Integrate the J1939 features : address claiming and write.

This commit allows to write J1939 messages and add the management
of the address claiming.

Bug-AGL: SPEC-2386

Signed-off-by: Arthur Guyader <arthur.guyader@iot.bzh>
Change-Id: I1bb95a7ba6f6ebe463319c3972d9d46897181d51

1 files changed, 68 insertions, 0 deletions

diff --git a/low-can-binding/utils/socketcan-j1939/socketcan-j1939-data.cpp b/low-can-binding/utils/socketcan-j1939/socketcan-j1939-data.cpp
new file mode 100644
index 00000000..c9d3e0a6
--- /dev/null
+++ b/low-can-binding/utils/socketcan-j1939/socketcan-j1939-data.cpp
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2018, 2019 "IoT.bzh"
+ * Author "Arthur Guyader" <arthur.guyader@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 "socketcan-j1939-data.hpp"
+#include "socketcan-j1939-addressclaiming.hpp"
+#include "../../binding/application.hpp"
+
+namespace utils
+{
+    /**
+     * @brief Open a socket for receive or send data
+     *
+     * @param device_name The device name to open the socket
+     * @param pgn The pgn to receive only him
+     * @return int Return the number of the socket
+     */
+    int socketcan_j1939_data_t::open(std::string device_name, pgn_t pgn)
+    {
+        int ret = socketcan_j1939_t::open(device_name,htole64(J1939_NAME_ECU),pgn,J1939_NO_ADDR);
+        if(ret >= 0)
+        {
+            if(tx_address_.can_addr.j1939.pgn != J1939_NO_PGN)
+            {
+                add_filter(J1939_NO_NAME,tx_address_.can_addr.j1939.pgn,J1939_NO_ADDR,J1939_NO_NAME,J1939_NO_PGN,J1939_NO_ADDR);
+            }
+            define_opt();
+        }
+        return ret;
+    }
+
+    /**
+     * @brief Write a message but check if the address claiming is operation before
+     *
+     * @param obj A j1939 message
+     * @return int 0 if the write is ok
+     */
+    int socketcan_j1939_data_t::write_message(message_t& obj)
+    {
+        std::unique_lock<std::mutex> lock(mutex_claiming_);
+        application_t &application = application_t::instance();
+        socketcan_j1939_addressclaiming_t *socket_addr_claimed = static_cast<socketcan_j1939_addressclaiming_t*>(application.get_socket_address_claiming().get());
+        while(socket_addr_claimed->get_state() != claiming_state::OPERATIONAL)
+        {
+            socketcan_j1939_t::signal_address_claiming_.wait(lock);
+            if(socket_addr_claimed->get_state() == claiming_state::INVALID)
+            {
+                AFB_ERROR("Invalid state");
+                return -1;
+            }
+        }
+        return socketcan_j1939_t::write_message(obj);
+    }
+}