* Optimize packet construction functions
Some of the functions that construct packets in
connection.cpp are using a const reference to get the raw
packet data to package and others use a value passed
parameter to do that. The ones that use the value passed
parameter suffer from performance hit as the rather bulky
packet data gets a temporary copy when the parameter is
passed before it lands at its final destination inside the
newly constructed packet. The unnecessary temporary copy
hurts quite badly as the underlying class (SharedBuffer)
actually allocates the space for the data in the heap.
Fix the performance hit by converting all of these value
passed parameters to const references. I believe that this
is what the author of the relevant code actually intended
to do as there is a couple of packet construction helper
functions that already use a const reference to get the
raw data.
* Optimize packet sender thread class
Most of the data sending methods of the packet sender thread
class use a value passed parameter for the packet data to be
sent. This causes the rather bulky data to be allocated on
the heap and copied, slowing the packet sending down. Convert
these parameters to const references to avoid the performance
hit.
* Optimize packet receiver thread class
The packet receiver and processor thread class has many
methods (mostly packet handlers) that receive the packed data
by value. This causes a performance hit that is actually
worse than the one caused by the packet sender methods
because the packet is first handed to the processPacket
method which looks at the packet type stored in the header
and then delegates the actual handling to one of the
handlers. Both, processPacket and all the handlers get the
packet data by value, leading to at least two unnecessary
copies of the data (with malloc and all the slow bells and
whistles of bulky classes).
As there already is a few methods that use a const reference
parameter for the packet data, convert all this value passed
packets to const references.
The "what" parameter is being passed by value, most likely by
accident as the type is "const std::string". Convert it to a
reference by adding the missing "&".
* Drop the ID mapper, use a big u64 instead. This will permit to resync server ids properly with the manager code
* Modernize some code parts (std::unordered_map, auto)
* generate id on client part on U32_MAX + 1 ids, lower are for server ids
The reverted commit 968ce9af598024ec71e9ffb2d15c3997a13ad754
is suspected (through the use of bisection) of causing network slowdowns.
Revert for now as we are close to release.
Store the rotation in the node as a 4x4 transformation matrix internally (through IDummyTransformationSceneNode), which allows more manipulations without losing precision or having gimbal lock issues.
Network rotation is still transmitted as Eulers, though, not as matrix. But it will stay this way in 5.0.
* Fix various bugs (Anticheat, Lua helpers)
Anticheat: Use camera position instead of player position for shoot line calculations
Lua helpers: Increase 'i' to not overwrite earlier added table values
* Remove lag compensation
* * 1.5 for larger selection boxes
Previously, when the CSM restriction 'LOAD_CLIENT_MODS' was used a
client was still able to add CSM code to 'builtin' to bypass that
restriction, because 'builtin' is not yet verified.
Until server-sent CSM and verifying of 'builtin' are complete, make
'LOAD_CLIENT_MODS' disable the loading of builtin.
Clarify code comments and messages to distinguish between client-side
modding and client-side scripting. 'Scripting' includes 'builtin',
'modding' does not.
* Adds Lua methods 'set_rotation()' and 'get_rotation'. Also changed some method names to be more clear. Instead of an f32 being sent over network for yaw, now a v3f is sent for rotation on xyz axes. Perserved Lua method set_yaw/setyaw so that old mods still work, other wise to set yaw they would need to switch to set_rotation(0, yaw, 0).
Use the CSM death formspec when CSM is enabled and use the engine death formspec when CSM is disabled.
Move the CSM death formspec code to a dedicated file.
* Few code updates
* Do not show average RTT before timing out
* Fix unwanted integer division in RTTStatistics
* Fix float format, prettier jitter calculation
* Use +=, 0.1f -> 100.0f for stronger average updates
* Cleanup sound manager client
* Use some const refs
* Use auto on iterators
* Drop unused parameters
* Move sound_openal.* to client folder
* Move sound.cpp + OnDemandSoundFetcher to client/ folder + reorganize includes properly
This doesn't check the fields in anyway whatsoever so it should only be seen as a way to mitigate exploits, a last line of defense to make it harder to exploit bugs in mods, not as a reason to not do all the usually checks.
