]> git.lizzy.rs Git - minetest.git/blobdiff - src/server.h
Server: Only send node removal/addition to client if client's player is near it....
[minetest.git] / src / server.h
index fddb097d027b16f6608d67d015bbcf58ec0b3376..4a757ad73d9b552f9131f3aa4fc99d513ae0a6a5 100644 (file)
@@ -29,14 +29,9 @@ with this program; if not, write to the Free Software Foundation, Inc.,
 #include "common_irrlicht.h"
 #include <string>
 #include "utility.h"
-
-#ifdef _WIN32
-       #include <windows.h>
-       #define sleep_ms(x) Sleep(x)
-#else
-       #include <unistd.h>
-       #define sleep_ms(x) usleep(x*1000)
-#endif
+#include "porting.h"
+#include "map.h"
+#include "inventory.h"
 
 struct QueuedBlockEmerge
 {
@@ -238,20 +233,14 @@ class RemoteClient
        u8 pending_serialization_version;
 
        RemoteClient():
-               m_time_from_building(9999)
+               m_time_from_building(9999),
+               m_excess_gotblocks(0)
        {
                peer_id = 0;
                serialization_version = SER_FMT_VER_INVALID;
                pending_serialization_version = SER_FMT_VER_INVALID;
                m_nearest_unsent_d = 0;
                m_nearest_unsent_reset_timer = 0.0;
-
-               m_blocks_sent_mutex.Init();
-               m_blocks_sending_mutex.Init();
-               
-               m_dig_mutex.Init();
-               m_dig_time_remaining = 0;
-               m_dig_tool_item = -1;
        }
        ~RemoteClient()
        {
@@ -285,7 +274,6 @@ class RemoteClient
 
        s32 SendingCount()
        {
-               JMutexAutoLock lock(m_blocks_sending_mutex);
                return m_blocks_sending.size();
        }
        
@@ -296,40 +284,31 @@ class RemoteClient
 
        void PrintInfo(std::ostream &o)
        {
-               JMutexAutoLock l2(m_blocks_sent_mutex);
-               JMutexAutoLock l3(m_blocks_sending_mutex);
                o<<"RemoteClient "<<peer_id<<": "
                                <<", m_blocks_sent.size()="<<m_blocks_sent.size()
                                <<", m_blocks_sending.size()="<<m_blocks_sending.size()
                                <<", m_nearest_unsent_d="<<m_nearest_unsent_d
+                               <<", m_excess_gotblocks="<<m_excess_gotblocks
                                <<std::endl;
+               m_excess_gotblocks = 0;
        }
 
        // Time from last placing or removing blocks
-       MutexedVariable<float> m_time_from_building;
+       float m_time_from_building;
        
-       JMutex m_dig_mutex;
+       /*JMutex m_dig_mutex;
        float m_dig_time_remaining;
        // -1 = not digging
        s16 m_dig_tool_item;
-       v3s16 m_dig_position;
-
-private:
+       v3s16 m_dig_position;*/
+       
        /*
-               All members that are accessed by many threads should
-               obviously be behind a mutex. The threads include:
-               - main thread (calls step())
-               - server thread (calls AsyncRunStep() and Receive())
-               - emerge thread 
+               List of active objects that the client knows of.
+               Value is dummy.
        */
-       
-       //TODO: core::map<v3s16, MapBlock*> m_active_blocks
-       //NOTE: Not here, it should be server-wide!
-
-       // Number of blocks in the emerge queue that have this client as
-       // a receiver. Used for throttling network usage.
-       //MutexedVariable<s16> m_num_blocks_in_emerge_queue;
+       core::map<u16, bool> m_known_objects;
 
+private:
        /*
                Blocks that have been sent to client.
                - These don't have to be sent again.
@@ -343,7 +322,7 @@ class RemoteClient
        s16 m_nearest_unsent_d;
        v3s16 m_last_center;
        float m_nearest_unsent_reset_timer;
-       JMutex m_blocks_sent_mutex;
+       
        /*
                Blocks that are currently on the line.
                This is used for throttling the sending of blocks.
@@ -353,28 +332,27 @@ class RemoteClient
                Value is time from sending. (not used at the moment)
        */
        core::map<v3s16, float> m_blocks_sending;
-       JMutex m_blocks_sending_mutex;
-};
 
-/*struct ServerSettings
-{
-       ServerSettings()
-       {
-               creative_mode = false;
-       }
-       bool creative_mode;
-};*/
+       /*
+               Count of excess GotBlocks().
+               There is an excess amount because the client sometimes
+               gets a block so late that the server sends it again,
+               and the client then sends two GOTBLOCKs.
+               This is resetted by PrintInfo()
+       */
+       u32 m_excess_gotblocks;
+};
 
-class Server : public con::PeerHandler
+class Server : public con::PeerHandler, public MapEventReceiver,
+               public InventoryManager
 {
 public:
        /*
                NOTE: Every public method should be thread-safe
        */
+
        Server(
-               std::string mapsavedir,
-               HMParams hm_params,
-               MapParams map_params
+               std::string mapsavedir
        );
        ~Server();
        void start(unsigned short port);
@@ -387,23 +365,35 @@ class Server : public con::PeerHandler
        void Receive();
        void ProcessData(u8 *data, u32 datasize, u16 peer_id);
 
-       /*void Send(u16 peer_id, u16 channelnum,
-                       SharedBuffer<u8> data, bool reliable);*/
+       core::list<PlayerInfo> getPlayerInfo();
 
