[test] Trigger failures via USR1/USR2

[Arpafaucon]

Add signal handlers to trigger special conditions in tracy-test. This proves useful when working on the capture utility to check edge conditions.

USR1: abort the program

example of call & output

in the profiler:

USR2: send buggy TracyFree event, to trigger an instrumentation failure

❯ timeout --signal USR2 0.4 ./tracy-test
Triggering instrumentation failure
terminate called without an active exception
timeout: the monitored command dumped core

[wolfpld]

Use signal.h.

[Arpafaucon]

done. Out of curiosity, what's the difference ? (always though it was the same header, but for C++)

[wolfpld]

csignal guarantees that functions are available in the std namespace, and maybe in the global one.
signal.h guarantees that functions are available in the global namespace, and maybe in std.

[Arpafaucon]

thanks for the explanation !