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use crate::alloc::{GlobalAlloc, Layout, System};
use crate::ptr;
use crate::sys::hermit::abi;
#[stable(feature = "alloc_system_type", since = "1.28.0")]
unsafe impl GlobalAlloc for System {
#[inline]
unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
abi::malloc(layout.size(), layout.align())
}
unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {
let addr = abi::malloc(layout.size(), layout.align());
if !addr.is_null() {
ptr::write_bytes(
addr,
0x00,
layout.size()
);
}
addr
}
#[inline]
unsafe fn dealloc(&self, ptr: *mut u8, layout: Layout) {
abi::free(ptr, layout.size(), layout.align())
}
#[inline]
unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {
abi::realloc(ptr, layout.size(), layout.align(), new_size)
}
}
|
