bool ia_css_refcount_is_single(hrt_vaddress ptr)
{
struct ia_css_refcount_entry *entry;
if (ptr == mmgr_NULL)
return false;
entry = refcount_find_entry(ptr, false);
if (entry)
return (entry->count == 1);
return true;
}
hrt_vaddress ia_css_refcount_increment(int32_t id, hrt_vaddress ptr)
{
struct ia_css_refcount_entry *entry;
if (ptr == mmgr_NULL)
return ptr;
entry = refcount_find_entry(ptr, false);
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
"ia_css_refcount_increment(%x) 0x%x\n", id, ptr);
if (!entry) {
entry = refcount_find_entry(ptr, true);
assert(entry != NULL);
if (entry == NULL)
return mmgr_NULL;
entry->id = id;
}
if (entry->id != id) {
ia_css_debug_dtrace(IA_CSS_DEBUG_ERROR,
"ia_css_refcount_increment(): Ref count IDS do not match!\n");
return mmgr_NULL;
}
if (entry->data == ptr)
entry->count += 1;
else if (entry->data == mmgr_NULL) {
entry->data = ptr;
entry->count = 1;
} else
return mmgr_NULL;
return ptr;
}
bool ia_css_refcount_decrement(int32_t id, hrt_vaddress ptr)
{
struct ia_css_refcount_entry *entry;
ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE,
"ia_css_refcount_decrement(%x) 0x%x\n", id, ptr);
if (ptr == mmgr_NULL)
return false;
entry = refcount_find_entry(ptr, false);
if (entry) {
if (entry->id != id) {
ia_css_debug_dtrace(IA_CSS_DEBUG_ERROR,
"ia_css_refcount_decrement(): Ref count IDS do not match!\n");
return false;
}
if (entry->count > 0) {
entry->count -= 1;
if (entry->count == 0) {
/* ia_css_debug_dtrace(IA_CSS_DBEUG_TRACE,
"ia_css_refcount_decrement: freeing\n");*/
mmgr_free(ptr);
entry->data = mmgr_NULL;
entry->id = 0;
}
return true;
}
}
/* SHOULD NOT HAPPEN: ptr not managed by refcount, or not
valid anymore */
if (entry)
IA_CSS_ERROR("id %x, ptr 0x%x entry %p entry->id %x entry->count %d\n",
id, ptr, entry, entry->id, entry->count);
else
IA_CSS_ERROR("entry NULL for ptr 0x%x\n", ptr);
/* assert(false); */
return false;
}
