> Not to make too fine a point about it here, but file handles are perfect matches for RAII / Rust lifetimes, unlike OpenGL textures. Agreed, something like an

> Not to make too fine a point about it here, but file handles are perfect matches for RAII / Rust lifetimes, unlike OpenGL textures. Agreed, something like an FD matches RAII very well, but you can open one file multiple times, dup fds and multiple processes can do all this. So the FDs end up mapping in some non-trivial, probably refcounted way to other objects in the kernel. So it seems with OpenGL, this kind of mapping / bookkeeping layer gets hoisted up into the application framework -- which might be a reasonable choice.