Another signal handling bug?

[David A. Gatwood]

On Thu, 17 Aug 2000, Kevin B. Hendricks wrote:

> Hi David,
>
> If you are grabbing mutexes in a signal handler, you are obviously in a
> multithreaded environment.  When you set the sa_flags to zero you may prevent
> that thread from recursing in the signal handler but the signal could be delived
> to another thread which in fact has its own signal mask and things but shares
> sigaction strucutres and it could be entering your signal handler.
>
> Just a thought, but something to possibly check out.

Already did.  I thought I said that in the original message, but that's
probably been lost for some time in everyone's inbox.  ;-)

Anyway, the program blocks SIGALRM before it spawns threads, and only
unmasks it in the desired thread.


David

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