beginning drafting of tcp server

inc/tcp_server.hpp

@@ -0,0 +1,25 @@
+#pragma once
+
+#include <WinSock2.h>
+#include <pthread.h>
+#include "util.hpp"
+
+typedef void (*data_received_cb_t)(SOCKET client, array<char> data);
+
+struct tcpserver {
+    SOCKET sock;
+    array<SOCKET> client_socks;
+    int max_connections;
+    addrinfo *addr;
+    array<data_received_cb_t> cbs;
+
+    pthread_mutex_t lock;
+    pthread_cond_t connection_ended;
+    pthread_cond_t stop_requested;
+};
+
+bool create_server(tcpserver *server_out, const char* hostname, int port);
+void start_server(tcpserver &s);
+void stop_server(tcpserver &s);
+void send_data(tcpserver &s, SOCKET client, array<char> data);
+void register_recv_cb(tcpserver &s, data_received_cb_t cb);