First fully working version, woo!

cbarrett · Aug 7, 2011 · ed960d7 · ed960d7
1 parent b781a4e
commit ed960d7
Show file tree

Hide file tree

Showing 6 changed files with 1,989 additions and 917 deletions.
diff --git a/Shared.h b/Shared.h
@@ -15,4 +15,11 @@ enum {
     MessageClear
 };
 
+enum {
+    OperatorAdd,
+    OperatorSub,
+    OperatorMul,
+    OperatorDiv
+};
+
 #endif
diff --git a/XPC Calc Service/main.m b/XPC Calc Service/main.m
@@ -53,9 +53,30 @@ static void XPC_Calc_Service_peer_event_handler(xpc_connection_t peer, xpc_objec
             xpc_release(reply);        
         } else if (messageType == MessageOperator) {
             xpc_object_t reply = xpc_dictionary_create_reply(event);
+            int64_t op = xpc_dictionary_get_int64(event, "op");
+
+            if ([stack count] >= 2) {
+                NSInteger rhs = [[stack objectAtIndex:[stack count] - 1] integerValue];
+                NSInteger lhs = [[stack objectAtIndex:[stack count] - 2] integerValue];
+
+                [stack removeObjectAtIndex:[stack count] - 1];
+                [stack removeObjectAtIndex:[stack count] - 1];
+
+                if (op == OperatorAdd) {
+                    [stack addObject:[NSNumber numberWithInteger:rhs + lhs]];
+                } else if (op == OperatorSub) {
+                    [stack addObject:[NSNumber numberWithInteger:rhs - lhs]];
+                } else if (op == OperatorMul) {
+                    [stack addObject:[NSNumber numberWithInteger:rhs * lhs]];
+                } else if (op == OperatorDiv) {
+                    [stack addObject:[NSNumber numberWithInteger:rhs / lhs]];
+                }
+            }
+
+            xpc_dictionary_set_value(reply, "stack", XPC_Calc_Service_NSArray_to_xpc_array(stack));
 
             xpc_connection_send_message(peer, reply);
-            xpc_release(reply);        
+            xpc_release(reply);
         } else if (messageType == MessageClear) {
             [stack removeAllObjects];
         }