(svn r15163) -Change/Fix: use a non-blocking method to resolve the hostname and connect to game servers.

1 files changed, 103 insertions, 0 deletions

diff --git a/src/network/core/address.h b/src/network/core/address.h
new file mode 100644
index 000000000..62e79f3de
--- /dev/null
+++ b/src/network/core/address.h
@@ -0,0 +1,103 @@
+/* $Id$ */
+
+/** @file core/address.h Wrapper for network addresses. */
+
+#ifndef NETWORK_ADDRESS_H
+#define NETWORK_ADDRESS_H
+
+#ifdef ENABLE_NETWORK
+
+#include "os_abstraction.h"
+
+/**
+ * Wrapper for (un)resolved network addresses; there's no reason to transform
+ * a numeric IP to a string and then back again to pass it to functions. It
+ * furthermore allows easier delaying of the hostname lookup.
+ */
+class NetworkAddress {
+private:
+	bool resolved;  ///< Has the IP address been resolved
+	char *hostname; ///< The hostname, NULL if there isn't one
+	uint32 ip;      ///< The resolved IP address
+	uint16 port;    ///< The port associated with the address
+
+public:
+	/**
+	 * Create a network address based on a resolved IP and port
+	 * @param ip the resolved ip
+	 * @param port the port
+	 */
+	NetworkAddress(in_addr_t ip, uint16 port) :
+		resolved(true),
+		hostname(NULL),
+		ip(ip),
+		port(port)
+	{
+	}
+
+	/**
+	 * Create a network address based on a unresolved host and port
+	 * @param ip the unresolved hostname
+	 * @param port the port
+	 */
+	NetworkAddress(const char *hostname, uint16 port) :
+		resolved(false),
+		hostname(strdup(hostname)),
+		ip(0),
+		port(port)
+	{
+	}
+
+	/**
+	 * Make a clone of another address
+	 * @param address the address to clone
+	 */
+	NetworkAddress(const NetworkAddress &address) :
+		resolved(address.resolved),
+		hostname(address.hostname == NULL ? NULL : strdup(address.hostname)),
+		ip(address.ip),
+		port(address.port)
+	{
+	}
+
+	/** Clean up our mess */
+	~NetworkAddress()
+	{
+		free(hostname);
+	}
+
+	/**
+	 * Get the hostname; in case it wasn't given the
+	 * IPv4 dotted representation is given.
+	 * @return the hostname
+	 */
+	const char *GetHostname() const;
+
+	/**
+	 * Get the IP address. If the IP has not been resolved yet this will resolve
+	 * it possibly blocking this function for a while
+	 * @return the IP address
+	 */
+	uint32 GetIP();
+
+	/**
+	 * Get the port
+	 * @return the port
+	 */
+	uint16 GetPort() const
+	{
+		return this->port;
+	}
+
+	/**
+	 * Check whether the IP address has been resolved already
+	 * @return true iff the port has been resolved
+	 */
+	bool IsResolved() const
+	{
+		return this->resolved;
+	}
+};
+
+#endif /* ENABLE_NETWORK */
+#endif /* NETWORK_ADDRESS_H */