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rustdoc: Add some basic Safety sections to unsafe functions (#31639)

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Martin Robinson 2024-03-13 11:44:59 +01:00 • committed by GitHub
parent 0860deba05
commit 38db1a5ce9
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12
components/allocator/lib.rs
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@ -16,6 +16,10 @@ mod platform {
pub use jemallocator::Jemalloc as Allocator;
/// Get the size of a heap block.
///
/// # Safety
///
/// Passing a non-heap allocated pointer to this function results in undefined behavior.
pub unsafe extern "C" fn usable_size(ptr: *const c_void) -> usize {
jemallocator::usable_size(ptr)
}
@ -35,6 +39,10 @@ mod platform {
use std::os::raw::c_void;
/// Get the size of a heap block.
///
/// # Safety
///
/// Passing a non-heap allocated pointer to this function results in undefined behavior.
pub unsafe extern "C" fn usable_size(ptr: *const c_void) -> usize {
#[cfg(target_vendor = "apple")]
return libc::malloc_size(ptr);
@ -56,6 +64,10 @@ mod platform {
use winapi::um::heapapi::{GetProcessHeap, HeapSize, HeapValidate};
/// Get the size of a heap block.
///
/// # Safety
///
/// Passing a non-heap allocated pointer to this function results in undefined behavior.
pub unsafe extern "C" fn usable_size(mut ptr: *const c_void) -> usize {
let heap = GetProcessHeap();