diff -r 550083f61a0e -r 6e01c5134eb5 project_files/frontlib/socket.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/frontlib/socket.h	Fri Nov 02 20:57:20 2012 +0100
@@ -0,0 +1,91 @@
+/*
+ * Hedgewars, a free turn based strategy game
+ * Copyright (C) 2012 Simeon Maxein <smaxein@googlemail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+/*
+ * Sockets for TCP networking.
+ *
+ * This layer offers some functionality over what SDL_net offers directly: listening
+ * sockets (called acceptors here) can be bound to port 0, which will make them listen
+ * on a random unused port, if one can be found. To support this feature, you can also
+ * query the local port that an acceptor is listening on.
+ *
+ * Further, we support nonblocking reads here.
+ */
+
+#ifndef SOCKET_H_
+#define SOCKET_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+typedef struct _flib_tcpsocket flib_tcpsocket;
+typedef struct _flib_acceptor flib_acceptor;
+
+/**
+ * Create a new acceptor which will listen for incoming TCP connections
+ * on the given port. If port is 0, this will listen on a random
+ * unused port which can then be queried with flib_acceptor_listenport.
+ *
+ * Returns NULL on error.
+ */
+flib_acceptor *flib_acceptor_create(uint16_t port);
+
+/**
+ * Return the port on which the acceptor is listening.
+ */
+uint16_t flib_acceptor_listenport(flib_acceptor *acceptor);
+
+/**
+ * Close the acceptor and free its memory. NULL-safe.
+ */
+void flib_acceptor_close(flib_acceptor *acceptor);
+
+/**
+ * Try to accept a connection from an acceptor (listening socket).
+ * if localOnly is true, this will only accept connections which came from 127.0.0.1
+ * Returns NULL if nothing can be accepted.
+ */
+flib_tcpsocket *flib_socket_accept(flib_acceptor *acceptor, bool localOnly);
+
+/**
+ * Try to connect to the server at the given address.
+ */
+flib_tcpsocket *flib_socket_connect(const char *host, uint16_t port);
+
+/**
+ * Close the socket and free its memory. NULL-safe.
+ */
+void flib_socket_close(flib_tcpsocket *socket);
+
+/**
+ * Attempt to receive up to maxlen bytes from the socket, but does not
+ * block if nothing is available.
+ * Returns the ammount of data received, 0 if there was nothing to receive,
+ * or a negative number if the connection was closed or an error occurred.
+ */
+int flib_socket_nbrecv(flib_tcpsocket *sock, void *data, int maxlen);
+
+/**
+ * Blocking send all the data in the data buffer. Returns the actual ammount
+ * of data sent, or a negative value on error. If the value returned here
+ * is less than len, either the connection closed or an error occurred.
+ */
+int flib_socket_send(flib_tcpsocket *sock, const void *data, int len);
+
+#endif /* SOCKET_H_ */