src/server/server.h

   1 #ifndef _SERVER_H_
   2 #define _SERVER_H_
   3
   4 #include <pthread.h>
   5 #include <netinet/in.h>
   6 #include <dragontype/number.h>
   7 #include <dragontype/list.h>
   8 #include "client/client_commands.h"
   9 #include "server/database.h"
  10 #include "server/server_commands.h"
  11 #include "network.h"
  12
  13 typedef struct
  14 {
  15         int sockfd;                                             // TCP socket to accept new connections
  16         pthread_rwlock_t clients_rwlck; // lock to protect client list
  17         List clients;                                   // Client * -> NULL map with all connected clients
  18         pthread_rwlock_t players_rwlck; // lock to protect player list
  19         List players;                                   // char * -> Client * map with clients that have finished auth
  20         sqlite3 *db;
  21         struct {
  22                 u32 simulation_distance;        // perimeter of the cube that players can see blocks in is simulation_distance * 2 + 1
  23         } config;                                               // configuration, ToDo: read from config file
  24 } Server;
  25
  26 typedef struct Client
  27 {
  28         int fd;                                         // TCP socket for connection
  29         pthread_mutex_t mtx;            // mutex to protect socket
  30         ClientState state;                      // state of the client (created, auth, active, disconnected)
  31         char *address;                          // address string to use as identifier for log messages until auth is completed
  32         char *name;                                     // player name (must be unique)
  33         Server *server;                         // pointer to server object (essentially the same for all clients)
  34         pthread_t net_thread;           // reciever thread ID
  35         v3f64 pos;                                      // player position
  36 } Client;
  37
  38 typedef enum
  39 {
  40         DISCO_NO_REMOVE = 0x01,         // don't remove from client and player list (to save extra work on server shutdown)
  41         DISCO_NO_SEND = 0x02,           // don't notfiy client about the disconnect (if client sent disconnect themselves or the TCP connection died)
  42         DISCO_NO_MESSAGE = 0x04,        // don't log a message about the disconnect (used on server shutdown)
  43         DISCO_NO_JOIN = 0x08,           // don't wait for the reciever thread to finish (if TCP connection death was reported by reciever thread, the thread is already dead)
  44 } DiscoFlag;
  45
  46 void server_disconnect_client(Client *client, int flags, const char *detail);   // disconnect a client with various options an an optional detail message (flags: DiscoFlag bitmask)
  47
  48 #endif