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Diffstat (limited to 'scene/multiplayer/scene_cache_interface.cpp')
-rw-r--r-- | scene/multiplayer/scene_cache_interface.cpp | 263 |
1 files changed, 0 insertions, 263 deletions
diff --git a/scene/multiplayer/scene_cache_interface.cpp b/scene/multiplayer/scene_cache_interface.cpp deleted file mode 100644 index 7c271341db..0000000000 --- a/scene/multiplayer/scene_cache_interface.cpp +++ /dev/null @@ -1,263 +0,0 @@ -/*************************************************************************/ -/* scene_cache_interface.cpp */ -/*************************************************************************/ -/* This file is part of: */ -/* GODOT ENGINE */ -/* https://godotengine.org */ -/*************************************************************************/ -/* Copyright (c) 2007-2022 Juan Linietsky, Ariel Manzur. */ -/* Copyright (c) 2014-2022 Godot Engine contributors (cf. AUTHORS.md). */ -/* */ -/* Permission is hereby granted, free of charge, to any person obtaining */ -/* a copy of this software and associated documentation files (the */ -/* "Software"), to deal in the Software without restriction, including */ -/* without limitation the rights to use, copy, modify, merge, publish, */ -/* distribute, sublicense, and/or sell copies of the Software, and to */ -/* permit persons to whom the Software is furnished to do so, subject to */ -/* the following conditions: */ -/* */ -/* The above copyright notice and this permission notice shall be */ -/* included in all copies or substantial portions of the Software. */ -/* */ -/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ -/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ -/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ -/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ -/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ -/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ -/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -/*************************************************************************/ - -#include "scene_cache_interface.h" - -#include "core/io/marshalls.h" -#include "scene/main/node.h" -#include "scene/main/window.h" - -MultiplayerCacheInterface *SceneCacheInterface::_create(MultiplayerAPI *p_multiplayer) { - return memnew(SceneCacheInterface(p_multiplayer)); -} - -void SceneCacheInterface::make_default() { - MultiplayerAPI::create_default_cache_interface = _create; -} - -void SceneCacheInterface::on_peer_change(int p_id, bool p_connected) { - if (p_connected) { - path_get_cache.insert(p_id, PathGetCache()); - } else { - // Cleanup get cache. - path_get_cache.erase(p_id); - // Cleanup sent cache. - // Some refactoring is needed to make this faster and do paths GC. - for (const KeyValue<NodePath, PathSentCache> &E : path_send_cache) { - PathSentCache *psc = path_send_cache.getptr(E.key); - psc->confirmed_peers.erase(p_id); - } - } -} - -void SceneCacheInterface::process_simplify_path(int p_from, const uint8_t *p_packet, int p_packet_len) { - Node *root_node = SceneTree::get_singleton()->get_root()->get_node(multiplayer->get_root_path()); - ERR_FAIL_COND(!root_node); - ERR_FAIL_COND_MSG(p_packet_len < 38, "Invalid packet received. Size too small."); - int ofs = 1; - - String methods_md5; - methods_md5.parse_utf8((const char *)(p_packet + ofs), 32); - ofs += 33; - - int id = decode_uint32(&p_packet[ofs]); - ofs += 4; - - String paths; - paths.parse_utf8((const char *)(p_packet + ofs), p_packet_len - ofs); - - NodePath path = paths; - - if (!path_get_cache.has(p_from)) { - path_get_cache[p_from] = PathGetCache(); - } - - Node *node = root_node->get_node(path); - ERR_FAIL_COND(node == nullptr); - const bool valid_rpc_checksum = multiplayer->get_rpc_md5(node) == methods_md5; - if (valid_rpc_checksum == false) { - ERR_PRINT("The rpc node checksum failed. Make sure to have the same methods on both nodes. Node path: " + path); - } - - PathGetCache::NodeInfo ni; - ni.path = path; - - path_get_cache[p_from].nodes[id] = ni; - - // Encode path to send ack. - CharString pname = String(path).utf8(); - int len = encode_cstring(pname.get_data(), nullptr); - - Vector<uint8_t> packet; - - packet.resize(1 + 1 + len); - packet.write[0] = MultiplayerAPI::NETWORK_COMMAND_CONFIRM_PATH; - packet.write[1] = valid_rpc_checksum; - encode_cstring(pname.get_data(), &packet.write[2]); - - Ref<MultiplayerPeer> multiplayer_peer = multiplayer->get_multiplayer_peer(); - ERR_FAIL_COND(multiplayer_peer.is_null()); - -#ifdef DEBUG_ENABLED - multiplayer->profile_bandwidth("out", packet.size()); -#endif - - multiplayer_peer->set_transfer_channel(0); - multiplayer_peer->set_transfer_mode(Multiplayer::TRANSFER_MODE_RELIABLE); - multiplayer_peer->set_target_peer(p_from); - multiplayer_peer->put_packet(packet.ptr(), packet.size()); -} - -void SceneCacheInterface::process_confirm_path(int p_from, const uint8_t *p_packet, int p_packet_len) { - ERR_FAIL_COND_MSG(p_packet_len < 3, "Invalid packet received. Size too small."); - - const bool valid_rpc_checksum = p_packet[1]; - - String paths; - paths.parse_utf8((const char *)&p_packet[2], p_packet_len - 2); - - NodePath path = paths; - - if (valid_rpc_checksum == false) { - ERR_PRINT("The rpc node checksum failed. Make sure to have the same methods on both nodes. Node path: " + path); - } - - PathSentCache *psc = path_send_cache.getptr(path); - ERR_FAIL_COND_MSG(!psc, "Invalid packet received. Tries to confirm a path which was not found in cache."); - - HashMap<int, bool>::Iterator E = psc->confirmed_peers.find(p_from); - ERR_FAIL_COND_MSG(!E, "Invalid packet received. Source peer was not found in cache for the given path."); - E->value = true; -} - -Error SceneCacheInterface::_send_confirm_path(Node *p_node, NodePath p_path, PathSentCache *psc, const List<int> &p_peers) { - // Encode function name. - const CharString path = String(p_path).utf8(); - const int path_len = encode_cstring(path.get_data(), nullptr); - - // Extract MD5 from rpc methods list. - const String methods_md5 = multiplayer->get_rpc_md5(p_node); - const int methods_md5_len = 33; // 32 + 1 for the `0` that is added by the encoder. - - Vector<uint8_t> packet; - packet.resize(1 + 4 + path_len + methods_md5_len); - int ofs = 0; - - packet.write[ofs] = MultiplayerAPI::NETWORK_COMMAND_SIMPLIFY_PATH; - ofs += 1; - - ofs += encode_cstring(methods_md5.utf8().get_data(), &packet.write[ofs]); - - ofs += encode_uint32(psc->id, &packet.write[ofs]); - - ofs += encode_cstring(path.get_data(), &packet.write[ofs]); - - Ref<MultiplayerPeer> multiplayer_peer = multiplayer->get_multiplayer_peer(); - ERR_FAIL_COND_V(multiplayer_peer.is_null(), ERR_BUG); - -#ifdef DEBUG_ENABLED - multiplayer->profile_bandwidth("out", packet.size() * p_peers.size()); -#endif - - Error err = OK; - for (int peer_id : p_peers) { - multiplayer_peer->set_target_peer(peer_id); - multiplayer_peer->set_transfer_channel(0); - multiplayer_peer->set_transfer_mode(Multiplayer::TRANSFER_MODE_RELIABLE); - err = multiplayer_peer->put_packet(packet.ptr(), packet.size()); - ERR_FAIL_COND_V(err != OK, err); - // Insert into confirmed, but as false since it was not confirmed. - psc->confirmed_peers.insert(peer_id, false); - } - return err; -} - -bool SceneCacheInterface::is_cache_confirmed(NodePath p_path, int p_peer) { - const PathSentCache *psc = path_send_cache.getptr(p_path); - ERR_FAIL_COND_V(!psc, false); - HashMap<int, bool>::ConstIterator F = psc->confirmed_peers.find(p_peer); - ERR_FAIL_COND_V(!F, false); // Should never happen. - return F->value; -} - -bool SceneCacheInterface::send_object_cache(Object *p_obj, NodePath p_path, int p_peer_id, int &r_id) { - Node *node = Object::cast_to<Node>(p_obj); - ERR_FAIL_COND_V(!node, false); - // See if the path is cached. - PathSentCache *psc = path_send_cache.getptr(p_path); - if (!psc) { - // Path is not cached, create. - path_send_cache[p_path] = PathSentCache(); - psc = path_send_cache.getptr(p_path); - psc->id = last_send_cache_id++; - } - r_id = psc->id; - - bool has_all_peers = true; - List<int> peers_to_add; // If one is missing, take note to add it. - - if (p_peer_id > 0) { - // Fast single peer check. - HashMap<int, bool>::Iterator F = psc->confirmed_peers.find(p_peer_id); - if (!F) { - peers_to_add.push_back(p_peer_id); // Need to also be notified. - has_all_peers = false; - } else if (!F->value) { - has_all_peers = false; - } - } else { - // Long and painful. - for (const int &E : multiplayer->get_connected_peers()) { - if (p_peer_id < 0 && E == -p_peer_id) { - continue; // Continue, excluded. - } - if (p_peer_id > 0 && E != p_peer_id) { - continue; // Continue, not for this peer. - } - - HashMap<int, bool>::Iterator F = psc->confirmed_peers.find(E); - if (!F) { - peers_to_add.push_back(E); // Need to also be notified. - has_all_peers = false; - } else if (!F->value) { - has_all_peers = false; - } - } - } - - if (peers_to_add.size()) { - _send_confirm_path(node, p_path, psc, peers_to_add); - } - - return has_all_peers; -} - -Object *SceneCacheInterface::get_cached_object(int p_from, uint32_t p_cache_id) { - Node *root_node = SceneTree::get_singleton()->get_root()->get_node(multiplayer->get_root_path()); - ERR_FAIL_COND_V(!root_node, nullptr); - HashMap<int, PathGetCache>::Iterator E = path_get_cache.find(p_from); - ERR_FAIL_COND_V_MSG(!E, nullptr, vformat("No cache found for peer %d.", p_from)); - - HashMap<int, PathGetCache::NodeInfo>::Iterator F = E->value.nodes.find(p_cache_id); - ERR_FAIL_COND_V_MSG(!F, nullptr, vformat("ID %d not found in cache of peer %d.", p_cache_id, p_from)); - - PathGetCache::NodeInfo *ni = &F->value; - Node *node = root_node->get_node(ni->path); - if (!node) { - ERR_PRINT("Failed to get cached path: " + String(ni->path) + "."); - } - return node; -} - -void SceneCacheInterface::clear() { - path_get_cache.clear(); - path_send_cache.clear(); - last_send_cache_id = 1; -} |