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lib.rs
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lib.rs
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//! Alloc support for the Flipper Zero.
//! *Note:* This currently requires using nightly.
#![no_std]
#![feature(alloc_error_handler)]
use core::alloc::{GlobalAlloc, Layout};
use core::ffi::c_void;
use flipperzero_sys as sys;
pub struct FuriAlloc;
unsafe impl GlobalAlloc for FuriAlloc {
#[inline]
unsafe fn alloc(&self, layout: Layout) -> *mut u8 {
sys::aligned_malloc(layout.size(), layout.align()) as *mut u8
}
#[inline]
unsafe fn dealloc(&self, ptr: *mut u8, _layout: Layout) {
sys::aligned_free(ptr as *mut c_void);
}
#[inline]
unsafe fn alloc_zeroed(&self, layout: Layout) -> *mut u8 {
// https://github.com/flipperdevices/flipperzero-firmware/issues/1747#issuecomment-1253636552
self.alloc(layout)
}
}
#[global_allocator]
static ALLOCATOR: FuriAlloc = FuriAlloc;
#[alloc_error_handler]
fn on_oom(_layout: Layout) -> ! {
unsafe {
sys::furi_thread_yield();
sys::crash!("Rust: Out of Memory");
}
}