diff options
Diffstat (limited to '')
| -rw-r--r-- | src/ClientHandle.cpp | 1193 |
1 files changed, 460 insertions, 733 deletions
diff --git a/src/ClientHandle.cpp b/src/ClientHandle.cpp index 7dbf5a0a4..8ae81f645 100644 --- a/src/ClientHandle.cpp +++ b/src/ClientHandle.cpp @@ -1,5 +1,6 @@ #include "Globals.h" // NOTE: MSVC stupidness requires this to be the same across all modules +#include "Chunk.h" #include "ClientHandle.h" #include "Server.h" #include "World.h" @@ -65,11 +66,8 @@ cClientHandle::cClientHandle(const AString & a_IPString, int a_ViewDistance) : m_CurrentViewDistance(a_ViewDistance), m_RequestedViewDistance(a_ViewDistance), m_IPString(a_IPString), - m_Player(nullptr), - m_CachedSentChunk(0, 0), - m_HasSentDC(false), - m_LastStreamedChunkX(0x7fffffff), // bogus chunk coords to force streaming upon login - m_LastStreamedChunkZ(0x7fffffff), + m_Protocol(this), + m_Player(nullptr), // In order to catch when client leaves before authentication m_TicksSinceLastPacket(0), m_Ping(1000), m_PingID(1), @@ -82,18 +80,15 @@ cClientHandle::cClientHandle(const AString & a_IPString, int a_ViewDistance) : m_LastDigBlockX(0), m_LastDigBlockY(256), // Invalid Y, so that the coords don't get picked up m_LastDigBlockZ(0), - m_State(csConnected), - m_ShouldCheckDownloaded(false), + m_State(eState::csConnected), + m_ShouldRefreshSentChunks(true), m_NumExplosionsThisTick(0), m_NumBlockChangeInteractionsThisTick(0), m_UniqueID(0), - m_HasSentPlayerChunk(false), m_Locale("en_GB"), m_LastPlacedSign(0, -1, 0), m_ProtocolVersion(0) { - m_Protocol = new cProtocolRecognizer(this); - s_ClientCount++; // Not protected by CS because clients are always constructed from the same thread m_UniqueID = s_ClientCount; m_PingStartTime = std::chrono::steady_clock::now(); @@ -107,43 +102,28 @@ cClientHandle::cClientHandle(const AString & a_IPString, int a_ViewDistance) : cClientHandle::~cClientHandle() { - ASSERT(m_State == csDestroyed); // Has Destroy() been called? - - LOGD("Deleting client \"%s\" at %p", GetUsername().c_str(), static_cast<void *>(this)); - - { - cCSLock Lock(m_CSChunkLists); - m_LoadedChunks.clear(); - m_ChunksToSend.clear(); - } + ASSERT(m_State == eState::csDestroyed); // Has Destroy() been called? if (m_Player != nullptr) { cWorld * World = m_Player->GetWorld(); - if (World != nullptr) - { - RemoveFromAllChunks(); - m_Player->GetWorld()->RemoveClientFromChunkSender(this); - if (!m_Username.empty()) + + // Upon clienthandle destruction, the world pointer of a valid player SHALL NOT be null. + // The only time where it can be null is after player construction but before cEntity::Initialize is called in the queued task in Authenticate. + // During this time, it is guaranteed that the clienthandle is not deleted. + ASSERT(World != nullptr); + + World->QueueTask( + [this](cWorld & a_World) { - // Send the Offline PlayerList packet: - World->BroadcastPlayerListRemovePlayer(*m_Player, this); + a_World.RemovePlayer(m_Player); + a_World.BroadcastPlayerListRemovePlayer(*m_Player); + m_Player->Destroy(); } - m_Player->DestroyNoScheduling(true); - } - delete m_Player; - m_Player = nullptr; - } - - if (!m_HasSentDC) - { - SendDisconnect("Server shut down? Kthnxbai"); + ); } - delete m_Protocol; - m_Protocol = nullptr; - - LOGD("ClientHandle at %p deleted", static_cast<void *>(this)); + LOGD("Deletied client \"%s\" at %p", GetUsername().c_str(), static_cast<void *>(this)); } @@ -152,35 +132,47 @@ cClientHandle::~cClientHandle() void cClientHandle::Destroy(void) { + ASSERT(cRoot::Get()->GetServer()->IsInTickThread()); + if (!SetState(eState::csDestroying)) { - cCSLock Lock(m_CSOutgoingData); - m_Link.reset(); + // Already destroyed. + return; } + { - cCSLock Lock(m_CSDestroyingState); - if (m_State >= csDestroying) - { - // Already called - return; - } - m_State = csDestroying; + cCSLock Lock(m_CSLink); + m_Link.reset(); } + RemoveFromWorld(); + LOGD("%s: client %p, \"%s\"", __FUNCTION__, static_cast<void *>(this), m_Username.c_str()); + SetState(eState::csDestroyed); +} - if (m_Player != nullptr) + + + + +bool cClientHandle::SetState(eState a_State) +{ + // Obtain state at a point in time to compare to a_State + auto ExpectedState = m_State.load(); + + while ( + // Ensure that an exchange will be performed validly + (ExpectedState < a_State) && + + // Ensure that the current state matches what we have just verified + // If so, set the desired state + // Else, update ExpectedState to be the current value in preparation for another check and loop + !m_State.compare_exchange_weak(ExpectedState, a_State) + ) { - cWorld * World = m_Player->GetWorld(); - if (World != nullptr) - { - m_Player->StopEveryoneFromTargetingMe(); - m_Player->SetIsTicking(false); - World->RemovePlayer(m_Player, true); - } - m_Player->RemoveClientHandle(); + continue; } - m_State = csDestroyed; + return (ExpectedState < a_State); } @@ -304,7 +296,7 @@ bool cClientHandle::IsUUIDOnline(const AString & a_UUID) void cClientHandle::Kick(const AString & a_Reason) { - if (m_State >= csAuthenticating) // Don't log pings + if (IsLoggedIn()) // Don't log pings { LOGINFO("Kicking player %s for \"%s\"", m_Username.c_str(), StripColorCodes(a_Reason).c_str()); } @@ -317,13 +309,11 @@ void cClientHandle::Kick(const AString & a_Reason) void cClientHandle::Authenticate(const AString & a_Name, const AString & a_UUID, const Json::Value & a_Properties) { - if (m_State != csAuthenticating) + if (m_State != eState::csAuthenticating) { return; } - ASSERT(m_Player == nullptr); - m_Username = a_Name; // Only assign UUID and properties if not already pre-assigned (BungeeCord sends those in the Handshake packet): @@ -337,108 +327,118 @@ void cClientHandle::Authenticate(const AString & a_Name, const AString & a_UUID, } // Send login success (if the protocol supports it): - m_Protocol->SendLoginSuccess(); + m_Protocol.SendLoginSuccess(); + + // Obtain a strong reference to ourselves + auto Client = shared_from_this(); // Spawn player (only serversided, so data is loaded) - m_Player = new cPlayer(m_Self, GetUsername()); - InvalidateCachedSentChunk(); - m_Self.reset(); + auto Player = cpp14::make_unique<cPlayer>(Client, m_Username); + m_Player = Player.get(); cWorld * World = cRoot::Get()->GetWorld(m_Player->GetLoadedWorldName()); if (World == nullptr) { World = cRoot::Get()->GetDefaultWorld(); - m_Player->SetPosition(World->GetSpawnX(), World->GetSpawnY(), World->GetSpawnZ()); } if (m_Player->GetGameMode() == eGameMode_NotSet) { m_Player->LoginSetGameMode(World->GetGameMode()); } + m_Player->SetIP(m_IPString); - m_Player->SetIP (m_IPString); + cpp14::move_on_copy_wrapper<decltype(Player)> PlayerPtr(std::move(Player)); + World->QueueTask( + [World, Player = m_Player, PlayerPtr, Client](cWorld & a_World) mutable + { + // Plugins expect world to be set: + Player->SetWorld(World); - if (!cRoot::Get()->GetPluginManager()->CallHookPlayerJoined(*m_Player)) - { - cRoot::Get()->BroadcastChatJoin(Printf("%s has joined the game", GetUsername().c_str())); - LOGINFO("Player %s has joined the game", m_Username.c_str()); - } + if (!cRoot::Get()->GetPluginManager()->CallHookPlayerJoined(*Player)) + { + cRoot::Get()->BroadcastChatJoin(Printf("%s has joined the game", Client->GetUsername().c_str())); + LOGINFO("Player %s has joined the game", Client->GetUsername().c_str()); + } - m_ConfirmPosition = m_Player->GetPosition(); + // Return a server login packet + Client->GetProtocol().SendLogin(*Player, *World); - // Return a server login packet - m_Protocol->SendLogin(*m_Player, *World); + // Send Weather if raining: + if ((World->GetWeather() == 1) || (World->GetWeather() == 2)) + { + Client->GetProtocol().SendWeather(World->GetWeather()); + } - // Send Weather if raining: - if ((World->GetWeather() == 1) || (World->GetWeather() == 2)) - { - m_Protocol->SendWeather(World->GetWeather()); - } + // Send time: + Client->GetProtocol().SendTimeUpdate(World->GetWorldAge(), World->GetTimeOfDay(), World->IsDaylightCycleEnabled()); - // Send time: - m_Protocol->SendTimeUpdate(World->GetWorldAge(), World->GetTimeOfDay(), World->IsDaylightCycleEnabled()); + // Send contents of the inventory window + Client->GetProtocol().SendWholeInventory(*Player->GetWindow()); - // Send contents of the inventory window - m_Protocol->SendWholeInventory(*m_Player->GetWindow()); + // Send health + Client->GetProtocol().SendHealth(); - // Send health - m_Player->SendHealth(); + // Send experience + Client->GetProtocol().SendExperience(); - // Send experience - m_Player->SendExperience(); + // Send