#include <string.h>
#include <stdio.h>
#include <sys/mman.h>
#include "alloc.h"


/**
 * alloc.
 *
 * Allocate n bytes memory in the virtual address space.
 *
 * Example
 *
 * int* p = (int *)lalloc(sizeof(int));
 * *p = 1;
 * printf("%d\n", *p);
 * lfree(p, sizeof(int));
 *
 */
void* lalloc(size_t bytes) {
    void* p = NULL;

    p = mmap(
        0,
        bytes,
        PROT_READ | PROT_WRITE,
        MAP_PRIVATE | MAP_ANONYMOUS | MAP_NORESERVE,
        -1,
        0
    );

    return p;
}

void lfree(void* p, size_t bytes) {
    munmap(p, bytes);
}