking by morganda

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