Switch to structs for thin wrappers.

dub.json

@@ -5,7 +5,7 @@
 	"copyright": "Copyright © 2015, Tristan Hume",
   "license": "MIT",
   "authors": ["Tristan Hume"],
-    "lflags": ["-ldbus-1"],
+  "lflags": ["-ldbus-1"],
 	"dependencies": {
       "dunit": "~>1.0.10"
 	}

source/app.d

@@ -6,11 +6,11 @@ void main()
 {
   Connection conn = connectToBus();
   for(int i = 0; i < 50; i++) {
-    Message msg =  new Message("ca.thume.transience","/ca/thume/transience/screensurface",
+    Message msg =  Message("ca.thume.transience","/ca/thume/transience/screensurface",
                                "ca.thume.transience.screensurface","testDot");
     conn.sendBlocking(msg);
   }
-  Message msg2 = new Message("ca.thume.transience","/ca/thume/transience/screensurface",
+  Message msg2 = Message("ca.thume.transience","/ca/thume/transience/screensurface",
                             "ca.thume.transience.screensurface","testPing");
   Message res = conn.sendWithReplyBlocking(msg2,3000);
   int result = res.read!int();

source/ddbus/conv.d

@@ -76,7 +76,7 @@ void readIterTuple(Tup)(DBusMessageIter *iter, ref Tup tuple) if(isTuple!Tup &&
 unittest {
   import dunit.toolkit;
   import ddbus.thin;
-  Message msg = new Message("org.example.wow","/wut","org.test.iface","meth");
+  Message msg = Message("org.example.wow","/wut","org.test.iface","meth");
   bool[] emptyB;
   auto args = tuple(5,true,"wow",[6,5],tuple(6.2,4,[["lol"]],emptyB));
   msg.build(args.expand);

source/ddbus/router.d

@@ -72,8 +72,8 @@ class MessageRouter {
 
 unittest {
   import dunit.toolkit;
-  auto msg = new Message("org.example.test", "/test","org.example.testing","testMethod");
+  auto msg = Message("org.example.test", "/test","org.example.testing","testMethod");
-  auto patt= new MessagePattern(msg);
+  auto patt= MessagePattern(msg);
   patt.assertEqual(patt);
   patt.sender.assertNull();
   patt.path.assertEqual("/test");

source/ddbus/simple.d

@@ -14,14 +14,14 @@ class PathIface {
   }
 
   Ret call(Ret, Args...)(string meth, Args args) if(allCanDBus!Args && canDBus!Ret) {
-    Message msg = new Message(dbus_message_new_method_call(dest,path,iface,meth.toStringz()));
+    Message msg = Message(dbus_message_new_method_call(dest,path,iface,meth.toStringz()));
     msg.build(args);
     Message ret = conn.sendWithReplyBlocking(msg);
     return ret.read!Ret();
   }
 
   Message opDispatch(string meth, Args...)(Args args) {
-    Message msg = new Message(dbus_message_new_method_call(dest,path,iface,meth.toStringz()));
+    Message msg = Message(dbus_message_new_method_call(dest,path,iface,meth.toStringz()));
     msg.build(args);
     return conn.sendWithReplyBlocking(msg);
   }

source/ddbus/thin.d

@@ -1,3 +1,4 @@
+/// Thin OO wrapper around DBus types
 module ddbus.thin;
 
 import ddbus.c_lib;
@@ -30,7 +31,9 @@ enum MessageType {
   Call, Return, Error, Signal
 }
 
-class Message {
+struct Message {
+  DBusMessage *msg;
+
   this(string dest, string path, string iface, string method) {
     msg = dbus_message_new_method_call(dest.toStringz(), path.toStringz(), iface.toStringz(), method.toStringz());
   }
@@ -39,6 +42,10 @@ class Message {
     msg = m;
   }
 
+  this(this) {
+    dbus_message_ref(msg);
+  }
+
   ~this() {
     dbus_message_unref(msg);
   }
@@ -71,7 +78,7 @@ class Message {
   }
 
   Message createReturn() {
-    return new Message(dbus_message_new_method_return(msg));
+    return Message(dbus_message_new_method_return(msg));
   }
 
   MessageType type() {
@@ -109,22 +116,32 @@ class Message {
     assert(cStr != null);
     return cStr.fromStringz().assumeUnique();
   }
-
-  DBusMessage *msg;
 }
 
 unittest {
   import dunit.toolkit;
-  auto msg = new Message("org.example.test", "/test","org.example.testing","testMethod");
+  auto msg = Message("org.example.test", "/test","org.example.testing","testMethod");
   msg.path().assertEqual("/test");
 }
 
-class Connection {
+struct Connection {
   DBusConnection *conn;
   this(DBusConnection *connection) {
     conn = connection;
   }
 
+  this(this) {
+    dbus_connection_ref(conn);
+  }
+
+  ~this() {
+    dbus_connection_unref(conn);
+  }
+
+  void close() {
+    dbus_connection_close(conn);
+  }
+
   void send(Message msg) {
     dbus_connection_send(conn,msg.msg, null);
   }
@@ -135,20 +152,20 @@ class Connection {
   }
 
   Message sendWithReplyBlocking(Message msg, int timeout = 100) {
+    DBusMessage *dbusMsg = msg.msg;
+    dbus_message_ref(dbusMsg);
     DBusMessage *reply = wrapErrors((err) {
-        return dbus_connection_send_with_reply_and_block(conn,msg.msg,timeout,err);
+        auto ret = dbus_connection_send_with_reply_and_block(conn,dbusMsg,timeout,err);
+        dbus_message_unref(dbusMsg);
+        return ret;
       });
-    return new Message(reply);
+    return Message(reply);
-  }
-
-  ~this() {
-    dbus_connection_unref(conn);
   }
 }
 
 Connection connectToBus(DBusBusType bus = DBusBusType.DBUS_BUS_SESSION) {
   DBusConnection *conn = wrapErrors((err) { return dbus_bus_get(bus,err); });
-  return new Connection(conn);
+  return Connection(conn);
 }
 
 unittest {