/**
* Free a block of memory, determining its size automatically.
*
* \param h Heap from which the block was allocated.
* \param mem Pointer to a block of memory previously allocated with
* either heap_malloc() or heap_calloc().
*
* \note If \a mem is a NULL pointer, no operation is performed.
*
* \note Freeing the same memory block twice has undefined behavior.
*
* \note This function works like the ANSI C free().
*/
void heap_free(struct Heap *h, void *mem)
{
size_t *_mem = (size_t *)mem;
if (_mem)
{
--_mem;
heap_freemem(h, _mem, *_mem);
}
}
/**
* Free all the resources of all zombie processes previously added to the zombie
* list.
*/
static void proc_freeZombies(void)
{
Process *proc;
while (1)
{
PROC_ATOMIC(proc = (Process *)list_remHead(&zombie_list));
if (proc == NULL)
return;
if (proc->flags & PF_FREESTACK)
{
PROC_ATOMIC(heap_freemem(&proc_heap, proc->stack_base,
proc->stack_size + PROC_SIZE_WORDS * sizeof(cpu_stack_t)));
}
}
}