player list items + cRoot::Get()->BroadcastPlayerListsAddPlayer(*Player); + cRoot::Get()->SendPlayerLists(Player); - // Send player list items - SendPlayerListAddPlayer(*m_Player); - cRoot::Get()->BroadcastPlayerListsAddPlayer(*m_Player); - cRoot::Get()->SendPlayerLists(m_Player); + // Note: cEnttiy::Initialize takes ownership of the player object, however: + // 1. It is guaranteed to exist whilst the server is running and this clienthandle is alive + // 2. In the case that the server is stopping, it is guaranteed that we are destroyed before the player object is destroyed + Player->Initialize(std::move(PlayerPtr.value), *World); - m_Player->SetWorld(World); - m_State = csAuthenticated; + World->AddPlayer(Player); + Client->SetState(cClientHandle::eState::csAuthenticated); - // Query player team - m_Player->UpdateTeam(); + // Query player team + Player->UpdateTeam(); - // Send scoreboard data - World->GetScoreBoard().SendTo(*this); + // Send scoreboard data + World->GetScoreBoard().SendTo(*Client); - // Send statistics - SendStatistics(m_Player->GetStatManager()); + // Send statistics + Client->GetProtocol().SendStatistics(Player->GetStatManager()); + + cRoot::Get()->GetPluginManager()->CallHookPlayerSpawned(*Player); + } + ); // Delay the first ping until the client "settles down" // This should fix #889, "BadCast exception, cannot convert bit to fm" error in client m_PingStartTime = std::chrono::steady_clock::now() + std::chrono::seconds(3); // Send the first KeepAlive packet in 3 seconds - - cRoot::Get()->GetPluginManager()->CallHookPlayerSpawned(*m_Player); } -bool cClientHandle::StreamNextChunk(void) +void cClientHandle::StreamAllChunks(void) { - if ((m_State < csAuthenticated) || (m_State >= csDestroying)) + ASSERT((m_State >= eState::csAuthenticated) || (m_State < eState::csDestroying)); + ASSERT(m_Player != nullptr); + + if (m_Player->IsChangingWorlds()) { - return true; + // Make a best-effort attempt at bailing. + return; } - ASSERT(m_Player != nullptr); int ChunkPosX = m_Player->GetChunkX(); int ChunkPosZ = m_Player->GetChunkZ(); - if ((m_LastStreamedChunkX == ChunkPosX) && (m_LastStreamedChunkZ == ChunkPosZ)) - { - // All chunks are already loaded. Abort loading. - return true; - } + + std::vector<std::pair<cChunkCoords, cChunkSender::eChunkPriority>> ChunksToSend = { + { cChunkCoords(ChunkPosX, ChunkPosZ), cChunkSender::E_CHUNK_PRIORITY_HIGH } + }; // Get the look vector and normalize it. Vector3d Position = m_Player->GetEyePosition(); Vector3d LookVector = m_Player->GetLookVector(); LookVector.Normalize(); - // Lock the list - cCSLock Lock(m_CSChunkLists); - // High priority: Load the chunks that are in the view-direction of the player (with a radius of 3) for (int Range = 0; Range < m_CurrentViewDistance; Range++) { @@ -462,19 +462,13 @@ bool cClientHandle::StreamNextChunk(void) continue; } - // If the chunk already loading / loaded -> skip - if ( - (m_ChunksToSend.find(Coords) != m_ChunksToSend.end()) || - (m_LoadedChunks.find(Coords) != m_LoadedChunks.end()) - ) - { - continue; - } - - // Unloaded chunk found -> Send it to the client. - Lock.Unlock(); - StreamChunk(ChunkX, ChunkZ, ((Range <= 2) ? cChunkSender::E_CHUNK_PRIORITY_HIGH : cChunkSender::E_CHUNK_PRIORITY_MEDIUM)); - return false; + // Send the chunk; StreamChunk queues a task which will abort if it has been called for the chunk already (we are part of the chunk's clientlist) + ChunksToSend.emplace_back( + std::make_pair( + cChunkCoords(ChunkX, ChunkZ), + (Range <= 2) ? cChunkSender::E_CHUNK_PRIORITY_HIGH : cChunkSender::E_CHUNK_PRIORITY_MEDIUM + ) + ); } } } @@ -483,144 +477,72 @@ bool cClientHandle::StreamNextChunk(void) for (int d = 0; d <= m_CurrentViewDistance; ++d) // cycle through (square) distance, from nearest to furthest { // For each distance add chunks in a hollow square centered around current position: - cChunkCoordsList CurcleChunks; for (int i = -d; i <= d; ++i) { - CurcleChunks.push_back(cChunkCoords(ChunkPosX + d, ChunkPosZ + i)); - CurcleChunks.push_back(cChunkCoords(ChunkPosX - d, ChunkPosZ + i)); + ChunksToSend.emplace_back(std::make_pair(cChunkCoords(ChunkPosX + d, ChunkPosZ + i), cChunkSender::E_CHUNK_PRIORITY_LOW)); + ChunksToSend.emplace_back(std::make_pair(cChunkCoords(ChunkPosX - d, ChunkPosZ + i), cChunkSender::E_CHUNK_PRIORITY_LOW)); } for (int i = -d + 1; i < d; ++i) { - CurcleChunks.push_back(cChunkCoords(ChunkPosX + i, ChunkPosZ + d)); - CurcleChunks.push_back(cChunkCoords(ChunkPosX + i, ChunkPosZ - d)); - } - - // For each the CurcleChunks list and send the first unloaded chunk: - for (cChunkCoordsList::iterator itr = CurcleChunks.begin(), end = CurcleChunks.end(); itr != end; ++itr) - { - cChunkCoords Coords = *itr; - - // If the chunk already loading / loaded -> skip - if ( - (m_ChunksToSend.find(Coords) != m_ChunksToSend.end()) || - (m_LoadedChunks.find(Coords) != m_LoadedChunks.end()) - ) - { - continue; - } - - // Unloaded chunk found -> Send it to the client. - Lock.Unlock(); - StreamChunk(Coords.m_ChunkX, Coords.m_ChunkZ, cChunkSender::E_CHUNK_PRIORITY_LOW); - return false; + ChunksToSend.emplace_back(std::make_pair(cChunkCoords(ChunkPosZ + i, ChunkPosZ + d), cChunkSender::E_CHUNK_PRIORITY_LOW)); + ChunksToSend.emplace_back(std::make_pair(cChunkCoords(ChunkPosZ + i, ChunkPosZ - d), cChunkSender::E_CHUNK_PRIORITY_LOW)); } } - // All chunks are loaded -> Sets the last loaded chunk coordinates to current coordinates - m_LastStreamedChunkX = ChunkPosX; - m_LastStreamedChunkZ = ChunkPosZ; - return true; -} - - - - - -void cClientHandle::UnloadOutOfRangeChunks(void) -{ - int ChunkPosX = FAST_FLOOR_DIV(static_cast<int>(m_Player->GetPosX()), cChunkDef::Width); - int ChunkPosZ = FAST_FLOOR_DIV(static_cast<int>(m_Player->GetPosZ()), cChunkDef::Width); - - cChunkCoordsList ChunksToRemove; - { - cCSLock Lock(m_CSChunkLists); - for (auto itr = m_LoadedChunks.begin(); itr != m_LoadedChunks.end();) + m_Player->GetWorld()->QueueTask( + [ChunksToSend = std::move(ChunksToSend), ClientHandle = shared_from_this()](cWorld & a_World) { - int DiffX = Diff((*itr).m_ChunkX, ChunkPosX); - int DiffZ = Diff((*itr).m_ChunkZ, ChunkPosZ); - if ((DiffX > m_CurrentViewDistance) || (DiffZ > m_CurrentViewDistance)) - { - ChunksToRemove.push_back(*itr); - itr = m_LoadedChunks.erase(itr); - } - else + for (const auto & Chunk : ChunksToSend) { - ++itr; - } - } + if (a_World.AddChunkClient(Chunk.first.m_ChunkX, Chunk.first.m_ChunkZ, ClientHandle)) + { + a_World.GetChunkSender().QueueSendChunkTo(Chunk.first.m_ChunkX, Chunk.first.m_ChunkZ, Chunk.second, ClientHandle); - for (auto itr = m_ChunksToSend.begin(); itr != m_ChunksToSend.end();) - { - int DiffX = Diff((*itr).m_ChunkX, ChunkPosX); - int DiffZ = Diff((*itr).m_ChunkZ, ChunkPosZ); - if ((DiffX > m_CurrentViewDistance) || (DiffZ > m_CurrentViewDistance)) - { - itr = m_ChunksToSend.erase(itr); - } - else - { - ++itr; + // Clarification: std::partition, which cWorld::TickQueuedTasks uses, doesn't guarantee ordering + // However, we won't end up with a situation where a RemoveChunkClient ends up before an AddChunkClient for a chunk + // because UnloadChunk / RemoveChunkClient is based on our m_LoadedChunks list, which is only updated when this task to add a client has finished. + } } } - } - - for (cChunkCoordsList::iterator itr = ChunksToRemove.begin(); itr != ChunksToRemove.end(); ++itr) - { - m_Player->GetWorld()->RemoveChunkClient(itr->m_ChunkX, itr->m_ChunkZ, this); - SendUnloadChunk(itr->m_ChunkX, itr->m_ChunkZ); - } + ); } - -void cClientHandle::StreamChunk(int a_ChunkX, int a_ChunkZ, cChunkSender::eChunkPriority a_Priority) +void cClientHandle::UnloadOutOfRangeChunks(void) { - if (m_State >= csDestroying) + if (m_LoadedChunks.empty()) { - // Don't stream chunks to clients that are being destroyed return; } - cWorld * World = m_Player->GetWorld(); - ASSERT(World != nullptr); + int ChunkPosX = FAST_FLOOR_DIV(static_cast<int>(m_Player->GetPosX()), cChunkDef::Width); + int ChunkPosZ = FAST_FLOOR_DIV(static_cast<int>(m_Player->GetPosZ()), cChunkDef::Width); - if (World->AddChunkClient(a_ChunkX, a_ChunkZ, this)) + for (auto EraseItr = m_LoadedChunks.begin(); EraseItr != m_LoadedChunks.end();) { + int DiffX = Diff(EraseItr->first.m_ChunkX, ChunkPosX); + int DiffZ = Diff(EraseItr->first.m_ChunkZ, ChunkPosZ); + if ( + (DiffX <= m_CurrentViewDistance) && + (DiffZ <= m_CurrentViewDistance) && + (m_Player->GetWorld() == &EraseItr->second.get()) + ) { - cCSLock