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);

inc/util.hpp

@@ -1,13 +1,18 @@
 #pragma once
 
+#include <cstdlib>
 #include <stdio.h>
 
+typedef unsigned int uint;
+
 template<class T> struct array {
     T* data;
     size_t len;
+    size_t cap;
     inline T& operator[](int i) { return data[i]; }
 };
 
-typedef unsigned int uint;
-
+template<class T> void append(array<T>& a, T el);
+template<class T> T pop(array<T>& a);
+template<class T> void resize(array<T>& a, size_t new_size);
 bool read_file(array<char>* out, const char* filepath);