-       // Environment and Connection must be locked when called
-       void SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver);
-       //TODO: Sending of many blocks in a single packet
-       
-       // Environment and Connection must be locked when called
-       //void SendSectorMeta(u16 peer_id, core::list<v2s16> ps, u8 ver);
+       u32 getDayNightRatio()
+       {
+               return time_to_daynight_ratio(m_time_of_day.get());
+       }
 
-       core::list<PlayerInfo> getPlayerInfo();
+       bool getShutdownRequested()
+       {
+               return m_shutdown_requested.get();
+       }
        
+       /*
+               Shall be called with the environment locked.
+               This is accessed by the map, which is inside the environment,
+               so it shouldn't be a problem.
+       */
+       void onMapEditEvent(MapEditEvent *event);
+
+       /*
+               Shall be called with the environment and the connection locked.
+       */
+       Inventory* getInventory(InventoryContext *c, std::string id);
+       void inventoryModified(InventoryContext *c, std::string id);
+
 private:
 
        // Virtual methods from con::PeerHandler.
        // As of now, these create and remove clients and players.
-       // TODO: Make it possible to leave players on server.
        void peerAdded(con::Peer *peer);
        void deletingPeer(con::Peer *peer, bool timeout);
        
@@ -411,11 +401,38 @@ class Server : public con::PeerHandler
        void SendObjectData(float dtime);
        void SendPlayerInfos();
        void SendInventory(u16 peer_id);
+       void SendChatMessage(u16 peer_id, const std::wstring &message);
+       void BroadcastChatMessage(const std::wstring &message);
+       /*
+               Send a node removal/addition event to all clients except ignore_id.
+               Additionally, if far_players!=NULL, players further away than
+               far_d_nodes are ignored and their peer_ids are added to far_players
+       */
+       void sendRemoveNode(v3s16 p, u16 ignore_id=0,
+                       core::list<u16> *far_players=NULL, float far_d_nodes=100);
+       void sendAddNode(v3s16 p, MapNode n, u16 ignore_id=0,
+                       core::list<u16> *far_players=NULL, float far_d_nodes=100);
+       
+       // Environment and Connection must be locked when  called
+       void SendBlockNoLock(u16 peer_id, MapBlock *block, u8 ver);
+       
        // Sends blocks to clients
        void SendBlocks(float dtime);
        
        // When called, connection mutex should be locked
        RemoteClient* getClient(u16 peer_id);
+       
+       // Connection must be locked when called
+       std::wstring getStatusString();
+       
+       /*
+               Get a player from memory or creates one.
+               If player is already connected, return NULL
+
+               Call with env and con locked.
+       */
+       Player *emergePlayer(const char *name, const char *password,
+                       u16 peer_id);
 
        /*
                Update water pressure.
@@ -423,10 +440,16 @@ class Server : public con::PeerHandler
 
                environment has to be locked when calling.
        */
-       void UpdateBlockWaterPressure(MapBlock *block,
-                       core::map<v3s16, MapBlock*> &modified_blocks);
+       /*void UpdateBlockWaterPressure(MapBlock *block,
+                       core::map<v3s16, MapBlock*> &modified_blocks);*/
+       
+       // Locks environment and connection by its own
+       struct PeerChange;
+       void handlePeerChange(PeerChange &c);
+       void handlePeerChanges();
        
-       float m_flowwater_timer;
+       //float m_flowwater_timer;
+       float m_liquid_transform_timer;
        float m_print_info_timer;
        float m_objectdata_timer;
        float m_emergethread_trigger_timer;
@@ -435,7 +458,7 @@ class Server : public con::PeerHandler
        // NOTE: If connection and environment are both to be locked,
        // environment shall be locked first.
        JMutex m_env_mutex;
-       Environment m_env;
+       ServerEnvironment m_env;
 
        JMutex m_con_mutex;
        con::Connection m_con;
@@ -450,7 +473,7 @@ class Server : public con::PeerHandler
        BlockEmergeQueue m_emerge_queue;
        
        // Nodes that are destinations of flowing liquid at the moment
-       core::map<v3s16, u8> m_flow_active_nodes;
+       //core::map<v3s16, u8> m_flow_active_nodes;
 
        // 0-23999
        MutexedVariable<u32> m_time_of_day;
@@ -458,9 +481,55 @@ class Server : public con::PeerHandler
        float m_time_counter;
        float m_time_of_day_send_timer;
        
+       MutexedVariable<double> m_uptime;
+       
+       enum PeerChangeType
+       {
+               PEER_ADDED,
+               PEER_REMOVED
+       };
+
+       struct PeerChange
+       {
+               PeerChangeType type;
+               u16 peer_id;
+               bool timeout;
+       };
+       
+       Queue<PeerChange> m_peer_change_queue;
+
+       std::string m_mapsavedir;
+
+       MutexedVariable<bool> m_shutdown_requested;
+       
+       /*
+               Queue of map edits from the environment for sending to the clients
+               This is behind m_env_mutex
+       */
+       Queue<MapEditEvent*> m_unsent_map_edit_queue;
+       /*
+               Set to true when the server itself is modifying the map and does
+               all sending of information by itself.
+               This is behind m_env_mutex
+       */
+       bool m_ignore_map_edit_events;
+       /*
+               If set to !=0, the incoming MapEditEvents are modified to have
+               this peed id as the disabled recipient
+               This is behind m_env_mutex
+       */
+       u16 m_ignore_map_edit_events_peer_id;
+
        friend class EmergeThread;
        friend class RemoteClient;
 };
 
+/*
+       Runs a simple dedicated server loop.
+
+       Shuts down when run is set to false.
+*/
+void dedicated_server_loop(Server &server, bool &run);
+
 #endif