In class mutex and condition variable except for subscribed_signals map
[apps/agl-service-can-low-level.git] / src / can-utils.cpp
index ba4060e..977d344 100644 (file)
 
 #include "can-utils.hpp"
 
+#include <map>
+#include <vector>
+#include <cstdio>
+#include <string>
+#include <fcntl.h>
+#include <unistd.h>
+#include <net/if.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <json-c/json.h>
+#include <linux/can/raw.h>
+
+extern "C"
+{
+       #include <afb/afb-binding.h>
+}
+
 /********************************************************************************
 *
 *              CanMessage method implementation
@@ -138,6 +155,184 @@ canfd_frame can_message_t::convert_to_canfd_frame()
        return frame;
 }
 
+/********************************************************************************
+*
+*              can_bus_t method implementation
+*
+*********************************************************************************/
+
+can_bus_t::can_bus_t(int& conf_file)
+       : conf_file_{conf_file}
+{
+}
+
+void can_bus_t::start_threads()
+{
+       th_decoding_ = std::thread(can_decode_message, std::ref(*this));
+       is_decoding_ = true;
+       th_pushing_ = std::thread(can_event_push, std::ref(*this));
+       is_pushing_ = true;
+}
+
+void can_bus_t::stop_threads()
+{
+       is_decoding_ = false;
+       is_pushing_ = false;
+}
+
+bool can_bus_t::is_decoding()
+{
+       return is_decoding_;
+}
+
+bool can_bus_t::is_pushing()
+{
+       return is_pushing_;
+}
+
+int can_bus_t::init_can_dev()
+{
+       std::vector<std::string> devices_name;
+       int i;
+       size_t t;
+
+       devices_name = read_conf();
+
+       if (! devices_name.empty())
+       {
+               t = devices_name.size();
+               i=0;
+
+               for(const auto& device : devices_name)
+               {
+                       can_bus_dev_t can_bus_device_handler(device);
+                       if (can_bus_device_handler.open())
+                               i++;
+                       else
+                               ERROR(binder_interface, "Can't open device %s", device);
+                       can_bus_device_handler.start_reading(std::ref(*this));
+               }
+
+               NOTICE(binder_interface, "Initialized %d/%d can bus device(s)", i, t);
+               return 0;
+       }
+       ERROR(binder_interface, "init_can_dev: Error at CAN device initialization. No devices read from configuration file. Did you specify canbus JSON object ?");
+       return 1;
+}
+
+std::vector<std::string> can_bus_t::read_conf()
+{
+       std::vector<std::string> ret;
+       json_object *jo, *canbus;
+       int n, i;
+
+       FILE *fd = fdopen(conf_file_, "r");
+       if (fd)
+       {
+               std::string fd_conf_content;
+               std::fseek(fd, 0, SEEK_END);
+               fd_conf_content.resize(std::ftell(fd));
+               std::rewind(fd);
+               std::fread(&fd_conf_content[0], 1, fd_conf_content.size(), fd);
+               std::fclose(fd);
+
+               jo = json_tokener_parse(fd_conf_content.c_str());
+
+               if (jo == NULL || !json_object_object_get_ex(jo, "canbus", &canbus))
+               {
+                       ERROR(binder_interface, "Can't find canbus node in the configuration file. Please review it.");
+                       ret.clear();
+               }
+               else if (json_object_get_type(canbus) != json_type_array)
+                       ret.push_back(json_object_get_string(canbus));
+               else
+               {
+                       n = json_object_array_length(canbus);
+                       for (i = 0 ; i < n ; i++)
+                               ret.push_back(json_object_get_string(json_object_array_get_idx(canbus, i)));
+               }
+               return ret;
+       }
+       ERROR(binder_interface, "Problem at reading the conf file");
+       ret.clear();
+       return ret;
+}
+
+std::condition_variable& can_bus_t::get_new_can_message()
+{
+       return new_can_message_;
+}
+
+std::mutex& can_bus_t::get_can_message_mutex()
+{
+       return can_message_mutex_;
+}
+
+std::condition_variable& can_bus_t::get_new_decoded_can_message()
+{
+       return new_decoded_can_message_;
+}
+
+std::mutex& can_bus_t::get_decoded_can_message_mutex()
+{
+       return decoded_can_message_mutex_;
+}
+
+can_message_t can_bus_t::next_can_message()
+{
+       can_message_t can_msg;
+
+       if(!can_message_q_.empty())
+       {
+               can_msg = can_message_q_.front();
+               can_message_q_.pop();
+               DEBUG(binder_interface, "next_can_message: Here is the next can message : id %d, length %d", can_msg.get_id(), can_msg.get_length());
+               return can_msg;
+       }
+       
+       NOTICE(binder_interface, "next_can_message: End of can message queue");
+       has_can_message_ = false;
+       return can_msg;
+}
+
+void can_bus_t::push_new_can_message(const can_message_t& can_msg)
+{
+       can_message_q_.push(can_msg);
+}
+
+bool can_bus_t::has_can_message() const
+{
+       return has_can_message_;
+}
+
+openxc_VehicleMessage can_bus_t::next_vehicle_message()
+{
+       openxc_VehicleMessage v_msg;
+
+       if(! vehicle_message_q_.empty())
+       {
+               v_msg = vehicle_message_q_.front();
+               vehicle_message_q_.pop();
+               DEBUG(binder_interface, "next_vehicle_message: next vehicle message poped");
+               return v_msg;
+       }
+       
+       NOTICE(binder_interface, "next_vehicle_message: End of vehicle message queue");
+       has_vehicle_message_ = false;
+       return v_msg;
+}
+
+void can_bus_t::push_new_vehicle_message(const openxc_VehicleMessage& v_msg)
+{
+       vehicle_message_q_.push(v_msg);
+       has_vehicle_message_ = true;
+}
+
+bool can_bus_t::has_vehicle_message() const
+{
+       return has_vehicle_message_;
+}
+
 /********************************************************************************
 *
 *              can_bus_dev_t method implementation
@@ -188,14 +383,9 @@ int can_bus_dev_t::open()
 
