Luo's Memory Sandbox

A debug-oriented memory sandbox.

Luo's Memory Sandbox provides an approach to create a fully customized linear memory buffer. By offering a custom memory allocator, it can be used to find memory leaks and errors when writing data structures.

lib.rs:

Useful sandboxes for testing memory, network(todo) and file system(todo), which is useful in developing data structures.

Memory Sandboxing

The memory sandboxing part is designed for debugging data structures who manages memory ownerships. With this purpose it provides various customizable kinds of allocators. There are 4 structs in this part.

LuosAlloc is a general allocator which provides function inner to see through what had been allocated, and by using new_filled_with on creation we can easily distinguish bytes that is normal or being leaked. It adaprs for the Rust allocation API by implementing the Alloc trait.

LuosMustReplaceAlloc is like LuosAlloc, also fitted in the Rust allocation API, but every time it realloc's it ensures that new memory section is not extended from the old one, instead it always trys to allocate for new memory sections. It's useful to detect logical bugs when writing data strutures.

LuosGlobalAlloc is also able to allocate, but it implements GlobalAlloc trait instead. By using it as a global allocator we can debug our programs with the full Rust minimum-runtime allocated into it.

LuosMemory is a 16-KiB linear buffer which is used by all allocators provided in this crate. When constructing allocators from this crate, we must create a LuosMemory buffer using LuosMemory::new(), and we may create allocators using let mut a = LuosAlloc::new(LuosMemory::new()).