On 2016-03-22 9:03 AM, Henri Sivonen wrote:
It seems that the Rust MP4 parser is run a new Rust-created thread in
order to catch panics. Once we introduce Rust code that intermingles
with C++ more, it won't be practical to put all potentially panicing
Rust code into dedicated threads.
Can we install a custom panic function that detects whether it's
running on a Rust-created thread and performs a normal Rust panic if
it is and performs a MOZ_CRASH if not (i.e. if it is on a
non-Rust-created thread)?
It is possible to install a custom hook for panicking [1] assuming you
can use unstable features in the compiler right now. What is less clear
to me is how to determine the creator of the current thread.
[1] http://doc.servo.org/std/panic/index.html
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