                        /* And bind it to txAddress */
                        if (::bind(can_socket_, (struct sockaddr *)&txAddress_, sizeof(txAddress_)) < 0)
-                       {
                                ERROR(binder_interface, "Bind failed");
-                       }
                        else
-                       {
-                               ::fcntl(can_socket_, F_SETFL, O_NONBLOCK);
                                return 0;
-                       }
                }
                close();
        }
@@ -249,7 +439,6 @@ canfd_frame can_bus_dev_t::read()
 void can_bus_dev_t::start_reading(can_bus_t& can_bus)
 {
        th_reading_ = std::thread(can_reader, std::ref(*this), std::ref(can_bus));
-
        is_running_ = true;
 }
 
@@ -285,142 +474,4 @@ int can_bus_dev_t::send_can_message(can_message_t& can_msg)
                open();
        }
        return 0;
-}
-/********************************************************************************
-*
-*              can_bus_t method implementation
-*
-*********************************************************************************/
-
-can_bus_t::can_bus_t(int& conf_file)
-       :  conf_file_{conf_file}
-{
-}
-
-void can_bus_t::start_threads()
-{
-       th_decoding_ = std::thread(can_decode_message, std::ref(*this));
-       th_pushing_ = std::thread(can_event_push, std::ref(*this));
-}
-
-
-int can_bus_t::init_can_dev()
-{
-       std::vector<std::string> devices_name;
-       int i;
-       size_t t;
-
-       devices_name = read_conf();
-
-       if (! devices_name.empty())
-       {
-               t = devices_name.size();
-               i=0;
-
-               for(const auto& device : devices_name)
-               {
-                       can_bus_dev_t can_bus_device_handler(device);
-                       can_bus_device_handler.open();
-                       can_bus_device_handler.start_reading(std::ref(*this));
-                       i++;
-               }
-
-               NOTICE(binder_interface, "Initialized %d/%d can bus device(s)", i, t);
-               return 0;
-       }
-       ERROR(binder_interface, "init_can_dev: Error at CAN device initialization.");
-       return 1;
-}
-
-std::vector<std::string> can_bus_t::read_conf()
-{
-       std::vector<std::string> ret;
-       json_object *jo, *canbus;
-       int n, i;
-
-       FILE *fd = fdopen(conf_file_, "r");
-       if (fd)
-       {
-               std::string fd_conf_content;
-               std::fseek(fd, 0, SEEK_END);
-               fd_conf_content.resize(std::ftell(fd));
-               std::rewind(fd);
-               std::fread(&fd_conf_content[0], 1, fd_conf_content.size(), fd);
-               std::fclose(fd);
-
-               jo = json_tokener_parse(fd_conf_content.c_str());
-
-               if (jo == NULL || !json_object_object_get_ex(jo, "canbus", &canbus))
-               {
-                       ERROR(binder_interface, "Can't find canbus node in the configuration file. Please review it.");
-                       ret.clear();
-               }
-               else if (json_object_get_type(canbus) != json_type_array)
-                       ret.push_back(json_object_get_string(canbus));
-               else
-               {
-                       n = json_object_array_length(canbus);
-                       for (i = 0 ; i < n ; i++)
-                               ret.push_back(json_object_get_string(json_object_array_get_idx(canbus, i)));
-               }
-               return ret;
-       }
-       ERROR(binder_interface, "Problem at reading the conf file");
-       ret.clear();
-       return ret;
-}
-
-can_message_t can_bus_t::next_can_message()
-{
-       can_message_t can_msg;
-
-       if(!can_message_q_.empty())
-       {
-               can_msg = can_message_q_.front();
-               can_message_q_.pop();
-               DEBUG(binder_interface, "next_can_message: Here is the next can message : id %d, length %d", can_msg.get_id(), can_msg.get_length());
-               return can_msg;
-       }
-       
-       NOTICE(binder_interface, "next_can_message: End of can message queue");
-       has_can_message_ = false;
-       return can_msg;
-}
-
-void can_bus_t::push_new_can_message(const can_message_t& can_msg)
-{
-       can_message_q_.push(can_msg);
-}
-
-bool can_bus_t::has_can_message() const
-{
-       return has_can_message_;
-}
-
-openxc_VehicleMessage can_bus_t::next_vehicle_message()
-{
-       openxc_VehicleMessage v_msg;
-
-       if(! vehicle_message_q_.empty())
-       {
-               v_msg = vehicle_message_q_.front();
-               vehicle_message_q_.pop();
-               DEBUG(binder_interface, "next_vehicle_message: next vehicle message poped");
-               return v_msg;
-       }
-       
-       NOTICE(binder_interface, "next_vehicle_message: End of vehicle message queue");
-       has_vehicle_message_ = false;
-       return v_msg;
-}
-
-void can_bus_t::push_new_vehicle_message(const openxc_VehicleMessage& v_msg)
-{
-       vehicle_message_q_.push(v_msg);
-       has_vehicle_message_ = true;
-}
-
-bool can_bus_t::has_vehicle_message() const
-{
-       return has_vehicle_message_;
 }
\ No newline at end of file