Improve memory allocation about Signal states.

Returning to Signal states map avoiding hole in vector allocation as we did
not know how many state a Signal can takes. So a map may be a better choice
Will see.

Change-Id: Ie3ccdbd31296c5c0ebaefc109e75f2e0cde03756
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

3 files changed, 10 insertions, 10 deletions

diff --git a/src/can/can-decoder.cpp b/src/can/can-decoder.cpp
index ec31e36..aef042c 100644
--- a/src/can/can-decoder.cpp
+++ b/src/can/can-decoder.cpp
@@ -124,7 +124,7 @@ openxc_DynamicField decoder_t::ignoreDecoder(can_signal_t& signal,
 openxc_DynamicField decoder_t::stateDecoder(can_signal_t& signal,
 		const std::vector<can_signal_t>& signals, float value, bool* send)
 {
-	const std::string signal_state = signal.get_states(value);
+	const std::string signal_state = signal.get_states((uint8_t)value);
 	openxc_DynamicField decoded_value = build_DynamicField(signal_state);
 	if(signal_state.size() <= 0)
 	{
diff --git a/src/can/can-signals.cpp b/src/can/can-signals.cpp
index d04c03a..41949fc 100644
--- a/src/can/can-signals.cpp
+++ b/src/can/can-signals.cpp
@@ -29,7 +29,7 @@ std::string can_signal_t::prefix_ = "messages";
 
 can_signal_t::can_signal_t(can_message_definition_t& message, std::string generic_name, uint8_t bit_position, uint8_t bit_size,
 			 float factor, float offset, float min_value, float max_value, frequency_clock_t frequency, bool send_same, bool force_send_changed,
-			 std::vector<std::string> states, bool writable, SignalDecoder decoder, SignalEncoder encoder, bool received)
+			 std::map<uint8_t, std::string> states, bool writable, SignalDecoder decoder, SignalEncoder encoder, bool received)
 	: message_{message}, generic_name_{generic_name}, bit_position_{bit_position}, bit_size_{bit_size}, factor_{factor}, offset_{offset},
 	min_value_{min_value}, max_value_{max_value}, frequency_{frequency}, send_same_{send_same}, force_send_changed_{force_send_changed}, states_{states},
 	writable_{writable}, decoder_{decoder}, encoder_{encoder}, received_{received}, last_value_{(float)NULL}
@@ -100,16 +100,16 @@ bool can_signal_t::get_force_send_changed() const
 	return force_send_changed_;
 }
 
-const std::vector<std::string>& can_signal_t::get_states() const
+const std::map<uint8_t, std::string>& can_signal_t::get_states() const
 {
 	return states_;
 }
 
-const std::string can_signal_t::get_states(float value) const
+const std::string can_signal_t::get_states(uint8_t value)
 {
 	if (value < states_.size())
-		return states_[(int)value];
-	return std::string("");
+		return states_[value];
+	return std::string();
 }
 
 size_t can_signal_t::get_state_count() const
diff --git a/src/can/can-signals.hpp b/src/can/can-signals.hpp
index c522d0a..9a07f66 100644
--- a/src/can/can-signals.hpp
+++ b/src/can/can-signals.hpp
@@ -96,7 +96,7 @@ private:
 	bool send_same_; /*!< send_same_ - If true, will re-send even if the value hasn't changed.*/
 	bool force_send_changed_; /*!< force_send_changed_ - If true, regardless of the frequency, it will send the
 							   * value if it has changed. */
-	std::vector<std::string> states_; /*!< states_ - A map of CAN signal state describing the mapping
+	std::map<uint8_t, std::string> states_; /*!< states_ - A map of CAN signal state describing the mapping
 										 * between numerical and string values for valid states. */
 	bool writable_; /*!< writable - True if the signal is allowed to be written from the USB host
 					 *	back to CAN. Defaults to false.*/
@@ -112,7 +112,7 @@ private:
 public:
 	can_signal_t(can_message_definition_t& message, std::string generic_name, uint8_t bit_position, uint8_t bit_size,
 				 float factor, float offset, float min_value, float max_value, frequency_clock_t frequency, bool send_same, bool force_send_changed,
-				 std::vector<std::string> states, bool writable, SignalDecoder decoder, SignalEncoder encoder, bool received);
+				 std::map<uint8_t, std::string> states, bool writable, SignalDecoder decoder, SignalEncoder encoder, bool received);
 
 	can_message_definition_t& get_message();
 	const std::string& get_generic_name() const;
@@ -127,8 +127,8 @@ public:
 	frequency_clock_t& get_frequency();
 	bool get_send_same() const;
 	bool get_force_send_changed() const;
-	const std::vector<std::string>& get_states() const;
-	const std::string get_states(float value) const;
+	const std::map<uint8_t, std::string>& get_states() const;
+	const std::string get_states(uint8_t value);
 	size_t get_state_count() const;
 	bool get_writable() const;
 	SignalDecoder& get_decoder();