#include "kmalloc.h"

static void *kernel_heap_start; // Start of the kernel heap
static void *kernel_heap_end;   // End of the kernel heap

void init_kernel_heap(void *start, void *end) {
    kernel_heap_start = start;
    kernel_heap_end = end;
    // Initialize the kernel heap here
}

void *kmalloc(size_t size) {
    if (kernel_heap_start == NULL || kernel_heap_end == NULL) {
        // Kernel heap not initialized, cannot allocate
        return NULL;
    }

    // Align the size to the word size for efficiency
    size += sizeof(size_t) -  1;
    size &= ~(sizeof(size_t) -  1);

    // Search for a free block of sufficient size
    // This is a placeholder for the actual algorithm
    void *block = find_free_kernel_block(size);
    if (block != NULL) {
        // Mark the block as used
        mark_as_used_kernel(block, size);
        return block;
    }

    // No suitable block found, out of memory
    return NULL;
}

void kfree(void *ptr) {
    if (ptr == NULL) {
        return;
    }

    // Mark the block as free
    // This is a placeholder for the actual algorithm
    mark_as_free_kernel(ptr);
}
