diff options
-rw-r--r-- | core/io/multiplayer_peer.cpp | 24 | ||||
-rw-r--r-- | core/io/multiplayer_peer.h | 1 | ||||
-rw-r--r-- | doc/classes/MultiplayerPeer.xml | 7 | ||||
-rw-r--r-- | modules/enet/enet_multiplayer_peer.cpp | 23 | ||||
-rw-r--r-- | modules/enet/enet_multiplayer_peer.h | 1 | ||||
-rw-r--r-- | modules/websocket/websocket_multiplayer_peer.cpp | 20 | ||||
-rw-r--r-- | modules/websocket/websocket_multiplayer_peer.h | 1 | ||||
-rw-r--r-- | modules/websocket/wsl_server.cpp | 2 |
8 files changed, 34 insertions, 45 deletions
diff --git a/core/io/multiplayer_peer.cpp b/core/io/multiplayer_peer.cpp index 8126b4cea3..8b3b1eef8e 100644 --- a/core/io/multiplayer_peer.cpp +++ b/core/io/multiplayer_peer.cpp @@ -30,6 +30,29 @@ #include "multiplayer_peer.h" +#include "core/os/os.h" + +uint32_t MultiplayerPeer::generate_unique_id() const { + uint32_t hash = 0; + + while (hash == 0 || hash == 1) { + hash = hash_djb2_one_32( + (uint32_t)OS::get_singleton()->get_ticks_usec()); + hash = hash_djb2_one_32( + (uint32_t)OS::get_singleton()->get_unix_time(), hash); + hash = hash_djb2_one_32( + (uint32_t)OS::get_singleton()->get_user_data_dir().hash64(), hash); + hash = hash_djb2_one_32( + (uint32_t)((uint64_t)this), hash); // Rely on ASLR heap + hash = hash_djb2_one_32( + (uint32_t)((uint64_t)&hash), hash); // Rely on ASLR stack + + hash = hash & 0x7FFFFFFF; // Make it compatible with unsigned, since negative ID is used for exclusion + } + + return hash; +} + void MultiplayerPeer::_bind_methods() { ClassDB::bind_method(D_METHOD("set_transfer_mode", "mode"), &MultiplayerPeer::set_transfer_mode); ClassDB::bind_method(D_METHOD("get_transfer_mode"), &MultiplayerPeer::get_transfer_mode); @@ -41,6 +64,7 @@ void MultiplayerPeer::_bind_methods() { ClassDB::bind_method(D_METHOD("get_connection_status"), &MultiplayerPeer::get_connection_status); ClassDB::bind_method(D_METHOD("get_unique_id"), &MultiplayerPeer::get_unique_id); + ClassDB::bind_method(D_METHOD("generate_unique_id"), &MultiplayerPeer::generate_unique_id); ClassDB::bind_method(D_METHOD("set_refuse_new_connections", "enable"), &MultiplayerPeer::set_refuse_new_connections); ClassDB::bind_method(D_METHOD("is_refusing_new_connections"), &MultiplayerPeer::is_refusing_new_connections); diff --git a/core/io/multiplayer_peer.h b/core/io/multiplayer_peer.h index 432f47280f..91a3ad7954 100644 --- a/core/io/multiplayer_peer.h +++ b/core/io/multiplayer_peer.h @@ -72,6 +72,7 @@ public: virtual bool is_refusing_new_connections() const = 0; virtual ConnectionStatus get_connection_status() const = 0; + uint32_t generate_unique_id() const; MultiplayerPeer() {} }; diff --git a/doc/classes/MultiplayerPeer.xml b/doc/classes/MultiplayerPeer.xml index 713cd64b82..fa8f0e2de9 100644 --- a/doc/classes/MultiplayerPeer.xml +++ b/doc/classes/MultiplayerPeer.xml @@ -12,6 +12,13 @@ <link title="WebRTC Signaling Demo">https://godotengine.org/asset-library/asset/537</link> </tutorials> <methods> + <method name="generate_unique_id" qualifiers="const"> + <return type="int"> + </return> + <description> + Returns a randomly generated integer that can be used as a network unique ID. + </description> + </method> <method name="get_connection_status" qualifiers="const"> <return type="int" enum="MultiplayerPeer.ConnectionStatus"> </return> diff --git a/modules/enet/enet_multiplayer_peer.cpp b/modules/enet/enet_multiplayer_peer.cpp index b4ca93f4d9..14f9b3b1b9 100644 --- a/modules/enet/enet_multiplayer_peer.cpp +++ b/modules/enet/enet_multiplayer_peer.cpp @@ -179,7 +179,7 @@ Error ENetMultiplayerPeer::create_client(const String &p_address, int p_port, in #endif address.port = p_port; - unique_id = _gen_unique_id(); + unique_id = generate_unique_id(); // Initiate connection, allocating enough channels ENetPeer *peer = enet_host_connect(host, &address, channel_count, unique_id); @@ -608,27 +608,6 @@ MultiplayerPeer::ConnectionStatus ENetMultiplayerPeer::get_connection_status() c return connection_status; } -uint32_t ENetMultiplayerPeer::_gen_unique_id() const { - uint32_t hash = 0; - - while (hash == 0 || hash == 1) { - hash = hash_djb2_one_32( - (uint32_t)OS::get_singleton()->get_ticks_usec()); - hash = hash_djb2_one_32( - (uint32_t)OS::get_singleton()->get_unix_time(), hash); - hash = hash_djb2_one_32( - (uint32_t)OS::get_singleton()->get_user_data_dir().hash64(), hash); - hash = hash_djb2_one_32( - (uint32_t)((uint64_t)this), hash); // Rely on ASLR heap - hash = hash_djb2_one_32( - (uint32_t)((uint64_t)&hash), hash); // Rely on ASLR stack - - hash = hash & 0x7FFFFFFF; // Make it compatible with unsigned, since negative ID is used for exclusion - } - - return hash; -} - int ENetMultiplayerPeer::get_unique_id() const { ERR_FAIL_COND_V_MSG(!active, 0, "The multiplayer instance isn't currently active."); return unique_id; diff --git a/modules/enet/enet_multiplayer_peer.h b/modules/enet/enet_multiplayer_peer.h index 63f2ec5870..db80953414 100644 --- a/modules/enet/enet_multiplayer_peer.h +++ b/modules/enet/enet_multiplayer_peer.h @@ -96,7 +96,6 @@ private: Packet current_packet; - uint32_t _gen_unique_id() const; void _pop_current_packet(); Vector<uint8_t> src_compressor_mem; diff --git a/modules/websocket/websocket_multiplayer_peer.cpp b/modules/websocket/websocket_multiplayer_peer.cpp index 589bb8931a..52d9a602a1 100644 --- a/modules/websocket/websocket_multiplayer_peer.cpp +++ b/modules/websocket/websocket_multiplayer_peer.cpp @@ -39,26 +39,6 @@ WebSocketMultiplayerPeer::~WebSocketMultiplayerPeer() { _clear(); } -int WebSocketMultiplayerPeer::_gen_unique_id() const { - uint32_t hash = 0; - - while (hash == 0 || hash == 1) { - hash = hash_djb2_one_32( - (uint32_t)OS::get_singleton()->get_ticks_usec()); - hash = hash_djb2_one_32( - (uint32_t)OS::get_singleton()->get_unix_time(), hash); - hash = hash_djb2_one_32( - (uint32_t)OS::get_singleton()->get_data_path().hash64(), hash); - hash = hash_djb2_one_32( - (uint32_t)((uint64_t)this), hash); //rely on aslr heap - hash = hash_djb2_one_32( - (uint32_t)((uint64_t)&hash), hash); //rely on aslr stack - hash = hash & 0x7FFFFFFF; // make it compatible with unsigned, since negative id is used for exclusion - } - - return hash; -} - void WebSocketMultiplayerPeer::_clear() { _peer_map.clear(); if (_current_packet.data != nullptr) { diff --git a/modules/websocket/websocket_multiplayer_peer.h b/modules/websocket/websocket_multiplayer_peer.h index e3ccd1a795..4e80f876d6 100644 --- a/modules/websocket/websocket_multiplayer_peer.h +++ b/modules/websocket/websocket_multiplayer_peer.h @@ -75,7 +75,6 @@ protected: void _send_add(int32_t p_peer_id); void _send_sys(Ref<WebSocketPeer> p_peer, uint8_t p_type, int32_t p_peer_id); void _send_del(int32_t p_peer_id); - int _gen_unique_id() const; public: /* MultiplayerPeer */ diff --git a/modules/websocket/wsl_server.cpp b/modules/websocket/wsl_server.cpp index c6eb3d44b4..7402bbb46e 100644 --- a/modules/websocket/wsl_server.cpp +++ b/modules/websocket/wsl_server.cpp @@ -207,7 +207,7 @@ void WSLServer::poll() { continue; } // Creating new peer - int32_t id = _gen_unique_id(); + int32_t id = generate_unique_id(); WSLPeer::PeerData *data = memnew(struct WSLPeer::PeerData); data->obj = this; |