IOS/FS: Add a scoped FD class to make it harder to leak FDs

This changes FileSystemProxy::Open to return a file descriptor wrapper
that will ensure the FD is closed when it goes out of scope.

By using such a wrapper we make it more difficult to forget to close
file descriptors.

This fixes a leak in ReadBootContent. I should have added such a class
from the beginning... In practice, I don't think this would have caused
any obvious issue because ReadBootContent is only called after an IOS
relaunch -- which clears all FDs -- and most titles do not get close
to the FD limit.

0 files changed, 0 insertions, 0 deletions