Hi, I'm having an issue when waiting on a pthread condition variable from the main thread and then a signal handler runs, which should cancel the wait since I have cancellation points enabled, however this did not happen. While debugging I see the main thread blocked when standing inside the signal handler. Here's the call graph at that point:
If I continue execution, the main thread never runs. I'm wondering if that call to nxsem_wait_uninterruptible is correct since it would seem that is exactly why this is not being canceled. Note that I was initially signaling the condition variable from within the signal handler but this did not work either. However, looking at pthread documentation this is supposedly not supported: https://linux.die.net/man/3/pthread_cond_signal (I'm not sure if that really applies to NuttX though). Also, I'm mixing signals with threads because I'm using POSIX timers which require signals to be handled, so I'm stuck with this. I think supporting timerfd would be really useful (as I could then have a thread that waits on the fd of the timer). Best, Matias
