liballoc

C binding of talc crate for x86 or x86_64 OS to create a scalable, high performance heap.

Usage

Download the header file and lib from releases.

Link the library to your project.

Build

Build directly to get the two target files:

cargo build --release

The production build will be in target/release/<target>/ directory.

And use cbindgen to generate the header file:

cargo install cbindgen
cbindgen --output alloc.h

Example

#include <stdint.h>
#include "alloc.h"

void test_alloc() {
    uint8_t alloc_test[500];
    bool result = heap_init((uint8_t *)alloc_test, 500);
    if (result) {
        void *ptr1 = malloc(10);
        free(ptr1);
    }
}

For general use, you can map the address space of the memory you want to use as a heap in the page table, and then pass the start address and size to the heap_init.

#include <stdint.h>
#include "alloc.h"

const uint8_t *heap_start = (uint8_t *)0x100000;
const size_t heap_size = 8 * 1024 * 1024;

void test_alloc() {
    map_page(heap_start, heap_size);
    if (heap_init(heap_start, heap_size)) {
        void *ptr1 = malloc(10);
        free(ptr1);
    }
}