The CSM HUD PR caused some strange behavior including aborts due to parts of it using some slightly hacky code, the event refactor changing how events are processed and a minor oversight.
* Attempt to add registration confirmation
Using SRP auth mechanism, if server sent AUTH_MECHANISM_FIRST_SRP that means the player isn't exist.
Also tell player about the server and chosen username.
Local game has localhost as IP address of the server.
Add RenderingEngine::draw_menu_scene() to draw GUI and clouds background.
aborted -> connection_aborted
* Rewrite information message text
Client::promptConfirmRegister() -> Client::promptConfirmRegistration()
The `disconnected_*` boxes are the opposites of the `connect_*` ones,
i.e. when a node has no suitable neighbours on the respective side, the
according disconnected box is drawn.
* disconnected_top
* disconnected_bottom
* disconnected_front
* disconnected_left
* disconnected_back
* disconnected_right
* disconnected (when there is *no* neighbour)
* disconnected_sides (when there are *no* neighbours to the sides)
Remove player object property 'can zoom'.
Add player object property 'zoom fov'.
Remove clientside setting for 'zoom fov'.
Object property default is 15 degrees in creative mode, zoom disabled
in survival mode.
Needed due to zoom now loading and/or generating distant world
according to zoom FOV.
Update object properties serialisation version to 3.
In some cases NetworkPacket was created using default constructor and m_data is not properly sized.
This fixed out of bounds memory copy
Also use memcpy instead of std::vector affectation to enhance packet creation
* Add session_t typedef + remove unused functions
u16 peer_id is used everywhere, to be more consistent and permit some evolutions on this type in the future (i'm working on a PoC), uniformize u16 peer_id to SessionId peer_id
Implement network communication for channels
* Implement ModChannel manager server side to route incoming messages from clients to other clients
* Add signal handler switch on client & ModChannelMgr on client to handle channels
* Add Lua API bindings + client packet sending + unittests
* Implement server message sending
* Add callback from received message handler to Lua API using registration method
The 'glow' value is added to the ambient light value.
Negative 'glow' disables light's effect on object colour, for faking
self-lighting, UI-style entities, or programmatic colouring in mods.
* Implement minetest.register_on_userlimit_check
This new callback permits to bypass the max_users parameter with new mods condition, based on player name or IP
Only one mod needs to permit it.
Move core part for builtin privileges checks to builtin
* Fix HP transport + some double <-> float problems
TOCLIENT_HP transport u16 hp as a u8, use u16 HP, this prevent HP over 255 to overflow across network
* Fix more double/float problem in serverpackethandler & remove implicit struct type for TileAnimationParams
* Fix connection unittests container
* Refactor clientevent structure
* Move structure outside of client header
* Create client events on heap not stack, this remove the ClientEvent object copy
* Use clientEventHandler to route events
* Move Connection threads to dedicated files + various cleanups
* ConnectionReceiveThread::processPacket now uses function pointer table to route MT packet types
* Various code style fixes
* Code style with clang-format
* Various SharedBuffer copy removal
* SharedBuffer cannot be copied anymore using Buffer
* Fix many SharedBuffer copy (thanks to delete operator)
* Cleanup network headers
* Move peerhandler to a specific header to reduce compilation times
* Move socket.cpp/h to network folder
* More work
* Network code cleanups
* Move socket.{cpp,h} to network folder
* Move Address object to network/address.{cpp,h}
* Move network exceptions to network/networkexceptions.h
* Client: use unique_ptr for Connection
* Server/ClientIface: use shared_ptr for Connection
* Format fixes
* Remove socket.cpp socket.h from clang-format whitelist
* Also fix NetworkPacket code style & make it under clang-format
* Modernize source code: last par
* Use empty when needed
* Use emplace_back instead of push_back when needed
* For range-based loops
* Initializers fixes
* constructors, destructors default
* c++ C stl includes
* Code modernization: subfolders
Modernize various code on subfolders client, network, script, threading, unittests, util
* empty function
* default constructor/destructor
* for range-based loops
* use emplace_back instead of push_back
* C++ STL header style
* Make connection.cpp readable in a pointed place + typo
* ClientInterface: add a function to verify (correctly) if user limit was reached
CS_HelloSent is a better indicator of active slots than CS_Created, which are session objects created after init packet reception
Switch existing checks to ClientInterface::isUserLimitReached()
Use range-based for loop for getClientIds() used function too
This will fix#6254 (not the memory overhead if init is flooded)
* Use more for range based loops
* Simplify some tests
* Code style fixes
* connection.h: better PeerChange constructor instead of creating uninitalized object and then affect variables
* [CSM] Add flavour limits controlled by server
Server send flavour limits to client permitting to disable or limit some Lua calls
* Add limits for reading nodedefs and itemdefs
* flavour: Add lookup node limits
* Merge get_node_or_nil into get_node.
