Speed up akill xline checks

Cache xline nick, user, host, etc instead of rebuilding it everytime its
requested. Store users ip in sockaddr form and not string form to
prevent having to rebuild sockaddrs when checking xlines.

Also do not try to convert empty config values in Config::Get as this
can be rather common if a non string configuration value is not set, and
the cost of the ConvertException is great.

include/config.h

@@ -51,14 +51,13 @@ namespace Configuration
 		template<typename T> T Get(const Anope::string &tag, const Anope::string &def) const
 		{
 			const Anope::string &value = this->Get<const Anope::string>(tag, def);
-			try
-			{
-				return convertTo<T>(value);
-			}
-			catch (const ConvertException &)
-			{
-				return T();
-			}
+			if (!value.empty())
+				try
+				{
+					return convertTo<T>(value);
+				}
+				catch (const ConvertException &) { }
+			return T();
 		}
 
 		bool Set(const Anope::string &tag, const Anope::string &value);

include/modules/os_session.h

@@ -7,7 +7,7 @@ struct Session
 	unsigned count;                 /* Number of clients with this host */
 	unsigned hits;                  /* Number of subsequent kills for a host */
 
-	Session(const Anope::string &ip, int len) : addr(ip, len), count(1), hits(0) { }
+	Session(const sockaddrs &ip, int len) : addr(ip, len), count(1), hits(0) { }
 };
 
 struct Exception : Serializable

include/sockets.h

@@ -59,7 +59,7 @@ union CoreExport sockaddrs
 
 	/** Check if this sockaddr has data in it
 	 */
-	bool operator()() const;
+	bool valid() const;
 
 	/** Compares with sockaddr with another. Compares address type, port, and address
 	 * @return true if they are the same
@@ -82,8 +82,6 @@ union CoreExport sockaddrs
 	 * @throws A socket exception if given an invalid structure
 	 */
 	void ntop(int type, const void *src);
-
-	bool valid() const;
 };
 
 class CoreExport cidr
@@ -94,6 +92,7 @@ class CoreExport cidr
  public:
  	cidr(const Anope::string &ip);
 	cidr(const Anope::string &ip, unsigned char len);
+	cidr(const sockaddrs &ip, unsigned char len);
 	Anope::string mask() const;
 	bool match(const sockaddrs &other);
 	bool valid() const;

include/users.h

@@ -20,6 +20,7 @@
 #include "serialize.h"
 #include "commands.h"
 #include "account.h"
+#include "sockets.h"
 
 typedef Anope::hash_map<User *> user_map;
 
@@ -71,7 +72,7 @@ class CoreExport User : public virtual Base, public Extensible, public CommandRe
 	/* SSL Fingerprint */
 	Anope::string fingerprint;
 	/* User's IP */
-	Anope::string ip;
+	sockaddrs ip;
 	/* Server user is connected to */
 	Server *server;
 	/* When the user signed on. Set on connect and never modified. */

include/xline.h

@@ -12,12 +12,15 @@
 
 #include "serialize.h"
 #include "service.h"
+#include "sockets.h"
 
 /* An Xline, eg, anything added with operserv/akill, or any of the operserv/sxline commands */
 class CoreExport XLine : public Serializable
 {
-	void InitRegex();
+	void Init();
+	Anope::string nick, user, host, real;
  public:
+	cidr *c;
 	Anope::string mask;
 	Regex *regex;
 	Anope::string by;
@@ -32,10 +35,10 @@ class CoreExport XLine : public Serializable
 	XLine(const Anope::string &mask, const Anope::string &by, const time_t expires, const Anope::string &reason, const Anope::string &uid = "");
 	~XLine();
 
-	Anope::string GetNick() const;
-	Anope::string GetUser() const;
-	Anope::string GetHost() const;
-	Anope::string GetReal() const;
+	const Anope::string &GetNick() const;
+	const Anope::string &GetUser() const;
+	const Anope::string &GetHost() const;
+	const Anope::string &GetReal() const;
 
 	Anope::string GetReason() const;