bool
NativeSetMap::Entry::Match(const PLDHashEntryHdr* entry, const void* key)
{
auto Key = static_cast<const XPCNativeSetKey*>(key);
XPCNativeSet* SetInTable = ((Entry*)entry)->key_value;
XPCNativeSet* Set = Key->GetBaseSet();
XPCNativeInterface* Addition = Key->GetAddition();
if (!Set) {
// This is a special case to deal with the invariant that says:
// "All sets have exactly one nsISupports interface and it comes first."
// See XPCNativeSet::NewInstance for details.
//
// Though we might have a key that represents only one interface, we
// know that if that one interface were contructed into a set then
// it would end up really being a set with two interfaces (except for
// the case where the one interface happened to be nsISupports).
return (SetInTable->GetInterfaceCount() == 1 &&
SetInTable->GetInterfaceAt(0) == Addition) ||
(SetInTable->GetInterfaceCount() == 2 &&
SetInTable->GetInterfaceAt(1) == Addition);
}
if (!Addition && Set == SetInTable)
return true;
uint16_t count = Set->GetInterfaceCount();
if (count + (Addition ? 1 : 0) != SetInTable->GetInterfaceCount())
return false;
XPCNativeInterface** CurrentInTable = SetInTable->GetInterfaceArray();
XPCNativeInterface** Current = Set->GetInterfaceArray();
for (uint16_t i = 0; i < count; i++) {
if (*(Current++) != *(CurrentInTable++))
return false;
}
return !Addition || Addition == *(CurrentInTable++);
}
NativeSetSweeper(JSDHashTable *table, JSDHashEntryHdr *hdr,
uint32 number, void *arg)
{
XPCNativeSet* set = ((NativeSetMap::Entry*)hdr)->key_value;
if(set->IsMarked())
{
set->Unmark();
return JS_DHASH_NEXT;
}
#ifdef XPC_REPORT_NATIVE_INTERFACE_AND_SET_FLUSHING
printf("- Destroying XPCNativeSet for:\n");
PRUint16 count = set->GetInterfaceCount();
for(PRUint16 k = 0; k < count; k++)
{
XPCNativeInterface* iface = set->GetInterfaceAt(k);
printf(" %s\n",JS_GetStringBytes(JSVAL_TO_STRING(iface->GetName())));
}
#endif
XPCNativeSet::DestroyInstance(set);
return JS_DHASH_REMOVE;
}