Sending fake node doesn't make sense in CSM, just return nil if node is not available for any reason
* Add node range customization when noderange flavour is enabled (default 8 nodes)
* Limit nodes range & disable chat message sending by default
* Bump protocol version
* New TOCLIENT_CHAT_MESSAGE packet
* Rename old packet to TOCLIENT_CHAT_MESSAGE_OLD for compat
* Handle TOCLIENT_CHAT_MESSAGE new structure client side
* Client chat queue should use a specific object
* SendChatMessage: use the right packet depending on protocol version (not complete yet)
* Add chatmessage(type) objects and handle them client side (partially)
* Use ChatMessage instead of std::wstring server side
* Update with timestamp support
* C++11 patchset 10: continue cleanup on constructors
* Drop obsolete bool MainMenuData::enable_public (setting is called with cURL in server loop)
* More classes cleanup
* More classes cleanup + change NULL tests to boolean tests
thread_local permits to limit variable lifetime to thread duration. Use it on each setting place which uses static to cache variable result only for thread lifetime. This permits to keep the same performance level & reconfigure server from MT gui in those various variables places.
Add thread_local to undersampling calculation too.
* Have the server send the player list to the client
Currently the client generates the player list based on the Client active object list, the issue with this is that we can't be sure all player active objects will be sent to the client, so this could result in players showing up when someone run `/status` but auto complete not working with their nick and CSM not being aware of the player
Default true.
Add 'm_clouds_enabled' bool to sky.h, set from new bool in 'set sky' API.
Make 'getCloudsVisible()' depend on 'm_clouds_enabled' instead of
'm_visible' (whether normal sky is visible).
Client: Don't send `TOSERVER_RECEIVED_MEDIA` since it's not used anymore
Server: Handle `TOSERVER_RECEIVED_MEDIA` using `Server::handleCommand_Deprecated`
- If the hand can dig a node the item wielded can't, allow to dig it anyway.
- Fix the API callbacks from setting the hand instead of the wielded item.
* rename GameScripting to ServerScripting
* Make getBuiltinLuaPath static serverside
* Add on_shutdown callback
* Add on_receiving_chat_message & on_sending_chat_message callbacks
* ScriptApiBase: use IGameDef instead of Server
This permits to share common attribute between client & server
* Enable mod security in client side modding without conditions
This re-applies 2 commits that were reverted.
Visual_scale was applied twice to plantlike by accident sometime between
2011 and 2013, squaring the requested scale value. Visual_scale is
correctly applied once in it's other uses in signlike and torchlike.
Two lines of code are removed, they also had no effect for the vast
majority of nodes with the default visual_scale of 1.0.
The texture continues to have it's base at ground level.
Send sqrt(visual_scale) to old clients.
Keep compatibility with protocol < 30 clients now that visual_scale
is no longer applied twice to plantlike drawtype and mods are being
updated to a new value.
