viffy 0.1.5

SoA + SIMD automata generator
Documentation 
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use std::alloc::{AllocError, Allocator, Layout};
use std::ptr::NonNull;
use std::sync::Mutex;

pub struct HugeSingletonAllocator {
    memory: Mutex<*mut u8>,
}

impl HugeSingletonAllocator {
    pub fn new() -> Self {
        Self {
            memory: Mutex::new(std::ptr::null_mut()),
        }
    }
}

unsafe impl Allocator for HugeSingletonAllocator {
    fn allocate(&self, layout: Layout) -> Result<NonNull<[u8]>, AllocError> {
        let p = *self.memory.lock().unwrap();
        if p == std::ptr::null_mut() {
            std::ffi::mm
        } else {
            Err(AllocError)
        }
    }

    unsafe fn deallocate(&self, _ptr: NonNull<u8>, _layout: Layout) {

    }
}