Lock(m_CSChunkLists); - m_LoadedChunks.emplace(a_ChunkX, a_ChunkZ); - m_ChunksToSend.emplace(a_ChunkX, a_ChunkZ); + ++EraseItr; + continue; } - World->SendChunkTo(a_ChunkX, a_ChunkZ, a_Priority, this); - } -} - - - + EraseItr->second.get().QueueTask( + [ChunkCoordinates = EraseItr->first, ClientHandle = shared_from_this()](cWorld & a_World) + { + a_World.RemoveChunkClient(ChunkCoordinates.m_ChunkX, ChunkCoordinates.m_ChunkZ, ClientHandle); + } + ); + m_Protocol.SendUnloadChunk(EraseItr->first.m_ChunkX, EraseItr->first.m_ChunkZ); -// Removes the client from all chunks. Used when switching worlds or destroying the player -void cClientHandle::RemoveFromAllChunks() -{ - cWorld * World = m_Player->GetWorld(); - if (World != nullptr) - { - World->RemoveClientFromChunks(this); - } - - { - // Reset all chunk lists: - cCSLock Lock(m_CSChunkLists); - m_LoadedChunks.clear(); - m_ChunksToSend.clear(); - m_SentChunks.clear(); - - // Also reset the LastStreamedChunk coords to bogus coords, - // so that all chunks are streamed in subsequent StreamChunks() call (FS #407) - m_LastStreamedChunkX = 0x7fffffff; - m_LastStreamedChunkZ = 0x7fffffff; + EraseItr = m_LoadedChunks.erase(EraseItr); } } @@ -638,26 +560,6 @@ void cClientHandle::HandleNPCTrade(int a_SlotNum) -void cClientHandle::HandlePing(void) -{ - // Somebody tries to retrieve information about the server - AString Reply; - const cServer & Server = *cRoot::Get()->GetServer(); - - Printf(Reply, "%s%s%i%s%i", - Server.GetDescription().c_str(), - cChatColor::Delimiter, - Server.GetNumPlayers(), - cChatColor::Delimiter, - Server.GetMaxPlayers() - ); - Kick(Reply); -} - - - - - bool cClientHandle::HandleLogin(UInt32 a_ProtocolVersion, const AString & a_Username) { // If the protocol version hasn't been set yet, set it now: @@ -676,8 +578,8 @@ bool cClientHandle::HandleLogin(UInt32 a_ProtocolVersion, const AString & a_User } // Schedule for authentication; until then, let the player wait (but do not block) - m_State = csAuthenticating; - cRoot::Get()->GetAuthenticator().Authenticate(GetUniqueID(), GetUsername(), m_Protocol->GetAuthServerID()); + SetState(eState::csAuthenticating); + cRoot::Get()->GetAuthenticator().Authenticate(GetUniqueID(), GetUsername(), m_Protocol.GetAuthServerID()); return true; } @@ -762,7 +664,7 @@ void cClientHandle::HandlePlayerAbilities(bool a_CanFly, bool a_IsFlying, float void cClientHandle::HandlePlayerPos(double a_PosX, double a_PosY, double a_PosZ, double a_Stance, bool a_IsOnGround) { - if ((m_Player == nullptr) || (m_State != csPlaying)) + if (m_State != eState::csPlaying) { // The client hasn't been spawned yet and sends nonsense, we know better return; @@ -775,8 +677,7 @@ void cClientHandle::HandlePlayerPos(double a_PosX, double a_PosY, double a_PosZ, } Vector3d NewPosition(a_PosX, a_PosY, a_PosZ); - Vector3d OldPosition = GetPlayer()->GetPosition(); - auto PreviousIsOnGround = GetPlayer()->IsOnGround(); + Vector3d OldPosition = m_Player->GetPosition(); // If the player has moved too far, "repair" them: if ((OldPosition - NewPosition).SqrLength() > 100 * 100) @@ -794,7 +695,13 @@ void cClientHandle::HandlePlayerPos(double a_PosX, double a_PosY, double a_PosZ, // TODO: should do some checks to see if player is not moving through terrain // TODO: Official server refuses position packets too far away from each other, kicking "hacked" clients; we should, too + + if (cChunkDef::BlockToChunk(NewPosition) != cChunkDef::BlockToChunk(m_Player->GetLastPosition())) + { + m_ShouldRefreshSentChunks = true; + } + auto PreviousIsOnGround = m_Player->IsOnGround(); m_Player->SetPosition(NewPosition); m_Player->SetStance(a_Stance); m_Player->SetTouchGround(a_IsOnGround); @@ -996,14 +903,6 @@ void cClientHandle::HandleLeftClick(int a_BlockX, int a_BlockY, int a_BlockZ, eB a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_Status ); - m_NumBlockChangeInteractionsThisTick++; - - if (!CheckBlockInteractionsRate()) - { - Kick("Too many blocks were destroyed per unit time - hacked client?"); - return; - } - if ((a_Status == DIG_STATUS_STARTED) || (a_Status == DIG_STATUS_FINISHED)) { if (a_BlockFace == BLOCK_FACE_NONE) @@ -1042,7 +941,7 @@ void cClientHandle::HandleLeftClick(int a_BlockX, int a_BlockY, int a_BlockZ, eB } } - cPluginManager * PlgMgr = cRoot::Get()->GetPluginManager(); + auto PlgMgr = cRoot::Get()->GetPluginManager(); if (m_Player->IsFrozen() || PlgMgr->CallHookPlayerLeftClick(*m_Player, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, static_cast<char>(a_Status))) { // A plugin doesn't agree with the action, replace the block on the client and quit: @@ -1349,7 +1248,7 @@ void cClientHandle::HandleRightClick(int a_BlockX, int a_BlockY, int a_BlockZ, e a_BlockFace = BLOCK_FACE_NONE; } - cPluginManager * PlgMgr = cRoot::Get()->GetPluginManager(); + auto PlgMgr = cRoot::Get()->GetPluginManager(); if (m_Player->IsFrozen() || PlgMgr->CallHookPlayerRightClick(*m_Player, a_BlockX, a_BlockY, a_BlockZ, a_BlockFace, a_CursorX, a_CursorY, a_CursorZ)) { // A plugin doesn't agree with the action, replace the block on the client and quit: @@ -1378,14 +1277,6 @@ void cClientHandle::HandleRightClick(int a_BlockX, int a_BlockY, int a_BlockZ, e return; } - m_NumBlockChangeInteractionsThisTick++; - - if (!CheckBlockInteractionsRate()) - { - Kick("Too many blocks were placed / interacted with per unit time - hacked client?"); - return; - } - const cItem & Equipped = m_Player->GetInventory().GetEquippedItem(); if ((Equipped.m_ItemType != a_HeldItem.m_ItemType) && (a_HeldItem.m_ItemType != -1)) @@ -1488,6 +1379,7 @@ void cClientHandle::HandleChat(const AString & a_Message) // Not a command, broadcast as a message: cCompositeChat Msg; AString Color = m_Player->GetColor(); + if (Color.length() == 3) { Color = AString("@") + Color[2]; @@ -1496,6 +1388,7 @@ void cClientHandle::HandleChat(const AString & a_Message) { Color.clear(); } + Msg.AddTextPart(AString("<") + m_Player->GetName() + "> ", Color); Msg.ParseText(Message); Msg.UnderlineUrls(); @@ -1508,7 +1401,7 @@ void cClientHandle::HandleChat(const AString & a_Message) void cClientHandle::HandlePlayerLook(float a_Rotation, float a_Pitch, bool a_IsOnGround) { - if ((m_Player == nullptr) || (m_State != csPlaying)) + if (m_State != eState::csPlaying) { return; } @@ -1606,7 +1499,12 @@ void cClientHandle::HandleUpdateSign( if (m_LastPlacedSign.Equals(Vector3i(a_BlockX, a_BlockY, a_BlockZ))) { m_LastPlacedSign.Set(0, -1, 0); - m_Player->GetWorld()->SetSignLines(a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4, m_Player); + m_Player->GetWorld()->QueueTask( + [=](cWorld & a_World) + { + a_World.SetSignLines(a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4, m_Player); + } + ); } } @@ -1684,11 +1582,6 @@ void cClientHandle::HandleUseEntity(UInt32 a_TargetEntityID, bool a_IsLeftClick) void cClientHandle::HandleRespawn(void) { - if (m_Player == nullptr) - { - Destroy(); - return; - } m_Player->Respawn(); cRoot::Get()->GetPluginManager()->CallHookPlayerSpawned(*m_Player); } @@ -1717,28 +1610,12 @@ bool cClientHandle::CheckMultiLogin(const AString & a_Username) return true; } - // Check if the player is waiting to be transferred to the World. + // Check if the username is connected already: if (cRoot::Get()->GetServer()->IsPlayerInQueue(a_Username)) { Kick("A player of the username is already logged in"); return false; } - - class cCallback : - public cPlayerListCallback - { - virtual bool Item(cPlayer * a_Player) override - { - return true; - } - } Callback; - - // Check if the player is in any World. - if (cRoot::Get()->DoWithPlayer(a_Username, Callback)) - { - Kick("A player of the username is already logged in"); - return false; - } return true; } @@ -1793,9 +1670,9 @@ void cClientHandle::HandleEntityLeaveBed(UInt32 a_EntityID) return; } - cChunkInterface Interface(GetPlayer()->GetWorld()->GetChunkMap()); - cBlockBedHandler::SetBedOccupationState(Interface, GetPlayer()->GetLastBedPos(), false); - GetPlayer()->SetIsInBed(false); + cChunkInterface Interface(m_Player->GetWorld()->GetChunkMap()); + cBlockBedHandler::SetBedOccupationState(Interface, m_Player->GetLastBedPos(), false); + m_Player->SetIsInBed(false); } @@ -1819,10 +1696,6 @@ void cClientHandle::HandleEntitySprinting(UInt32 a_EntityID, bool a_IsSprinting) void cClientHandle::HandleUnmount(void) { - if (m_Player == nullptr) - { - return; - } m_Player->Detach(); } @@ -1833,6 +1706,7 @@ void cClientHandle::HandleUnmount(void) void cClientHandle::HandleTabCompletion(const AString & a_Text) { AStringVector Results; + // Get player name completions. if (cRoot::Get()->GetServer()->ShouldAllowMultiWorldTabCompletion()) { @@ -1843,8 +1717,9 @@ void cClientHandle::HandleTabCompletion(const AString & a_Text) m_Player->GetWorld()->TabCompleteUserName(a_Text, Results); } - // Get command completions. + // Get command completions cRoot::Get()->GetPluginManager()->TabCompleteCommand(a_Text, Results, m_Player); + if (Results.empty()) { return; @@ -1861,12 +1736,6 @@ void cClientHandle::HandleTabCompletion(const AString & a_Text) void cClientHandle::SendData(const char * a_Data, size_t a_Size) { - if (m_HasSentDC) - { - // This could crash the client, because they've already unloaded the world etc., and suddenly a wild packet appears (#31) - return; - } - cCSLock Lock(m_CSOutgoingData); m_OutgoingData.append(a_Data, a_Size); } @@ -1877,92 +1746,131 @@ void cClientHandle::SendData(const char * a_Data, size_t a_Size) void cClientHandle::RemoveFromWorld(void) { + ASSERT(cRoot::Get()->GetServer()->IsInTickThread()); + // Remove all associated chunks: - decltype(m_LoadedChunks) Chunks; + for (const auto & Chunk : m_LoadedChunks) { - cCSLock Lock(m_CSChunkLists); - std::swap(Chunks, m_LoadedChunks); - m_ChunksToSend.clear(); + Chunk.second.get().QueueTask( + [ChunkCoordinates = Chunk.first, ClientHandle = shared_from_this()](cWorld & a_World) + { + a_World.RemoveChunkClient(ChunkCoordinates.m_ChunkX, ChunkCoordinates.m_ChunkZ, ClientHandle); + } + ); + GetProtocol().SendUnloadChunk(Chunk.first.m_ChunkX, Chunk.first.m_ChunkZ); } - for (auto && Chunk : Chunks) - { - m_Protocol->SendUnloadChunk(Chunk.m_ChunkX, Chunk.m_ChunkZ); - } // for itr - Chunks[] - // Here, we set last streamed values to bogus ones so everything is resent - m_LastStreamedChunkX = 0x7fffffff; - m_LastStreamedChunkZ = 0x7fffffff; + m_LoadedChunks.clear(); } -void cClientHandle::InvalidateCachedSentChunk() +bool cClientHandle::EnforceBlockInteractionsRate(void) { - ASSERT(m_Player != nullptr); - // Sets this to a junk value different from the player's current chunk, which invalidates it and - // ensures its value will not be used. - m_CachedSentChunk = cChunkCoords(m_Player->GetChunkX() + 500, m_Player->GetChunkZ()); + ASSERT(cRoot::Get()->GetServer()->IsInTickThread()); + + m_NumBlockChangeInteractionsThisTick++; + if (m_NumBlockChangeInteractionsThisTick > MAX_BLOCK_CHANGE_INTERACTIONS) + { + Kick("Too many blocks were destroyed per unit time - hacked client?"); + return false; + } + + return true; } -bool cClientHandle::IsPlayerChunkSent() +void cClientHandle::ProcessQueuedIncomingData(void) { - return m_HasSentPlayerChunk; + decltype(m_IncomingData) IncomingData; + { + cCSLock Lock(m_CSIncomingData); + std::swap(IncomingData, m_IncomingData); + } + + if (!IncomingData.empty()) + { + m_Protocol.DataReceived(IncomingData.data(), IncomingData.size()); + } } -bool cClientHandle::CheckBlockInteractionsRate(void) +void cClientHandle::ProcessDataCommitQueue(void) { - ASSERT(m_Player != nullptr); - ASSERT(m_Player->GetWorld() != nullptr); + if (m_DataCommitQueue.empty()) + { + return; + } - if (m_NumBlockChangeInteractionsThisTick > MAX_BLOCK_CHANGE_INTERACTIONS) + if ((m_Player == nullptr) || (m_Player->GetWorld() == nullptr)) { - return false; + Kick("Illegal packet sent - player not spawned yet - hacked client?"); + return; } - return true; + decltype(m_DataCommitQueue) DataCommitTasks; + std::swap(DataCommitTasks, m_DataCommitQueue); + + m_Player->GetWorld()->QueueTask( + [DataCommitTasks = std::move(DataCommitTasks), Player = m_Player](cWorld & a_World) + { + if (Player->IsChangingWorlds() || (Player->GetWorld() != &a_World)) + { + // IsChangingWorlds is true: cPlayer::m_World may be updated without warning - cannot handle this. + // cPlayer::m_World is unequal to a_World: player has completed world change - deal with after effect by bailing + return; + } + + for (const auto & Task : DataCommitTasks) + { + Task(); + } + } + ); } -void cClientHandle::Tick(float a_Dt) +void cClientHandle::ProcessQueuedOutgoingData(void) { - // Process received network data: - AString IncomingData; - { - cCSLock Lock(m_CSIncomingData); - std::swap(IncomingData, m_IncomingData); - } - if (!IncomingData.empty()) - { - m_Protocol->DataReceived(IncomingData.data(), IncomingData.size()); - } - - // Send any queued outgoing data: - AString OutgoingData; + decltype(m_OutgoingData) OutgoingData; { cCSLock Lock(m_CSOutgoingData); std::swap(OutgoingData, m_OutgoingData); } + if (!OutgoingData.empty()) { - cTCPLinkPtr Link(m_Link); // Grab a copy of the link in a multithread-safe way - if ((Link != nullptr)) { - Link->Send(OutgoingData.data(), OutgoingData.size()); + cCSLock Lock(m_CSLink); + + // All possible operations which reset m_Link MUST cause the clienthandle to cease to be ticked by the server + ASSERT(m_Link != nullptr); + + m_Link->Send(OutgoingData); } } +} + + + + + +void cClientHandle::Tick(float a_Dt) +{ + ProcessQueuedIncomingData(); + ProcessQueuedOutgoingData(); + ProcessDataCommitQueue(); m_TicksSinceLastPacket += 1; if (m_TicksSinceLastPacket > 600) // 30 seconds time-out @@ -1976,71 +1884,20 @@ void cClientHandle::Tick(float a_Dt) return; } - - // Freeze the player if it is standing on a chunk not yet sent to the client - m_HasSentPlayerChunk = false; - if (m_Player->GetParentChunk() != nullptr) - { - // If the chunk is invalid, do not bother checking if it's sent to the client, it is definitely not - if (m_Player->GetParentChunk()->IsValid()) - { - // Before iterating m_SentChunks, see if the player's coords equal m_CachedSentChunk - // If so, the chunk has been sent to the client. This is an optimization that saves an iteration of m_SentChunks. - if (cChunkCoords(m_Player->GetChunkX(), m_Player->GetChunkZ()) == m_CachedSentChunk) - { - m_HasSentPlayerChunk = true; - } - else - { - // This block is entered only when the player moves to a new chunk, invalidating the cached coords. - // Otherwise the cached coords are used. - cCSLock Lock(m_CSChunkLists); - auto itr = std::find(m_SentChunks.begin(), m_SentChunks.end(), cChunkCoords(m_Player->GetChunkX(), m_Player->GetChunkZ())); - if (itr != m_SentChunks.end()) - { - m_CachedSentChunk = *itr; - m_HasSentPlayerChunk = true; - } - } - } - } - - // If the chunk the player's in was just sent, spawn the player: - if (m_HasSentPlayerChunk && (m_State == csDownloadingWorld)) - { - m_Protocol->SendPlayerMoveLook(); - m_State = csPlaying; - } - // Send a ping packet: - if (m_State == csPlaying) + if ((m_PingStartTime + PING_TIME_MS <= std::chrono::steady_clock::now())) { - if ((m_PingStartTime + PING_TIME_MS <= std::chrono::steady_clock::now())) - { - m_PingID++; - m_PingStartTime = std::chrono::steady_clock::now(); - m_Protocol->SendKeepAlive(m_PingID); - } + m_PingID++; + m_PingStartTime = std::chrono::steady_clock::now(); + m_Protocol.SendKeepAlive(m_PingID); } - if ((m_State >= csAuthenticated) && (m_State < csDestroying)) + if (m_ShouldRefreshSentChunks && (m_State >= eState::csAuthenticated) && (m_State < eState::csDestroying)) { - // Stream 4 chunks per tick - for (int i = 0; i < 4; i++) - { - // Stream the next chunk - if (StreamNextChunk()) - { - // Streaming finished. All chunks are loaded. - break; - } - } + StreamAllChunks(); + UnloadOutOfRangeChunks(); - // Unload all chunks that are out of the view distance (every 5 seconds) - if ((m_Player->GetWorld()->GetWorldAge() % 100) == 0) - { - UnloadOutOfRangeChunks(); - } + m_ShouldRefreshSentChunks = false; } // Handle block break animation: @@ -2067,57 +1924,9 @@ void cClientHandle::Tick(float a_Dt) -void cClientHandle::ServerTick(float a_Dt) -{ - // Process received network data: - AString IncomingData; - { - cCSLock Lock(m_CSIncomingData); - std::swap(IncomingData, m_IncomingData); - } - if (!IncomingData.empty()) - { - m_Protocol->DataReceived(IncomingData.data(), IncomingData.size()); - } - - // Send any queued outgoing data: - AString OutgoingData; - { - cCSLock Lock(m_CSOutgoingData); - std::swap(OutgoingData, m_OutgoingData); - } - if ((m_Link != nullptr) && !OutgoingData.empty()) - { - m_Link->Send(OutgoingData.data(), OutgoingData.size()); - } - - if (m_State == csAuthenticated) - { - StreamNextChunk(); - - // Remove the client handle from the server, it will be ticked from its cPlayer object from now on - cRoot::Get()->GetServer()->ClientMovedToWorld(this); - - // Add the player to the world (start ticking from there): - m_State = csDownloadingWorld; - m_Player->Initialize(*(m_Player->GetWorld())); - return; - } - - m_TicksSinceLastPacket += 1; - if (m_TicksSinceLastPacket > 600) // 30 seconds - { - SendDisconnect("Nooooo!! You timed out! D: Come back!"); - } -} - - - - - void cClientHandle::SendAttachEntity(const cEntity & a_Entity, const cEntity & a_Vehicle) { - m_Protocol->SendAttachEntity(a_Entity, a_Vehicle); + m_Protocol.SendAttachEntity(a_Entity, a_Vehicle); } @@ -2126,7 +1935,7 @@ void cClientHandle::SendAttachEntity(const cEntity & a_Entity, const cEntity & a void cClientHandle::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, char a_Byte1, char a_Byte2, BLOCKTYPE a_BlockType) { - m_Protocol->SendBlockAction(a_BlockX, a_BlockY, a_BlockZ, a_Byte1, a_Byte2, a_BlockType); + m_Protocol.SendBlockAction(a_BlockX, a_BlockY, a_BlockZ, a_Byte1, a_Byte2, a_BlockType); } @@ -2135,7 +1944,7 @@ void cClientHandle::SendBlockAction(int a_BlockX, int a_BlockY, int a_BlockZ, ch void cClientHandle::SendBlockBreakAnim(UInt32 a_EntityID, int a_BlockX, int a_BlockY, int a_BlockZ, char a_Stage) { - m_Protocol->SendBlockBreakAnim(a_EntityID, a_BlockX, a_BlockY, a_BlockZ, a_Stage); + m_Protocol.SendBlockBreakAnim(a_EntityID, a_BlockX, a_BlockY, a_BlockZ, a_Stage); } @@ -2144,17 +1953,7 @@ void cClientHandle::SendBlockBreakAnim(UInt32 a_EntityID, int a_BlockX, int a_Bl void cClientHandle::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta) { - int ChunkX, ChunkZ = 0; - cChunkDef::BlockToChunk(a_BlockX, a_BlockZ, ChunkX, ChunkZ); - cChunkCoords ChunkCoords = cChunkCoords(ChunkX, ChunkZ); - - // Do not send block changes in chunks that weren't sent to the client yet: - cCSLock Lock(m_CSChunkLists); - if (std::find(m_SentChunks.begin(), m_SentChunks.end(), ChunkCoords) != m_SentChunks.end()) - { - Lock.Unlock(); - m_Protocol->SendBlockChange(a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta); - } + GetProtocol().SendBlockChange(a_BlockX, a_BlockY, a_BlockZ, a_BlockType, a_BlockMeta); } @@ -2163,16 +1962,7 @@ void cClientHandle::SendBlockChange(int a_BlockX, int a_BlockY, int a_BlockZ, BL void cClientHandle::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlockVector & a_Changes) { - ASSERT(!a_Changes.empty()); // We don't want to be sending empty change packets! - - // Do not send block changes in chunks that weren't sent to the client yet: - cChunkCoords ChunkCoords = cChunkCoords(a_ChunkX, a_ChunkZ); - cCSLock Lock(m_CSChunkLists); - if (std::find(m_SentChunks.begin(), m_SentChunks.end(), ChunkCoords) != m_SentChunks.end()) - { - Lock.Unlock(); - m_Protocol->SendBlockChanges(a_ChunkX, a_ChunkZ, a_Changes); - } + GetProtocol().SendBlockChanges(a_ChunkX, a_ChunkZ, a_Changes); } @@ -2181,19 +1971,9 @@ void cClientHandle::SendBlockChanges(int a_ChunkX, int a_ChunkZ, const sSetBlock void cClientHandle::SendChat(const AString & a_Message, eMessageType a_ChatPrefix, const AString & a_AdditionalData) { - cWorld * World = GetPlayer()->GetWorld(); - if (World == nullptr) - { - World = cRoot::Get()->GetWorld(GetPlayer()->GetLoadedWorldName()); - if (World == nullptr) - { - World = cRoot::Get()->GetDefaultWorld(); - } - } - - bool ShouldUsePrefixes = World->ShouldUseChatPrefixes(); + bool ShouldUsePrefixes = m_Player->GetWorld()->ShouldUseChatPrefixes(); AString Message = FormatMessageType(ShouldUsePrefixes, a_ChatPrefix, a_AdditionalData); - m_Protocol->SendChat(Message.append(a_Message), ctChatBox, ShouldUsePrefixes); + m_Protocol.SendChat(Message.append(a_Message), ctChatBox, ShouldUsePrefixes); } @@ -2202,18 +1982,8 @@ void cClientHandle::SendChat(const AString & a_Message, eMessageType a_ChatPrefi void cClientHandle::SendChat(const cCompositeChat & a_Message) { - cWorld * World = GetPlayer()->GetWorld(); - if (World == nullptr) - { - World = cRoot::Get()->GetWorld(GetPlayer()->GetLoadedWorldName()); - if (World == nullptr) - { - World = cRoot::Get()->GetDefaultWorld(); - } - } - - bool ShouldUsePrefixes = World->ShouldUseChatPrefixes(); - m_Protocol->SendChat(a_Message, ctChatBox, ShouldUsePrefixes); + bool ShouldUsePrefixes = m_Player->GetWorld()->ShouldUseChatPrefixes(); + m_Protocol.SendChat(a_Message, ctChatBox, ShouldUsePrefixes); } @@ -2222,18 +1992,8 @@ void cClientHandle::SendChat(const cCompositeChat & a_Message) void cClientHandle::SendChatAboveActionBar(const AString & a_Message, eMessageType a_ChatPrefix, const AString & a_AdditionalData) { - cWorld * World = GetPlayer()->GetWorld(); - if (World == nullptr) - { - World = cRoot::Get()->GetWorld(GetPlayer()->GetLoadedWorldName()); - if (World == nullptr) - { - World = cRoot::Get()->GetDefaultWorld(); - } - } - - AString Message = FormatMessageType(World->ShouldUseChatPrefixes(), a_ChatPrefix, a_AdditionalData); - m_Protocol->SendChat(Message.append(a_Message), ctAboveActionBar); + AString Message = FormatMessageType(m_Player->GetWorld()->ShouldUseChatPrefixes(), a_ChatPrefix, a_AdditionalData); + m_Protocol.SendChat(Message.append(a_Message), ctAboveActionBar); } @@ -2242,7 +2002,7 @@ void cClientHandle::SendChatAboveActionBar(const AString & a_Message, eMessageTy void cClientHandle::SendChatAboveActionBar(const cCompositeChat & a_Message) { - m_Protocol->SendChat(a_Message, ctAboveActionBar, GetPlayer()->GetWorld()->ShouldUseChatPrefixes()); + m_Protocol.SendChat(a_Message, ctAboveActionBar, m_Player->GetWorld()->ShouldUseChatPrefixes()); } @@ -2251,19 +2011,9 @@ void cClientHandle::SendChatAboveActionBar(const cCompositeChat & a_Message) void cClientHandle::SendChatSystem(const AString & a_Message, eMessageType a_ChatPrefix, const AString & a_AdditionalData) { - cWorld * World = GetPlayer()->GetWorld(); - if (World == nullptr) - { - World = cRoot::Get()->GetWorld(GetPlayer()->GetLoadedWorldName()); - if (World == nullptr) - { - World = cRoot::Get()->GetDefaultWorld(); - } - } - - auto ShouldUsePrefixes = World->ShouldUseChatPrefixes(); + auto ShouldUsePrefixes = m_Player->GetWorld()->ShouldUseChatPrefixes(); AString Message = FormatMessageType(ShouldUsePrefixes, a_ChatPrefix, a_AdditionalData); - m_Protocol->SendChat(Message.append(a_Message), ctSystem, ShouldUsePrefixes); + m_Protocol.SendChat(Message.append(a_Message), ctSystem, ShouldUsePrefixes); } @@ -2272,49 +2022,80 @@ void cClientHandle::SendChatSystem(const AString & a_Message, eMessageType a_Cha void cClientHandle::SendChatSystem(const cCompositeChat & a_Message) { - m_Protocol->SendChat(a_Message, ctSystem, GetPlayer()->GetWorld()->ShouldUseChatPrefixes()); + m_Protocol.SendChat(a_Message, ctSystem, m_Player->GetWorld()->ShouldUseChatPrefixes()); } -void cClientHandle::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializer & a_Serializer) +void cClientHandle::SendChunkData(cWorld & a_ChunkSenderWorld, const cChunkCoords & a_ChunkCoordinates, cChunkDataSerializer & a_Serializer) { - ASSERT(m_Player != nullptr); + m_Protocol.SendChunkData(a_ChunkCoordinates.m_ChunkX, a_ChunkCoordinates.m_ChunkZ, a_Serializer); - // Check chunks being sent, erase them from m_ChunksToSend: - bool Found = false; - { - cCSLock Lock(m_CSChunkLists); - auto itr = m_ChunksToSend.find(cChunkCoords{a_ChunkX, a_ChunkZ}); - if (itr != m_ChunksToSend.end()) + cRoot::Get()->GetServer()->QueueTask( + [&a_ChunkSenderWorld, a_ChunkCoordinates, ClientHandle = shared_from_this()] { - m_ChunksToSend.erase(itr); - Found = true; - } - } - if (!Found) - { - // This just sometimes happens. If you have a reliably replicatable situation for this, go ahead and fix it - // It's not a big issue anyway, just means that some chunks may be compressed several times - // LOGD("Refusing to send chunk [%d, %d] to client \"%s\" at [%d, %d].", ChunkX, ChunkZ, m_Username.c_str(), m_Player->GetChunkX(), m_Player->GetChunkZ()); - return; - } - - if (m_Protocol == nullptr) - { - // TODO (#2588): investigate if and why this occurs - return; - } + // Add the chunk to the list of chunks sent to the player: + auto Result = ClientHandle->m_LoadedChunks.emplace(a_ChunkCoordinates, std::ref(a_ChunkSenderWorld)); + if (Result.second || (&Result.first->second.get() != &a_ChunkSenderWorld)) + { + auto Player = ClientHandle->GetPlayer(); + if ( + (Player->GetChunkX() == a_ChunkCoordinates.m_ChunkX) && + (Player->GetChunkZ() == a_ChunkCoordinates.m_ChunkZ) + ) + { + if (ClientHandle->m_State == eState::csAuthenticated) + { + ClientHandle->SendPlayerMoveLook(); + ClientHandle->SetState(eState::csPlaying); + } + + Player->GetWorld()->QueueTask( + [Player](cWorld & a_World) + { + auto SearchingPosition = Player->GetPosition(); + if (SearchingPosition.y < 0) + { + SearchingPosition.y = 0; + } + + while (SearchingPosition.y < cChunkDef::Height - 2) + { + // If we find a