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Diffstat (limited to 'scene/multiplayer/scene_cache_interface.cpp')
-rw-r--r--scene/multiplayer/scene_cache_interface.cpp274
1 files changed, 0 insertions, 274 deletions
diff --git a/scene/multiplayer/scene_cache_interface.cpp b/scene/multiplayer/scene_cache_interface.cpp
deleted file mode 100644
index 79a7dc2d5a..0000000000
--- a/scene/multiplayer/scene_cache_interface.cpp
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@@ -1,274 +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;
-}
-
-int SceneCacheInterface::make_object_cache(Object *p_obj) {
- Node *node = Object::cast_to<Node>(p_obj);
- ERR_FAIL_COND_V(!node, -1);
- NodePath for_path = multiplayer->get_root_path().rel_path_to(node->get_path());
- // See if the path is cached.
- PathSentCache *psc = path_send_cache.getptr(for_path);
- if (!psc) {
- // Path is not cached, create.
- path_send_cache[for_path] = PathSentCache();
- psc = path_send_cache.getptr(for_path);
- psc->id = last_send_cache_id++;
- }
- return psc->id;
-}
-
-bool SceneCacheInterface::send_object_cache(Object *p_obj, int p_peer_id, int &r_id) {
- Node *node = Object::cast_to<Node>(p_obj);
- ERR_FAIL_COND_V(!node, false);
-
- r_id = make_object_cache(p_obj);
- ERR_FAIL_COND_V(r_id < 0, false);
- NodePath for_path = multiplayer->get_root_path().rel_path_to(node->get_path());
- PathSentCache *psc = path_send_cache.getptr(for_path);
-
- 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, for_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;
-}
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