Jeremy Soller
39 lines
929 B
Rust
39 lines
929 B
Rust
use core::alloc::{GlobalAlloc, Layout};
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use super::types::*;
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extern "C" {
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fn dlmalloc(bytes: size_t) -> *mut c_void;
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fn dlmemalign(alignment: size_t, bytes: size_t) -> *mut c_void;
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fn dlrealloc(oldmem: *mut c_void, bytes: size_t) -> *mut c_void;
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fn dlfree(mem: *mut c_void);
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}
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pub struct Allocator;
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unsafe impl<'a> GlobalAlloc for Allocator {
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unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
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alloc_align(layout.size(), layout.align()) as *mut u8
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}
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unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) {
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free(ptr as *mut c_void)
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}
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}
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pub unsafe fn alloc(size: usize) -> *mut c_void {
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dlmalloc(size)
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}
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pub unsafe fn alloc_align(size: usize, alignment: usize) -> *mut c_void {
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dlmemalign(alignment, size)
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}
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pub unsafe fn realloc(ptr: *mut c_void, size: size_t) -> *mut c_void {
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dlrealloc(ptr, size)
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}
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pub unsafe fn free(ptr: *mut c_void) {
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dlfree(ptr)
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}
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