position with enough space for the player + if (a_World.GetBlock(SearchingPosition.x, SearchingPosition.y, SearchingPosition.z) == E_BLOCK_AIR) + { + if (a_World.GetBlock(SearchingPosition.x, SearchingPosition.y + 1, SearchingPosition.z) == E_BLOCK_AIR) + { + Player->TeleportToCoords(SearchingPosition); + break; + } + else + { + SearchingPosition.y += 2; + } + } + else + { + SearchingPosition.y++; + } + } + } + ); + } - m_Protocol->SendChunkData(a_ChunkX, a_ChunkZ, a_Serializer); + Result.first->second.get().QueueTask( + [a_ChunkCoordinates, ClientHandle](cWorld & a_World) + { + a_World.RemoveChunkClient(a_ChunkCoordinates.m_ChunkX, a_ChunkCoordinates.m_ChunkZ, ClientHandle); + } + ); - // Add the chunk to the list of chunks sent to the player: - { - cCSLock Lock(m_CSChunkLists); - m_SentChunks.push_back(cChunkCoords(a_ChunkX, a_ChunkZ)); - } + Result.first->second = std::ref(a_ChunkSenderWorld); + } + } + ); } @@ -2323,7 +2104,7 @@ void cClientHandle::SendChunkData(int a_ChunkX, int a_ChunkZ, cChunkDataSerializ void cClientHandle::SendCollectEntity(const cEntity & a_Entity, const cPlayer & a_Player) { - m_Protocol->SendCollectEntity(a_Entity, a_Player); + m_Protocol.SendCollectEntity(a_Entity, a_Player); } @@ -2332,7 +2113,7 @@ void cClientHandle::SendCollectEntity(const cEntity & a_Entity, const cPlayer & void cClientHandle::SendDestroyEntity(const cEntity & a_Entity) { - m_Protocol->SendDestroyEntity(a_Entity); + m_Protocol.SendDestroyEntity(a_Entity); } @@ -2341,7 +2122,7 @@ void cClientHandle::SendDestroyEntity(const cEntity & a_Entity) void cClientHandle::SendDetachEntity(const cEntity & a_Entity, const cEntity & a_PreviousVehicle) { - m_Protocol->SendDetachEntity(a_Entity, a_PreviousVehicle); + m_Protocol.SendDetachEntity(a_Entity, a_PreviousVehicle); } @@ -2350,14 +2131,27 @@ void cClientHandle::SendDetachEntity(const cEntity & a_Entity, const cEntity & a void cClientHandle::SendDisconnect(const AString & a_Reason) { - // Destruction (Destroy()) is called when the client disconnects, not when a disconnect packet (or anything else) is sent - // Otherwise, the cClientHandle instance is can be unexpectedly removed from the associated player - Core/#142 - if (!m_HasSentDC) + // Lemma 1: All outgoing data is queued to be sent on the server tick thread. + // Lemma 2: All link-closing actions will set state to destroyed. + // Lemma 3: A call to Destroy() is guaranteed to prevent the send queue from being processed. + // Corollary: Prevents situations where the client was signalled to disconnect - Kick() - and suddenly a wild packet appears (#31) + // Note: Kick packets are sent explicitly by flushing the queue; TODO: probably fine? + + LOGD("Sending a DC: \"%s\"", StripColorCodes(a_Reason).c_str()); + { - LOGD("Sending a DC: \"%s\"", StripColorCodes(a_Reason).c_str()); - m_Protocol->SendDisconnect(a_Reason); - m_HasSentDC = true; + cCSLock Lock(m_CSLink); + m_OutgoingData.clear(); + m_Protocol.SendDisconnect(a_Reason); + ProcessQueuedOutgoingData(); } + + cRoot::Get()->GetServer()->QueueTask( + [ClientHandle = shared_from_this()] + { + ClientHandle->Destroy(); + } + ); } @@ -2367,7 +2161,7 @@ void cClientHandle::SendDisconnect(const AString & a_Reason) void cClientHandle::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ) { m_LastPlacedSign.Set(a_BlockX, a_BlockY, a_BlockZ); - m_Protocol->SendEditSign(a_BlockX, a_BlockY, a_BlockZ); + m_Protocol.SendEditSign(a_BlockX, a_BlockY, a_BlockZ); } @@ -2376,7 +2170,7 @@ void cClientHandle::SendEditSign(int a_BlockX, int a_BlockY, int a_BlockZ) void cClientHandle::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, int a_Amplifier, short a_Duration) { - m_Protocol->SendEntityEffect(a_Entity, a_EffectID, a_Amplifier, a_Duration); + m_Protocol.SendEntityEffect(a_Entity, a_EffectID, a_Amplifier, a_Duration); } @@ -2385,7 +2179,7 @@ void cClientHandle::SendEntityEffect(const cEntity & a_Entity, int a_EffectID, i void cClientHandle::SendEntityEquipment(const cEntity & a_Entity, short a_SlotNum, const cItem & a_Item) { - m_Protocol->SendEntityEquipment(a_Entity, a_SlotNum, a_Item); + m_Protocol.SendEntityEquipment(a_Entity, a_SlotNum, a_Item); } @@ -2396,7 +2190,7 @@ void cClientHandle::SendEntityHeadLook(const cEntity & a_Entity) { ASSERT(a_Entity.GetUniqueID() != m_Player->GetUniqueID()); // Must not send for self - m_Protocol->SendEntityHeadLook(a_Entity); + m_Protocol.SendEntityHeadLook(a_Entity); } @@ -2407,7 +2201,7 @@ void cClientHandle::SendEntityLook(const cEntity & a_Entity) { ASSERT(a_Entity.GetUniqueID() != m_Player->GetUniqueID()); // Must not send for self - m_Protocol->SendEntityLook(a_Entity); + m_Protocol.SendEntityLook(a_Entity); } @@ -2416,7 +2210,7 @@ void cClientHandle::SendEntityLook(const cEntity & a_Entity) void cClientHandle::SendEntityMetadata(const cEntity & a_Entity) { - m_Protocol->SendEntityMetadata(a_Entity); + m_Protocol.SendEntityMetadata(a_Entity); } @@ -2427,7 +2221,7 @@ void cClientHandle::SendEntityRelMove(const cEntity & a_Entity, char a_RelX, cha { ASSERT(a_Entity.GetUniqueID() != m_Player->GetUniqueID()); // Must not send for self - m_Protocol->SendEntityRelMove(a_Entity, a_RelX, a_RelY, a_RelZ); + m_Protocol.SendEntityRelMove(a_Entity, a_RelX, a_RelY, a_RelZ); } @@ -2438,7 +2232,7 @@ void cClientHandle::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, { ASSERT(a_Entity.GetUniqueID() != m_Player->GetUniqueID()); // Must not send for self - m_Protocol->SendEntityRelMoveLook(a_Entity, a_RelX, a_RelY, a_RelZ); + m_Protocol.SendEntityRelMoveLook(a_Entity, a_RelX, a_RelY, a_RelZ); } @@ -2447,7 +2241,7 @@ void cClientHandle::SendEntityRelMoveLook(const cEntity & a_Entity, char a_RelX, void cClientHandle::SendEntityStatus(const cEntity & a_Entity, char a_Status) { - m_Protocol->SendEntityStatus(a_Entity, a_Status); + m_Protocol.SendEntityStatus(a_Entity, a_Status); } @@ -2456,7 +2250,7 @@ void cClientHandle::SendEntityStatus(const cEntity & a_Entity, char a_Status) void cClientHandle::SendEntityVelocity(const cEntity & a_Entity) { - m_Protocol->SendEntityVelocity(a_Entity); + m_Protocol.SendEntityVelocity(a_Entity); } @@ -2474,7 +2268,7 @@ void cClientHandle::SendExplosion(double a_BlockX, double a_BlockY, double a_Blo // Update the statistics: m_NumExplosionsThisTick++; - m_Protocol->SendExplosion(a_BlockX, a_BlockY, a_BlockZ, a_Radius, a_BlocksAffected, a_PlayerMotion); + m_Protocol.SendExplosion(a_BlockX, a_BlockY, a_BlockZ, a_Radius, a_BlocksAffected, a_PlayerMotion); } @@ -2483,7 +2277,7 @@ void cClientHandle::SendExplosion(double a_BlockX, double a_BlockY, double a_Blo void cClientHandle::SendGameMode(eGameMode a_GameMode) { - m_Protocol->SendGameMode(a_GameMode); + m_Protocol.SendGameMode(a_GameMode); } @@ -2492,7 +2286,7 @@ void cClientHandle::SendGameMode(eGameMode a_GameMode) void cClientHandle::SendHealth(void) { - m_Protocol->SendHealth(); + m_Protocol.SendHealth(); } @@ -2501,7 +2295,7 @@ void cClientHandle::SendHealth(void) void cClientHandle::SendHideTitle(void) { - m_Protocol->SendHideTitle(); + m_Protocol.SendHideTitle(); } @@ -2510,7 +2304,7 @@ void cClientHandle::SendHideTitle(void) void cClientHandle::SendInventorySlot(char a_WindowID, short a_SlotNum, const cItem & a_Item) { - m_Protocol->SendInventorySlot(a_WindowID, a_SlotNum, a_Item); + m_Protocol.SendInventorySlot(a_WindowID, a_SlotNum, a_Item); } @@ -2519,7 +2313,7 @@ void cClientHandle::SendInventorySlot(char a_WindowID, short a_SlotNum, const cI void cClientHandle::SendMapData(const cMap & a_Map, int a_DataStartX, int a_DataStartY) { - m_Protocol->SendMapData(a_Map, a_DataStartX, a_DataStartY); + m_Protocol.SendMapData(a_Map, a_DataStartX, a_DataStartY); } @@ -2528,7 +2322,7 @@ void cClientHandle::SendMapData(const cMap & a_Map, int a_DataStartX, int a_Data void cClientHandle::SendParticleEffect(const AString & a_ParticleName, float a_SrcX, float a_SrcY, float a_SrcZ, float a_OffsetX, float a_OffsetY, float a_OffsetZ, float a_ParticleData, int a_ParticleAmount) { - m_Protocol->SendParticleEffect(a_ParticleName, a_SrcX, a_SrcY, a_SrcZ, a_OffsetX, a_OffsetY, a_OffsetZ, a_ParticleData, a_ParticleAmount); + m_Protocol.SendParticleEffect(a_ParticleName, a_SrcX, a_SrcY, a_SrcZ, a_OffsetX, a_OffsetY, a_OffsetZ, a_ParticleData, a_ParticleAmount); } @@ -2537,7 +2331,7 @@ void cClientHandle::SendParticleEffect(const AString & a_ParticleName, float a_S void cClientHandle::SendParticleEffect(const AString & a_ParticleName, const Vector3f a_Src, const Vector3f a_Offset, float a_ParticleData, int