Large reorganization of headers (WIP)

src/platform/allocator/dlmalloc.rs

@@ -0,0 +1,38 @@
+use core::alloc::{GlobalAlloc, Layout};
+
+use types::*;
+
+extern "C" {
+    fn dlmalloc(bytes: size_t) -> *mut c_void;
+    fn dlmemalign(alignment: size_t, bytes: size_t) -> *mut c_void;
+    fn dlrealloc(oldmem: *mut c_void, bytes: size_t) -> *mut c_void;
+    fn dlfree(mem: *mut c_void);
+}
+
+pub struct Allocator;
+
+unsafe impl<'a> GlobalAlloc for Allocator {
+    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
+        dlmemalign(layout.align(), layout.size()) as *mut u8
+    }
+
+    unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) {
+        dlfree(ptr as *mut c_void)
+    }
+}
+
+pub unsafe fn alloc(size: usize) -> *mut c_void {
+    dlmalloc(size)
+}
+
+pub unsafe fn alloc_align(size: usize, alignment: usize) -> *mut c_void {
+    dlmemalign(alignment, size)
+}
+
+pub unsafe fn realloc(ptr: *mut c_void, size: size_t) -> *mut c_void {
+    dlrealloc(ptr, size)
+}
+
+pub unsafe fn free(ptr: *mut c_void) {
+    dlfree(ptr)
+}