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As part of RPCs processing, they need to be sorted reliably across all peers, so that unique IDs can be assigned to greatly optimize the network layer. The RPC configuration nodes are stored in dictionaries which, until recently, always casted StringName keys to String. Since method names (keys) in the RPC configuration were StringName, a side effect of the above change is that sorting the dictionary keys no longer sort them alphabetically by default (StringName are compared using their pointers). This commit changes the RPC processing logic to use sort_custom to provide a function that can handle the StringName comparison.
117 lines
4.8 KiB
C++
117 lines
4.8 KiB
C++
/**************************************************************************/
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/* scene_rpc_interface.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#ifndef SCENE_RPC_INTERFACE_H
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#define SCENE_RPC_INTERFACE_H
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#include "core/object/ref_counted.h"
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#include "scene/main/multiplayer_api.h"
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class SceneMultiplayer;
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class SceneCacheInterface;
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class SceneReplicationInterface;
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class Node;
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class SceneRPCInterface : public RefCounted {
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GDCLASS(SceneRPCInterface, RefCounted);
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private:
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struct RPCConfig {
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StringName name;
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MultiplayerAPI::RPCMode rpc_mode = MultiplayerAPI::RPC_MODE_DISABLED;
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bool call_local = false;
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MultiplayerPeer::TransferMode transfer_mode = MultiplayerPeer::TRANSFER_MODE_RELIABLE;
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int channel = 0;
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bool operator==(RPCConfig const &p_other) const {
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return name == p_other.name;
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}
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};
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struct RPCConfigCache {
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HashMap<uint16_t, RPCConfig> configs;
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HashMap<StringName, uint16_t> ids;
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};
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struct SortRPCConfig {
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StringName::AlphCompare compare;
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bool operator()(const RPCConfig &p_a, const RPCConfig &p_b) const {
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return compare(p_a.name, p_b.name);
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}
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};
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enum NetworkNodeIdCompression {
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NETWORK_NODE_ID_COMPRESSION_8 = 0,
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NETWORK_NODE_ID_COMPRESSION_16,
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NETWORK_NODE_ID_COMPRESSION_32,
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};
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enum NetworkNameIdCompression {
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NETWORK_NAME_ID_COMPRESSION_8 = 0,
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NETWORK_NAME_ID_COMPRESSION_16,
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};
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SceneMultiplayer *multiplayer = nullptr;
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SceneCacheInterface *multiplayer_cache = nullptr;
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SceneReplicationInterface *multiplayer_replicator = nullptr;
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Vector<uint8_t> packet_cache;
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HashMap<ObjectID, RPCConfigCache> rpc_cache;
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#ifdef DEBUG_ENABLED
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_FORCE_INLINE_ void _profile_node_data(const String &p_what, ObjectID p_id, int p_size);
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#endif
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protected:
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static bool _sort_rpc_names(const Variant &p_l, const Variant &p_r);
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void _process_rpc(Node *p_node, const uint16_t p_rpc_method_id, int p_from, const uint8_t *p_packet, int p_packet_len, int p_offset);
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void _send_rpc(Node *p_from, int p_to, uint16_t p_rpc_id, const RPCConfig &p_config, const StringName &p_name, const Variant **p_arg, int p_argcount);
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Node *_process_get_node(int p_from, const uint8_t *p_packet, uint32_t p_node_target, int p_packet_len);
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void _parse_rpc_config(const Variant &p_config, bool p_for_node, RPCConfigCache &r_cache);
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const RPCConfigCache &_get_node_config(const Node *p_node);
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public:
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Error rpcp(Object *p_obj, int p_peer_id, const StringName &p_method, const Variant **p_arg, int p_argcount);
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void process_rpc(int p_from, const uint8_t *p_packet, int p_packet_len);
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String get_rpc_md5(const Object *p_obj);
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SceneRPCInterface(SceneMultiplayer *p_multiplayer, SceneCacheInterface *p_cache, SceneReplicationInterface *p_replicator) {
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multiplayer = p_multiplayer;
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multiplayer_cache = p_cache;
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multiplayer_replicator = p_replicator;
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}
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};
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#endif // SCENE_RPC_INTERFACE_H
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