Sort and comment the code

Change-Id: I1860c0d5fb03ce2217d5553159a090298596d939
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

1 files changed, 44 insertions, 1 deletions

diff --git a/src/signals.cpp b/src/signals.cpp
index d163c6f0..6e2f396a 100644
--- a/src/signals.cpp
+++ b/src/signals.cpp
@@ -1,10 +1,53 @@
+/*
+ * Copyright (C) 2015, 2016 "IoT.bzh"
+ * Author "Romain Forlot" <romain.forlot@iot.bzh>
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *	 http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 #include "signals.hpp"
 
+/** 
+ * @brief Can signal event map making access to afb_event
+ * externaly to an openxc existing structure.
+ *
+ * @desc Event map is making relation between CanSignal generic name
+ * and the afb_event struct used by application framework to pushed
+ * to the subscriber.
+ */
+std::map<std::string, struct afb_event> subscribed_signals;
+
+/**
+* @brief Mutex allowing safe manipulation on subscribed_signals map.
+* @desc To ensure that the map object isn't modified when we read it, you
+*  have to set this mutex before use subscribed_signals map object.
+*/
+std::mutex subscribed_signals_mutex;
+
+std::mutex& get_subscribed_signals_mutex()
+{
+	return subscribed_signals_mutex;
+}
+
+std::map<std::string, struct afb_event>& get_subscribed_signals()
+{
+	return subscribed_signals;
+}
+
 /**
  * @fn std::vector<std::string> find_signals(const openxc_DynamicField &key)
  * @brief return signals name found searching through CAN_signals and OBD2 pid
- * 
+ *
  * @param[in] const openxc_DynamicField : can contain numeric or string value in order to search against 
  *   can signals or obd2 signals name.
  *