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authorRomain Forlot <romain.forlot@iot.bzh>2017-04-18 20:23:14 +0200
committerRomain Forlot <romain.forlot@iot.bzh>2017-04-18 20:23:14 +0200
commit44d7237fde80af222939445055a94a0e50e82935 (patch)
treea65cd2e82fc70ddeed4fbf3b2cd05c4b025c8f90 /CAN-binder
parent3642f8f2545f22f2e574bbd820e67229516e9149 (diff)
Use a system INI configuration file to get devices mapping
Instead of specifying a JSON configuration file with CAN devices name, it uses a mapping configuration file that map a high level device names to a real low level names. File path is to be specified into the generated source code which is /etc/dev-mapping.conf for now. Configuration file uses INI file format and is parsed using inih library cpp wrapper. Change-Id: Ibde104e76cd78a6cc86f6eec4f66c274b7567d43 Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'CAN-binder')
m---------CAN-binder/libs/inih0
-rw-r--r--CAN-binder/low-can-binding/CMakeLists.txt5
-rw-r--r--CAN-binder/low-can-binding/can/can-bus.cpp100
-rw-r--r--CAN-binder/low-can-binding/can/can-bus.hpp5
-rw-r--r--CAN-binder/low-can-binding/configuration-generated.cpp5
-rw-r--r--CAN-binder/low-can-binding/configuration.hpp5
-rw-r--r--CAN-binder/low-can-binding/utils/config-parser.cpp87
-rw-r--r--CAN-binder/low-can-binding/utils/config-parser.hpp14
8 files changed, 84 insertions, 137 deletions
diff --git a/CAN-binder/libs/inih b/CAN-binder/libs/inih
new file mode 160000
+Subproject 3706abf10c66599695a3f08e460774ffa7f40ef
diff --git a/CAN-binder/low-can-binding/CMakeLists.txt b/CAN-binder/low-can-binding/CMakeLists.txt
index a1768ab..7359ac7 100644
--- a/CAN-binder/low-can-binding/CMakeLists.txt
+++ b/CAN-binder/low-can-binding/CMakeLists.txt
@@ -24,7 +24,7 @@ PROJECT_TARGET_ADD(low-can-binding)
add_library(${TARGET_NAME} MODULE ${TARGET_NAME}.cpp configuration.cpp configuration-generated.cpp
can/can-bus.cpp can/can-bus-dev.cpp can/can-message-set.cpp can/can-message-definition.cpp can/can-message.cpp can/can-signals.cpp can/can-decoder.cpp
diagnostic/diagnostic-message.cpp diagnostic/diagnostic-manager.cpp diagnostic/active-diagnostic-request.cpp
- utils/signals.cpp utils/openxc-utils.cpp utils/timer.cpp utils/socket.cpp)
+ utils/signals.cpp utils/openxc-utils.cpp utils/timer.cpp utils/socket.cpp utils/config-parser.cpp)
# Binder exposes a unique public entry point
SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
@@ -40,6 +40,7 @@ PROJECT_TARGET_ADD(low-can-binding)
uds-c
isotp-c
bitfield-c
+ inih
${link_libraries}
)
@@ -47,4 +48,4 @@ PROJECT_TARGET_ADD(low-can-binding)
INSTALL(TARGETS ${TARGET_NAME}
LIBRARY DESTINATION ${BINDINGS_INSTALL_DIR})
- build_widget("BINDING")
+ build_widget("BINDING") \ No newline at end of file
diff --git a/CAN-binder/low-can-binding/can/can-bus.cpp b/CAN-binder/low-can-binding/can/can-bus.cpp
index 33f58fd..8befec6 100644
--- a/CAN-binder/low-can-binding/can/can-bus.cpp
+++ b/CAN-binder/low-can-binding/can/can-bus.cpp
@@ -43,10 +43,9 @@ extern "C"
/// @brief Class constructor
///
/// @param[in] conf_file - handle to the json configuration file.
