Bulletproof load from memory

You don't know whether a memory location is valid? Don't worry, Here's the bulletproof load!

Usage

Add this to your Cargo.toml:

toml [dependencies] bulletproof = "0.1"

Next, use bulletproof loader as follows:

```rust extern crate bulletproof;

fn main() { unsafe { let loader = bulletproof::Loader::new(); asserteq!(loader.loadusize(&42), Ok(42)); asserteq!(loader.loadusize(::std::ptr::null()), Err(()));

    assert_eq!(loader.load(&42u8), Ok(42));
    assert_eq!(loader.load::<[u8; 32]>(::std::ptr::null()), Err(()));
}

} ```

How?

Internally, Loader::new() installs a signal handler for segmentation fault (SIGSEGV), which recovers from the fault using siglongjmp().

Why?

You PROBABLY should not use this library: instead of relying on bulletproof load, remove your segmentation faults! However, if you want to build low-level systems such as virtual machine or garbage collectors, bulletproof load can be a versatile tool for an additional bit of efficiency. For example, see the ThreadCrashProtection class in Java HotSpot virtual machine.

License

Licensed under the terms of MIT license and the Apache License (Version 2.0).

See LICENSE-MIT and LICENSE-APACHE for details.