a_ParticleAmount, std::array<int, 2> a_Data) { - m_Protocol->SendParticleEffect(a_ParticleName, a_Src, a_Offset, a_ParticleData, a_ParticleAmount, a_Data); + m_Protocol.SendParticleEffect(a_ParticleName, a_Src, a_Offset, a_ParticleData, a_ParticleAmount, a_Data); } @@ -2546,7 +2340,7 @@ void cClientHandle::SendParticleEffect(const AString & a_ParticleName, const Vec void cClientHandle::SendPickupSpawn(const cPickup & a_Pickup) { - m_Protocol->SendPickupSpawn(a_Pickup); + m_Protocol.SendPickupSpawn(a_Pickup); } @@ -2554,7 +2348,7 @@ void cClientHandle::SendPickupSpawn(const cPickup & a_Pickup) void cClientHandle::SendPaintingSpawn(const cPainting & a_Painting) { - m_Protocol->SendPaintingSpawn(a_Painting); + m_Protocol.SendPaintingSpawn(a_Painting); } @@ -2563,7 +2357,7 @@ void cClientHandle::SendPaintingSpawn(const cPainting & a_Painting) void cClientHandle::SendEntityAnimation(const cEntity & a_Entity, char a_Animation) { - m_Protocol->SendEntityAnimation(a_Entity, a_Animation); + m_Protocol.SendEntityAnimation(a_Entity, a_Animation); } @@ -2572,7 +2366,7 @@ void cClientHandle::SendEntityAnimation(const cEntity & a_Entity, char a_Animati void cClientHandle::SendPlayerAbilities() { - m_Protocol->SendPlayerAbilities(); + m_Protocol.SendPlayerAbilities(); } @@ -2581,7 +2375,7 @@ void cClientHandle::SendPlayerAbilities() void cClientHandle::SendPlayerListAddPlayer(const cPlayer & a_Player) { - m_Protocol->SendPlayerListAddPlayer(a_Player); + m_Protocol.SendPlayerListAddPlayer(a_Player); } @@ -2590,7 +2384,7 @@ void cClientHandle::SendPlayerListAddPlayer(const cPlayer & a_Player) void cClientHandle::SendPlayerListRemovePlayer(const cPlayer & a_Player) { - m_Protocol->SendPlayerListRemovePlayer(a_Player); + m_Protocol.SendPlayerListRemovePlayer(a_Player); } @@ -2599,7 +2393,7 @@ void cClientHandle::SendPlayerListRemovePlayer(const cPlayer & a_Player) void cClientHandle::SendPlayerListUpdateGameMode(const cPlayer & a_Player) { - m_Protocol->SendPlayerListUpdateGameMode(a_Player); + m_Protocol.SendPlayerListUpdateGameMode(a_Player); } @@ -2608,7 +2402,7 @@ void cClientHandle::SendPlayerListUpdateGameMode(const cPlayer & a_Player) void cClientHandle::SendPlayerListUpdatePing(const cPlayer & a_Player) { - m_Protocol->SendPlayerListUpdatePing(a_Player); + m_Protocol.SendPlayerListUpdatePing(a_Player); } @@ -2617,7 +2411,7 @@ void cClientHandle::SendPlayerListUpdatePing(const cPlayer & a_Player) void cClientHandle::SendPlayerListUpdateDisplayName(const cPlayer & a_Player, const AString & a_CustomName) { - m_Protocol->SendPlayerListUpdateDisplayName(a_Player, a_CustomName); + m_Protocol.SendPlayerListUpdateDisplayName(a_Player, a_CustomName); } @@ -2626,7 +2420,7 @@ void cClientHandle::SendPlayerListUpdateDisplayName(const cPlayer & a_Player, co void cClientHandle::SendPlayerMaxSpeed(void) { - m_Protocol->SendPlayerMaxSpeed(); + m_Protocol.SendPlayerMaxSpeed(); } @@ -2640,7 +2434,7 @@ void cClientHandle::SendPlayerMoveLook(void) m_Player->GetPosX(), m_Player->GetPosY(), m_Player->GetPosZ(), m_Player->GetStance(), m_Player->IsOnGround() ? 1 : 0 ); */ - m_Protocol->SendPlayerMoveLook(); + m_Protocol.SendPlayerMoveLook(); } @@ -2649,7 +2443,7 @@ void cClientHandle::SendPlayerMoveLook(void) void cClientHandle::SendPlayerPosition(void) { - m_Protocol->SendPlayerPosition(); + m_Protocol.SendPlayerPosition(); } @@ -2665,10 +2459,10 @@ void cClientHandle::SendPlayerSpawn(const cPlayer & a_Player) } LOGD("Spawning player \"%s\" on client \"%s\" @ %s", - a_Player.GetName().c_str(), GetPlayer()->GetName().c_str(), GetIPString().c_str() + a_Player.GetName().c_str(), m_Player->GetName().c_str(), GetIPString().c_str() ); - m_Protocol->SendPlayerSpawn(a_Player); + m_Protocol.SendPlayerSpawn(a_Player); } @@ -2677,7 +2471,7 @@ void cClientHandle::SendPlayerSpawn(const cPlayer & a_Player) void cClientHandle::SendPluginMessage(const AString & a_Channel, const AString & a_Message) { - m_Protocol->SendPluginMessage(a_Channel, a_Message); + m_Protocol.SendPluginMessage(a_Channel, a_Message); } @@ -2686,7 +2480,7 @@ void cClientHandle::SendPluginMessage(const AString & a_Channel, const AString & void cClientHandle::SendRemoveEntityEffect(const cEntity & a_Entity, int a_EffectID) { - m_Protocol->SendRemoveEntityEffect(a_Entity, a_EffectID); + m_Protocol.SendRemoveEntityEffect(a_Entity, a_EffectID); } @@ -2695,7 +2489,7 @@ void cClientHandle::SendRemoveEntityEffect(const cEntity & a_Entity, int a_Effec void cClientHandle::SendResetTitle() { - m_Protocol->SendResetTitle(); + m_Protocol.SendResetTitle(); } @@ -2704,7 +2498,7 @@ void cClientHandle::SendResetTitle() void cClientHandle::SendRespawn(eDimension a_Dimension, bool a_ShouldIgnoreDimensionChecks) { - m_Protocol->SendRespawn(a_Dimension, a_ShouldIgnoreDimensionChecks); + m_Protocol.SendRespawn(a_Dimension, a_ShouldIgnoreDimensionChecks); } @@ -2713,7 +2507,7 @@ void cClientHandle::SendRespawn(eDimension a_Dimension, bool a_ShouldIgnoreDimen void cClientHandle::SendExperience(void) { - m_Protocol->SendExperience(); + m_Protocol.SendExperience(); } @@ -2722,7 +2516,7 @@ void cClientHandle::SendExperience(void) void cClientHandle::SendExperienceOrb(const cExpOrb & a_ExpOrb) { - m_Protocol->SendExperienceOrb(a_ExpOrb); + m_Protocol.SendExperienceOrb(a_ExpOrb); } @@ -2731,7 +2525,7 @@ void cClientHandle::SendExperienceOrb(const cExpOrb & a_ExpOrb) void cClientHandle::SendScoreboardObjective(const AString & a_Name, const AString & a_DisplayName, Byte a_Mode) { - m_Protocol->SendScoreboardObjective(a_Name, a_DisplayName, a_Mode); + m_Protocol.SendScoreboardObjective(a_Name, a_DisplayName, a_Mode); } @@ -2740,7 +2534,7 @@ void cClientHandle::SendScoreboardObjective(const AString & a_Name, const AStrin void cClientHandle::SendScoreUpdate(const AString & a_Objective, const AString & a_Player, cObjective::Score a_Score, Byte a_Mode) { - m_Protocol->SendScoreUpdate(a_Objective, a_Player, a_Score, a_Mode); + m_Protocol.SendScoreUpdate(a_Objective, a_Player, a_Score, a_Mode); } @@ -2749,7 +2543,7 @@ void cClientHandle::SendScoreUpdate(const AString & a_Objective, const AString & void cClientHandle::SendDisplayObjective(const AString & a_Objective, cScoreboard::eDisplaySlot a_Display) { - m_Protocol->SendDisplayObjective(a_Objective, a_Display); + m_Protocol.SendDisplayObjective(a_Objective, a_Display); } @@ -2758,7 +2552,7 @@ void cClientHandle::SendDisplayObjective(const AString & a_Objective, cScoreboar void cClientHandle::SendSetSubTitle(const cCompositeChat & a_SubTitle) { - m_Protocol->SendSetSubTitle(a_SubTitle); + m_Protocol.SendSetSubTitle(a_SubTitle); } @@ -2767,7 +2561,7 @@ void cClientHandle::SendSetSubTitle(const cCompositeChat & a_SubTitle) void cClientHandle::SendSetRawSubTitle(const AString & a_SubTitle) { - m_Protocol->SendSetRawSubTitle(a_SubTitle); + m_Protocol.SendSetRawSubTitle(a_SubTitle); } @@ -2776,7 +2570,7 @@ void cClientHandle::SendSetRawSubTitle(const AString & a_SubTitle) void cClientHandle::SendSetTitle(const cCompositeChat & a_Title) { - m_Protocol->SendSetTitle(a_Title); + m_Protocol.SendSetTitle(a_Title); } @@ -2785,7 +2579,7 @@ void cClientHandle::SendSetTitle(const cCompositeChat & a_Title) void cClientHandle::SendSetRawTitle(const AString & a_Title) { - m_Protocol->SendSetRawTitle(a_Title); + m_Protocol.SendSetRawTitle(a_Title); } @@ -2794,7 +2588,7 @@ void cClientHandle::SendSetRawTitle(const AString & a_Title) void cClientHandle::SendSoundEffect(const AString & a_SoundName, double a_X, double a_Y, double a_Z, float a_Volume, float a_Pitch) { - m_Protocol->SendSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch); + m_Protocol.SendSoundEffect(a_SoundName, a_X, a_Y, a_Z, a_Volume, a_Pitch); } @@ -2803,7 +2597,7 @@ void cClientHandle::SendSoundEffect(const AString & a_SoundName, double a_X, dou void cClientHandle::SendSoundParticleEffect(const EffectID a_EffectID, int a_SrcX, int a_SrcY, int a_SrcZ, int a_Data) { - m_Protocol->SendSoundParticleEffect(a_EffectID, a_SrcX, a_SrcY, a_SrcZ, a_Data); + m_Protocol.SendSoundParticleEffect(a_EffectID, a_SrcX, a_SrcY, a_SrcZ, a_Data); } @@ -2812,7 +2606,7 @@ void cClientHandle::SendSoundParticleEffect(const EffectID a_EffectID, int a_Src void cClientHandle::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock) { - m_Protocol->SendSpawnFallingBlock(a_FallingBlock); + m_Protocol.SendSpawnFallingBlock(a_FallingBlock); } @@ -2821,7 +2615,7 @@ void cClientHandle::SendSpawnFallingBlock(const cFallingBlock & a_FallingBlock) void cClientHandle::SendSpawnMob(const cMonster & a_Mob) { - m_Protocol->SendSpawnMob(a_Mob); + m_Protocol.SendSpawnMob(a_Mob); } @@ -2830,7 +2624,7 @@ void cClientHandle::SendSpawnMob(const cMonster & a_Mob) void cClientHandle::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, int a_ObjectData, Byte a_Yaw, Byte a_Pitch) { - m_Protocol->SendSpawnObject(a_Entity, a_ObjectType, a_ObjectData, a_Yaw, a_Pitch); + m_Protocol.SendSpawnObject(a_Entity, a_ObjectType, a_ObjectData, a_Yaw, a_Pitch); } @@ -2839,7 +2633,7 @@ void cClientHandle::SendSpawnObject(const cEntity & a_Entity, char a_ObjectType, void cClientHandle::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleType, char a_VehicleSubType) // VehicleSubType is specific to Minecarts { - m_Protocol->SendSpawnVehicle(a_Vehicle, a_VehicleType, a_VehicleSubType); + m_Protocol.SendSpawnVehicle(a_Vehicle, a_VehicleType, a_VehicleSubType); } @@ -2848,7 +2642,7 @@ void cClientHandle::SendSpawnVehicle(const cEntity & a_Vehicle, char a_VehicleTy void cClientHandle::SendStatistics(const cStatManager & a_Manager) { - m_Protocol->SendStatistics(a_Manager); + m_Protocol.SendStatistics(a_Manager); } @@ -2857,7 +2651,7 @@ void cClientHandle::SendStatistics(const cStatManager & a_Manager) void cClientHandle::SendTabCompletionResults(const AStringVector & a_Results) { - m_Protocol->SendTabCompletionResults(a_Results); + m_Protocol.SendTabCompletionResults(a_Results); } @@ -2866,7 +2660,7 @@ void cClientHandle::SendTabCompletionResults(const AStringVector & a_Results) void cClientHandle::SendTeleportEntity(const cEntity & a_Entity) { - m_Protocol->SendTeleportEntity(a_Entity); + m_Protocol.SendTeleportEntity(a_Entity); } @@ -2875,7 +2669,7 @@ void cClientHandle::SendTeleportEntity(const cEntity & a_Entity) void cClientHandle::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ) { - m_Protocol->SendThunderbolt(a_BlockX, a_BlockY, a_BlockZ); + m_Protocol.SendThunderbolt(a_BlockX, a_BlockY, a_BlockZ); } @@ -2884,7 +2678,7 @@ void cClientHandle::SendThunderbolt(int a_BlockX, int a_BlockY, int a_BlockZ) void cClientHandle::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_FadeOutTicks) { - m_Protocol->SendTitleTimes(a_FadeInTicks, a_DisplayTicks, a_FadeOutTicks); + m_Protocol.SendTitleTimes(a_FadeInTicks, a_DisplayTicks, a_FadeOutTicks); } @@ -2893,22 +2687,7 @@ void cClientHandle::SendTitleTimes(int a_FadeInTicks, int a_DisplayTicks, int a_ void cClientHandle::SendTimeUpdate(Int64 a_WorldAge, Int64 a_TimeOfDay, bool a_DoDaylightCycle) { - m_Protocol->SendTimeUpdate(a_WorldAge, a_TimeOfDay, a_DoDaylightCycle); -} - - - - - -void cClientHandle::SendUnloadChunk(int a_ChunkX, int a_ChunkZ) -{ - // Remove the chunk from the list of chunks sent to the client: - { - cCSLock Lock(m_CSChunkLists); - m_SentChunks.remove(cChunkCoords(a_ChunkX, a_ChunkZ)); - } - - m_Protocol->SendUnloadChunk(a_ChunkX, a_ChunkZ); + m_Protocol.SendTimeUpdate(a_WorldAge, a_TimeOfDay, a_DoDaylightCycle); } @@ -2916,7 +2695,7 @@ void cClientHandle::SendUnloadChunk(int a_ChunkX, int a_ChunkZ) void cClientHandle::SendUpdateBlockEntity(cBlockEntity & a_BlockEntity) { - m_Protocol->SendUpdateBlockEntity(a_BlockEntity); + m_Protocol.SendUpdateBlockEntity(a_BlockEntity); } @@ -2928,7 +2707,7 @@ void cClientHandle::SendUpdateSign( const AString & a_Line1, const AString & a_Line2, const AString & a_Line3, const AString & a_Line4 ) { - m_Protocol->SendUpdateSign( + m_Protocol.SendUpdateSign( a_BlockX, a_BlockY, a_BlockZ, a_Line1, a_Line2, a_Line3, a_Line4 ); @@ -2940,7 +2719,7 @@ void cClientHandle::SendUpdateSign( void cClientHandle::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_BlockY, int a_BlockZ) { - m_Protocol->SendUseBed(a_Entity, a_BlockX, a_BlockY, a_BlockZ); + m_Protocol.SendUseBed(a_Entity, a_BlockX, a_BlockY, a_BlockZ); } @@ -2948,7 +2727,7 @@ void cClientHandle::SendUseBed(const cEntity & a_Entity, int a_BlockX, int a_Blo void cClientHandle::SendWeather(eWeather a_Weather) { - m_Protocol->SendWeather(a_Weather); + m_Protocol.SendWeather(a_Weather); } @@ -2957,7 +2736,7 @@ void cClientHandle::SendWeather(eWeather a_Weather) void cClientHandle::SendWholeInventory(const cWindow & a_Window) { - m_Protocol->SendWholeInventory(a_Window); + m_Protocol.SendWholeInventory(a_Window); } @@ -2966,7 +2745,7 @@ void cClientHandle::SendWholeInventory(const cWindow & a_Window) void cClientHandle::SendWindowClose(const cWindow & a_Window) { - m_Protocol->SendWindowClose(a_Window); + m_Protocol.SendWindowClose(a_Window); } @@ -2975,7 +2754,7 @@ void cClientHandle::SendWindowClose(const cWindow & a_Window) void cClientHandle::SendWindowOpen(const cWindow & a_Window) { - m_Protocol->SendWindowOpen(a_Window); + m_Protocol.SendWindowOpen(a_Window); } @@ -2984,7 +2763,7 @@ void cClientHandle::SendWindowOpen(const cWindow & a_Window) void cClientHandle::SendWindowProperty(const cWindow & a_Window, short a_Property, short a_Value) { - m_Protocol->SendWindowProperty(a_Window, a_Property, a_Value); + m_Protocol.SendWindowProperty(a_Window, a_Property, a_Value); } @@ -3011,15 +2790,19 @@ void cClientHandle::SetUsername( const AString & a_Username) void cClientHandle::SetViewDistance(int a_ViewDistance) { + ASSERT(cRoot::Get()->GetServer()->IsInTickThread()); + ASSERT(m_Player != nullptr); + m_RequestedViewDistance = a_ViewDistance; LOGD("%s is requesting ViewDistance of %d!", GetUsername().c_str(), m_RequestedViewDistance); - // Set the current view distance based on the requested VD and world max VD: - cWorld * world = m_Player->GetWorld(); - if (world != nullptr) - { - m_CurrentViewDistance = Clamp(a_ViewDistance, cClientHandle::MIN_VIEW_DISTANCE, world->GetMaxViewDistance()); - } + cWorld * World = m_Player->GetWorld(); + World->QueueTask( + [a_ViewDistance, ClientHandle = shared_from_this()](cWorld & a_World) + { + ClientHandle->m_CurrentViewDistance = Clamp(a_ViewDistance, cClientHandle::MIN_VIEW_DISTANCE, a_World.GetMaxViewDistance()); + } + ); } @@ -3035,40 +2818,6 @@ bool cClientHandle::HasPluginChannel(const AString & a_PluginChannel) -bool cClientHandle::WantsSendChunk(int a_ChunkX, int a_ChunkZ) -{ - if (m_State >= csDestroying) - { - return false; - } - - cCSLock Lock(m_CSChunkLists); - return m_ChunksToSend.find(cChunkCoords(a_ChunkX, a_ChunkZ)) != m_ChunksToSend.end(); -} - - - - - -void cClientHandle::AddWantedChunk(int a_ChunkX, int a_ChunkZ) -{ - if (m_State >= csDestroying) - { - return; - } - - LOGD("Adding chunk [%d, %d] to wanted chunks for client %p", a_ChunkX, a_ChunkZ, static_cast<void *>(this)); - cCSLock Lock(m_CSChunkLists); - if (m_ChunksToSend.find(cChunkCoords(a_ChunkX, a_ChunkZ)) == m_ChunksToSend.end()) - { - m_ChunksToSend.emplace(a_ChunkX, a_ChunkZ); - } -} - - - - - void cClientHandle::PacketBufferFull(void) { // Too much data in the incoming queue, the server is probably too busy, kick the client: @@ -3107,33 +2856,18 @@ void cClientHandle::SocketClosed(void) { // The socket has been closed for any reason - if (!m_Username.empty()) // Ignore client pings - { - LOGD("Client %s @ %s disconnected", m_Username.c_str(), m_IPString.c_str()); - cRoot::Get()->GetPluginManager()->CallHookDisconnect(*this, "Player disconnected"); - } - if (m_Player != nullptr) - { - m_Player->GetWorld()->QueueTask([this](cWorld & World) + cRoot::Get()->GetServer()->QueueTask( + [ClientHandle = shared_from_this()] { - UNUSED(World); - Destroy(); - }); - } - else - { - Destroy(); - } -} - - - - + if (!ClientHandle->GetUsername().empty()) // Ignore client pings + { + LOGD("Client %s @ %s disconnected", ClientHandle->GetUsername().c_str(), ClientHandle->GetIPString().c_str()); + cRoot::Get()->GetPluginManager()->CallHookDisconnect(*ClientHandle, "Player disconnected"); + } -void cClientHandle::SetSelf(cClientHandlePtr a_Self) -{ - ASSERT(m_Self == nullptr); - m_Self = a_Self; + ClientHandle->Destroy(); + } + ); } @@ -3142,6 +2876,7 @@ void cClientHandle::SetSelf(cClientHandlePtr a_Self) void cClientHandle::OnLinkCreated(cTCPLinkPtr a_Link) { + cCSLock Lock(m_CSLink); m_Link = a_Link; } @@ -3165,10 +2900,6 @@ void cClientHandle::OnReceivedData(const char * a_Data, size_t a_Length) void cClientHandle::OnRemoteClosed(void) { - { - cCSLock Lock(m_CSOutgoingData); - m_Link.reset(); - } SocketClosed(); } @@ -3181,10 +2912,6 @@ void cClientHandle::OnError(int a_ErrorCode, const AString & a_ErrorMsg) LOGD("An error has occurred on client link for %s @ %s: %d (%s). Client disconnected.", m_Username.c_str(), m_IPString.c_str(), a_ErrorCode, a_ErrorMsg.c_str() ); - { - cCSLock Lock(m_CSOutgoingData); - m_Link.reset(); - } SocketClosed(); } |