Noratrieb/awwoc
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nora 2022-08-20 22:36:28 +02:00
parent f725efa471
commit 4475a4f7f0
1 changed files with 26 additions and 26 deletions
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52
src/lib.rs
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@ -29,32 +29,6 @@ const BLOCK_REF_BLOCK_AMOUNT: usize = BLOCK_REF_BLOCK_SIZE / std::mem::size_of::
/// a terrible allocator that mmaps every single allocation. it's horrible. yeah.
pub struct Awwoc;
unsafe fn alloc_block_ref_block() -> Option<NonNull<BlockRef>> {
let new_ptr = map::map(BLOCK_REF_BLOCK_SIZE)?;
// we have to allocate some space for the BlockRefs themselves
let block = new_ptr.cast::<BlockRef>();
Some(block)
}
unsafe impl GlobalAlloc for Awwoc {
unsafe fn alloc(&self, layout: std::alloc::Layout) -> *mut u8 {
let mut root = lock(&ROOT);
match root.alloc_inner(layout) {
Some(ptr) => ptr.as_ptr(),
None => null_mut(),
}
}
unsafe fn dealloc(&self, ptr: *mut u8, _layout: std::alloc::Layout) {
let mut root = lock(&ROOT);
root.dealloc(ptr);
}
}
static ROOT: Mutex<RootNode> = Mutex::new(RootNode::new());
/// ┌──────────────────────────────────────────────────────────────────────────┐
@ -248,6 +222,32 @@ impl RootNode {
}
}
unsafe fn alloc_block_ref_block() -> Option<NonNull<BlockRef>> {
let new_ptr = map::map(BLOCK_REF_BLOCK_SIZE)?;
// we have to allocate some space for the BlockRefs themselves
let block = new_ptr.cast::<BlockRef>();
Some(block)
}
unsafe impl GlobalAlloc for Awwoc {
unsafe fn alloc(&self, layout: std::alloc::Layout) -> *mut u8 {
let mut root = lock(&ROOT);
match root.alloc_inner(layout) {
Some(ptr) => ptr.as_ptr(),
None => null_mut(),
}
}
unsafe fn dealloc(&self, ptr: *mut u8, _layout: std::alloc::Layout) {
let mut root = lock(&ROOT);
root.dealloc(ptr);
}
}
// SAFETY: I guess
unsafe impl Send for RootNode {}