haz_alloc/
lib.rs

1#![feature(linkage)]
2#![warn(clippy::all)]
3
4use std::alloc::{GlobalAlloc, Layout};
5
6mod sys;
7mod sys_common;
8
9#[derive(Clone, Copy)]
10pub struct Alloc {
11    alloc: haz_alloc_core::Alloc<sys::Backend>,
12}
13
14impl Alloc {
15    pub const fn new() -> Self {
16        Alloc {
17            alloc: unsafe { haz_alloc_core::Alloc::new() },
18        }
19    }
20}
21
22impl Alloc {
23    /// # Safety
24    ///
25    /// Layout must be valid.
26    #[inline]
27    pub unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
28        self.alloc.alloc(layout)
29    }
30
31    /// # Safety
32    ///
33    /// Layout must be valid.
34    #[inline]
35    pub unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {
36        self.alloc.alloc_zeroed(layout)
37    }
38
39    /// # Safety
40    ///
41    /// Layout and pointer must be valid.
42    ///
43    /// Alignment must match of original allocation.
44    #[inline]
45    pub unsafe fn realloc(&self, ptr: *mut u8, layout: Layout) -> *mut u8 {
46        self.alloc.realloc(ptr, layout)
47    }
48
49    /// # Safety
50    ///
51    /// Pointer must be valid.
52    #[inline]
53    pub unsafe fn dealloc(&self, ptr: *mut u8) {
54        self.alloc.dealloc(ptr)
55    }
56
57    /// # Safety
58    ///
59    /// Pointer must be valid.
60    #[inline]
61    pub unsafe fn size(&self, ptr: *mut u8) -> usize {
62        self.alloc.size(ptr)
63    }
64}
65
66unsafe impl GlobalAlloc for Alloc {
67    #[inline]
68    unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
69        self.alloc(layout)
70    }
71
72    #[inline]
73    unsafe fn dealloc(&self, ptr: *mut u8, _: Layout) {
74        self.dealloc(ptr)
75    }
76
77    #[inline]
78    unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {
79        self.alloc_zeroed(layout)
80    }
81
82    #[inline]
83    unsafe fn realloc(&self, ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8 {
84        self.realloc(
85            ptr,
86            Layout::from_size_align_unchecked(new_size, layout.align()),
87        )
88    }
89}
90
91impl Default for Alloc {
92    fn default() -> Self {
93        Alloc::new()
94    }
95}
haz_alloc/lib.rs

haz_alloc/
lib.rs
