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Ok, this doesn't work either. Because those functions are not supported on the target machine.

I now realized that I need to save two values per array position instead of one. Now my question is how to do this without breaking it.

Fill the array with structs holding two elements (integers)?...

Locking the list is not an option.

If the list is locked and another signal comes in while the list is locked, the 2nd signal handler will go into a deadlock, because the 1st signal handler waits...

Ok, but I need to safe an integer value retrieved by the signal handler. Can I do that?
(If multiple signals come in I have to safe multiple integer values)

Hello,

I have a signal handler which manipulates a data structure. The data structure's operations aren't atomic. So if two threads/processes are in a critical section at the same time the data...