fix some memory errors

bson.cc

@@ -71,11 +71,13 @@ bson encodeObject(const Local<Value> element) {
         else if (prop_val->IsObject()) {
             bson bson(encodeObject(prop_val));
             bson_append_bson(&bb, pname, &bson);
+            bson_destroy(&bson);
         }
     }
 
     bson bson;
     bson_from_buffer(&bson, &bb);
+
     return bson;
 }
 

mongo.cc

@@ -192,7 +192,8 @@ class Connection : public node::EventEmitter {
         int len;
         bson_little_endian32(&len, &head.len);
 
-        mongo_reply *out = reinterpret_cast<mongo_reply*>(new char[len]);
+        char *outbuf = new char[len];
+        mongo_reply *out = reinterpret_cast<mongo_reply*>(outbuf);
 
         out->head.len = len;
         bson_little_endian32(&out->head.id, &head.id);
@@ -212,7 +213,7 @@ class Connection : public node::EventEmitter {
         cursor = static_cast<mongo_cursor*>(bson_malloc(sizeof(mongo_cursor)));
 
         ParseReply(out);
-        delete out;
+        delete [] outbuf;
     }
 
     void
@@ -285,7 +286,10 @@ class Connection : public node::EventEmitter {
         } else {
             printf("advancing cursor by one object\n");
             bson_init(&cursor->current, bson_addr, 0);
+
+            return true;
         }
+        return false;
     }
 
     bool ConsumeInput(void) {
@@ -382,6 +386,9 @@ class Connection : public node::EventEmitter {
         bson query_fields_bson = encodeObject(query_fields);
 
         connection->Find(ns, &query_bson, &query_fields_bson);
+
+        bson_destroy(&query_bson);
+        bson_destroy(&query_fields_bson);
         return Undefined();
     }
 

wscript

@@ -20,7 +20,7 @@ def configure(conf):
   conf.env.append_value("LIBPATH_MONGO", abspath("./mongo-c-driver/"))
   conf.env.append_value("LIB_MONGO",     "mongoc")
   conf.env.append_value("CPPPATH_MONGO", abspath("./mongo-c-driver/src"))
-
+  
 def build(bld):
 #   bson = bld.new_task_gen('cxx', 'shlib', 'node_addon')
 #   bson.target = 'bson'