cxiao, 1 year ago

The Rust Windows kernel GDI code also has symbols for fallible_vec::FallibleVec<T,A> , which looks like a non-panicking Vec implementation. try_extend, try_extend_from_slice, try_splice_in, and try_insert are all implemented.

In fact it looks suspiciously similar to the rust_fallible_vec crate, which Microsoft recently open-sourced: https://github.com/microsoft/rust_fallible_vec :thonking:
( @TehPenguin 👋 )

The methods are generic over the allocator type A; some of these FallibleVec method implementations use the registered global allocator gdi_alloc::Win32Allocator , and others use the gdi_alloc::TaggedAllocator with the GDI-specific pool tags.

#rust #rustlang #windows #microsoft #reversing #reverseengineering

An annotated implementation, in Binary Ninja, of a function named fallible_vec::FallibleVec::try_extend, where A is likely the allocator type gdi_alloc::Win32Allocator.