Implement CanMessage_c method to navigate through

can_message queue (get/set)

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

3 files changed, 32 insertions, 19 deletions

diff --git a/src/can-utils.cpp b/src/can-utils.cpp
index 6721410..09f4947 100644
--- a/src/can-utils.cpp
+++ b/src/can-utils.cpp
@@ -128,6 +128,29 @@ int CanBus_c::send_can_message(CanMessage_c can_msg)
 	return 0;
 }
 
+/*
+ * Get a CanMessage from can_message_q and return it
+ * then point to the next CanMessage in queue.
+ * 
+ * Return the next queue element or NULL if queue is empty.
+ */
+CanMessage_c* CanBus_c::next_can_message()
+{
+	if(! can_message_q.empty())
+	{
+		CanMessage_c can_msg = can_message_q.front();
+		can_message_q.pop()
+		return &can_msg;
+	}
+
+	return NULL;
+}
+
+void CanBus_c::insert_new_can_message(CanMessage_c *can_msg)
+{
+	can_message_q.push(can_msg);
+}
+
 /********************************************************************************
 *
 *		CanMessage method implementation
diff --git a/src/can-utils.h b/src/can-utils.h
index 8c850e6..a760af1 100644
--- a/src/can-utils.h
+++ b/src/can-utils.h
@@ -99,8 +99,9 @@ class CanBus_c {
 		std::thread th_reading;
 		std::thread th_decoding;
 		std::thread th_pushing;
+
 		std::queue <CanMessage_c> can_message_q;
-		std::queue <openxc_VehicleMessage> VehicleMessage_q;
+		std::queue <openxc_VehicleMessage> vehicle_message_q;
 
 	public:
 		int open();
@@ -108,6 +109,9 @@ class CanBus_c {
 
 		void start_threads();
 		int send_can_message(CanMessage_c can_msg);
+
+		CanMessage_c* next_can_message();
+		void insert_new_can_message(CanMessage_c *can_msg);
 };
 
 /* A compact representation of a single CAN message, meant to be used in in/out
@@ -165,17 +169,12 @@ typedef enum CanMessageFormat CanMessageFormat;
  *
  * value - The integer value of the state on the CAN bus.
  * name  - The corresponding string name for the state in OpenXC.
+ */
 struct CanSignalState {
 	const int value;
 	const char* name;
 };
 typedef struct CanSignalState CanSignalState;
- */
- class CanSignalState_c {
-	 private:
-		const int value;
-		const char *name;
-};
 
 /* Public: A CAN signal to decode from the bus and output over USB.
  *
@@ -299,7 +298,8 @@ LIST_HEAD(CanMessageDefinitionList, CanMessageDefinitionListEntry);
  *	signalCount - The number of CAN signals (across all messages) defined for
  *		this message set.
  *	commandCount - The number of CanCommmands defined for this message set.
-typedef struct {
+ */
+ typedef struct {
 	uint8_t index;
 	const char* name;
 	uint8_t busCount;
@@ -307,16 +307,6 @@ typedef struct {
 	unsigned short signalCount;
 	unsigned short commandCount;
 } CanMessageSet;
- */
-class CanMessageSet_c {
-	private:
-		uint8_t index;
-		const char * name;
-		uint8_t busCount;
-		unsigned short messageCount;
-		unsigned short signalCount;
-		unsigned short commandCount;
-};
 
 /* Public: The type signature for a function to handle a custom OpenXC command.
  *
diff --git a/src/can_reader.cpp b/src/can_reader.cpp
index d9b3e67..6403cfa 100644
--- a/src/can_reader.cpp
+++ b/src/can_reader.cpp
@@ -63,4 +63,4 @@ void can_reader(CanBus_c *can_bus))
 
 		can_message_q.push(can_message);
 	}
-}
+}
\ No newline at end of file