/***************************************************

TCP Bound/Connected Socket Tree Functions

***************************************************/

CTCPTreeNode *TCPTreeNodeInit()
{ // init new empty tree/node. Init socket queue head links.
        CTCPTreeNode *tree_node = CAlloc(sizeof(CTCPTreeNode));

        tree_node->queue = CAlloc(sizeof(CTCPTreeQueue)); // CQueue vs CTCPTreeQueue ?...
        QueueInit(tree_node->queue);

        return tree_node;
}

U0 TCPTreeNodeAdd(CTCPTreeNode *node, CTCPTreeNode *tree)
{ // using temp and last allows avoiding recursion and non-growing stack issues.
        BSTAdd(node, tree);
}

CTCPTreeNode *TCPTreeNodeParamAdd(I64 port, CTCPTreeNode *tree)
{ // add a node using params, return pointer to the node
        CTCPTreeNode *result = TCPTreeNodeInit;

        result->value = port;

        TCPTreeNodeAdd(result, tree);

        return result;
}

CTCPTreeNode *TCPTreeNodeParamInit(I64 port)
{
        CTCPTreeNode *result = TCPTreeNodeInit;

        result->value = port;

        return result;
}

CTCPTreeNode *TCPTreeNodeFind(I64 port, CTCPTreeNode *tree)
{
        return BSTFind(port, tree);
}

CTCPTreeNode *TCPTreeNodePop(I64 port, CTCPTreeNode *tree)
{ // Pops whole sub-tree, original tree loses whole branch.
        return BSTPop(port, tree);
}

CTCPTreeNode *TCPTreeNodeSinglePop(I64 port, CTCPTreeNode *tree)
{       // Pop a tree off, then add back in its sub-trees to main tree.
        // Original node sub-tree links are cleared.

        return BSTSinglePop(port, tree);
}

U0 TCPTreeNodeQueueAdd(CTCPSocket *socket, CTCPTreeNode *node)
{
        CTCPTreeQueue *new_entry = CAlloc(sizeof(CTCPTreeQueue));

        new_entry->socket = socket;

        QueueInsert(new_entry, node->queue->last);
}

CTCPTreeQueue *TCPTreeNodeQueueSocketFind(CTCPSocket *socket, CTCPTreeNode *node)
{
        CTCPTreeQueue *temp_queue;

        temp_queue = node->queue->next;
        while (temp_queue != node->queue)
        {
                if (temp_queue->socket == socket)
                        return temp_queue;
                temp_queue = temp_queue->next;
        }

        return NULL;
}

CTCPTreeQueue *TCPTreeNodeQueueSocketSinglePop(CTCPSocket *socket, CTCPTreeNode *node)
{ // search by socket, pop a single TCPTreeQueue off the node, return popped queue.
        CTCPTreeQueue *temp_queue = TCPTreeNodeQueueSocketFind(socket, node);

        if (temp_queue)
        {
                QueueRemove(temp_queue);

        }

        return temp_queue; // if not found, NULL.
}

CTCPTreeQueue *TCPTreeNodeQueueIPV4Find(U32 address, CTCPTreeNode *node, Bool specific=FALSE)
{       // address should be pulled from an instance of CIPV4Address (TODO... double check what bit order we're in ?)
        // use TRUE or FALSE in specific arg to dictate how to handle INADDR_ANY.

        CTCPTreeQueue           *temp_queue = node->queue->next;
        CSocketAddressIPV4      *temp_ip;

        while (temp_queue != node->queue)
        {
                if (temp_queue->socket->destination_address.family == AF_INET)
                {
                        temp_ip = &temp_queue->socket->destination_address;
                        NetLog("TCPTreeNodeQueueIPV4Find: Comparing:     addr, nodequeue addr: %08X, %08X",
                                        address, temp_ip->address.address);

                        if (temp_ip->address.address == address)
                        {
                                NetLog("TCPTreeNodeQueueIPV4Find: Address match: addr, nodequeue addr: %08X, %08X ",
                                                address, temp_ip->address.address);

                                return temp_queue;
                        }
                }
                else
                        NetErr("TCPTreeNodeQueueIPV4Find: Skipped iteration of a non AF_INET family: %0X",
                                        temp_queue->socket->destination_address.family);

                temp_queue = temp_queue->next;
        }

        if (!specific)
        {
                temp_queue = node->queue->next;
                NetDebug("TCPTreeNodeQueueIPV4Find: Exact match not found, looking for an INADDR_ANY address.");

                while (temp_queue != node->queue)
                {
                        if (temp_queue->socket->destination_address.family == AF_INET)
                        {
                                temp_ip = &temp_queue->socket->destination_address;
                                NetLog("TCPTreeNodeQueueIPV4Find: Comparing:     addr, nodequeue addr: %08X, %08X",
                                                address, temp_ip->address.address);

                                if (temp_ip->address.address == INADDR_ANY)
                                {
                                        NetLog("TCPTreeNodeQueueIPV4Find: Address match: addr, nodequeue addr: %08X, %08X ",
                                                        address, temp_ip->address.address);

                                        return temp_queue;
                                }
                        }
                        else
                                NetErr("TCPTreeNodeQueueIPV4Find: Skipped iteration of a non AF_INET family: %0X",
                                                temp_queue->socket->destination_address.family);

                        temp_queue = temp_queue->next;
                }
        }


        return NULL;
}