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NetworkConfig.h

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+/**
+ * Think of this as the "Rulebook".
+ * Instead of teaching Windows and Mac rules to the Server and the Client separately, we put the rules in one book.
+ * Anyone who needs to know the rules just reads this book (#include "NetworkConfig.h").
+ */
+
+// This is a "Do Not Duplicate" sticker.
+// It ensures this file is only read once, even if multiple files include it.
+// Can use a '#pragma once' but I prefer this old-style one.
+#ifndef IOVI_NETWORK_NETWORK_CONFIG_H
+#define IOVI_NETWORK_NETWORK_CONFIG_H
+
+/**
+ * THE TRANSLATOR (Cross-Platform Setup)
+ * Windows and Mac/Linux speak different "socket" languages.
+ * This block makes sure our code understands both
+ */
+#ifdef _WIN32
+    #include <winsock2.h>
+    #include <ws2tcpip.h>
+    #define CLOSE_SOCKET closesocket
+    #define SOCKET_TYPE SOCKET
+#else
+    #include <sys/socket.h>
+    #include <netinet/in.h>
+    #include <unistd.h>
+    #include <arpa/inet.h>
+    #define CLOSE_SOCKET close
+    #define SOCKET_TYPE int
+    #define INVALID_SOCKET (-1)
+    #define SOCKET_ERROR (-1)
+#endif
+
+/**
+ * A helper to automatically turn on networking when the program starts.
+ * For non-Windows systems does nothing.
+ */
+struct NetworkStarter {
+    NetworkStarter() {
+#ifdef _WIN32
+        WSADATA wsaData;
+        WSAStartup(MAKEWORD(2, 2), &wsaData);
+#endif
+    }
+    ~NetworkStarter() {
+#ifdef _WIN32
+        WSACleanup();
+#endif
+    }
+};
+
+#endif // IOVI_NETWORK_NETWORK_CONFIG_H