#include <libk/std.h>
#include <proc/mem.h>
#include <proc/proc.h>
#include <proc/resource.h>
#include <sync/spin_lock.h>

void proc_mem_unref (struct proc* proc, struct proc_resource_mem* mem, size_t pages) {
  spin_lock_ctx_t ctxrs;

  spin_lock (&mem->resource->lock, &ctxrs);
  mem->alive_pages -= pages;
  ptrdiff_t current_pages = mem->alive_pages;
  spin_unlock (&mem->resource->lock, &ctxrs);

  if (current_pages <= 0)
    proc_drop_resource (proc, mem->resource);
}