memapi_mimalloc_sys/
lib.rs

1#![no_std]
2
3use core::ffi::c_void;
4
5extern crate libc;
6
7#[cfg(feature = "extended")]
8mod extended;
9#[cfg(feature = "extended")]
10pub use extended::*;
11
12extern "C" {
13    /// Allocate zero-initialized `size` bytes.
14    ///
15    /// Returns a pointer to newly allocated zero-initialized memory, or null if out of memory.
16    pub fn mi_zalloc(size: usize) -> *mut c_void;
17
18    /// Allocate `size` uninitialized bytes.
19    ///
20    /// Returns a pointer to the allocated memory or null if out of memory. The pointer will still
21    /// be unique if `size` is 0.
22    pub fn mi_malloc(size: usize) -> *mut c_void;
23
24    /// Reallocates memory to `new_size` bytes.
25    ///
26    /// Returns a pointer to the allocated memory or null if out of memory.
27    ///
28    /// If null is returned, the pointer `p` is not freed. Otherwise, the original pointer is either
29    /// freed or returned as the result if the reallocation fits in-place with the new size.
30    ///
31    /// If `p` is null, this is equivalent to [`mi_malloc`]. If `new_size` is larger than the
32    /// original `size` allocated for `p`, the bytes after `size` are uninitialized.
33    pub fn mi_realloc(p: *mut c_void, new_size: usize) -> *mut c_void;
34
35    /// Allocate `size` zeroed bytes with an alignment of `align`, initialized to zero.
36    ///
37    /// Returns a pointer to the allocated memory or null if out of memory. The pointer will still
38    /// be unique if `size` is 0.`
39    pub fn mi_zalloc_aligned(size: usize, align: usize) -> *mut c_void;
40
41    /// Allocate `size` uninitialized bytes with an alignment of `align`.
42    ///
43    /// Returns a pointer to the allocated memory or null if out of memory. The pointer will still
44    /// be unique if `size` is 0.`
45    pub fn mi_malloc_aligned(size: usize, align: usize) -> *mut c_void;
46
47    /// Re-allocate memory to a size of `new_size` bytes, with an alignment of `align`.
48    ///
49    /// Returns a pointer to the allocated memory or null if out of memory.
50    ///
51    /// If null is returned, the pointer `p` is not freed. Otherwise, the original pointer is either
52    /// freed or returned as the result if the reallocation fits in-place with the new size.
53    ///
54    /// If `p` is null, this is equivalent to [`mi_malloc_aligned`]. If `new_size` is
55    /// larger than the original `size` allocated for `p`, the bytes after `size` are uninitialized.
56    pub fn mi_realloc_aligned(p: *mut c_void, new_size: usize, align: usize) -> *mut c_void;
57
58    /// Deallocates previously allocated memory.
59    ///
60    /// The pointer `p` must have been allocated before or be null.
61    pub fn mi_free(p: *mut c_void);
62}
memapi_mimalloc_sys/lib.rs

memapi_mimalloc_sys/
lib.rs