-can_bus_t::can_bus_t(int conf_file)
+can_bus_t::can_bus_t(utils::config_parser_t conf_file)
: conf_file_{conf_file}
-{
-}
+{}
std::map<std::string, std::shared_ptr<can_bus_dev_t>> can_bus_t::can_devices_;
@@ -231,82 +230,37 @@ int can_bus_t::init_can_dev()
int i = 0;
size_t t;
- devices_name = read_conf();
-
- if (! devices_name.empty())
+ if(conf_file_.check_conf())
{
- t = devices_name.size();
-
- for(const auto& device : devices_name)
+ devices_name = conf_file_.get_devices_name();
+ if (! devices_name.empty())
{
- can_bus_t::can_devices_[device] = std::make_shared<can_bus_dev_t>(device, i);
- if (can_bus_t::can_devices_[device]->open() == 0)
- {
- DEBUG(binder_interface, "Start reading thread");
- NOTICE(binder_interface, "%s device opened and reading", device.c_str());
- can_bus_t::can_devices_[device]->start_reading(*this);
- i++;
- }
- else
+ t = devices_name.size();
+
+ for(const auto& device : devices_name)
{
- ERROR(binder_interface, "Can't open device %s", device.c_str());
- return 1;
+ can_bus_t::can_devices_[device] = std::make_shared<can_bus_dev_t>(device, i);
+ if (can_bus_t::can_devices_[device]->open() == 0)
+ {
+ DEBUG(binder_interface, "Start reading thread");
+ NOTICE(binder_interface, "%s device opened and reading", device.c_str());
+ can_bus_t::can_devices_[device]->start_reading(*this);
+ i++;
+ }
+ else
+ {
+ ERROR(binder_interface, "Can't open device %s", device.c_str());
+ return 1;
+ }
}
+ NOTICE(binder_interface, "Initialized %d/%d can bus device(s)", i, (int)t);
+ return 0;
}
-
- NOTICE(binder_interface, "Initialized %d/%d can bus device(s)", i, (int)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;
-}
-
-/// @brief read the conf_file_ and will parse json objects
-/// in it searching for canbus objects devices name.
-///
-/// @return Vector of can bus device name string.
-std::vector<std::string> can_bus_t::read_conf()
-{
- std::vector<std::string> ret;
- json_object *jo, *canbus;
- int n, i;
- const char* taxi;
-
- 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);
-
- DEBUG(binder_interface, "Configuration file content : %s", fd_conf_content.c_str());
- 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)
- {
- taxi = json_object_get_string(canbus);
- DEBUG(binder_interface, "Can bus found: %s", taxi);
- ret.push_back(std::string(taxi));
- }
- 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, "init_can_dev: Error at CAN device initialization. No devices read from configuration file");
+ return 1;
}
- ERROR(binder_interface, "Problem at reading the conf file");
- ret.clear();
- return ret;
+ ERROR(binder_interface, "init_can_dev: Can't read INI configuration file");
+ return 2;
}
/// @brief return new_can_message_cv_ member
diff --git a/CAN-binder/low-can-binding/can/can-bus.hpp b/CAN-binder/low-can-binding/can/can-bus.hpp
index eb47476..5715c74 100644
--- a/CAN-binder/low-can-binding/can/can-bus.hpp
+++ b/CAN-binder/low-can-binding/can/can-bus.hpp
@@ -27,6 +27,7 @@
#include "openxc.pb.h"
#include "can-message.hpp"
#include "can-bus-dev.hpp"
+#include "../utils/config-parser.hpp"
#include "../diagnostic/active-diagnostic-request.hpp"
#include "../low-can-binding.hpp"
@@ -48,7 +49,7 @@
class can_bus_t
{
private:
- int conf_file_; ///< configuration file handle used to initialize can_bus_dev_t objects.
+ utils::config_parser_t& conf_file_; ///< configuration file handle used to initialize can_bus_dev_t objects.
void can_decode_message();
std::thread th_decoding_; ///< thread that'll handle decoding a can frame
@@ -69,7 +70,7 @@ private:
static std::map<std::string, std::shared_ptr<can_bus_dev_t>> can_devices_; ///< Can device map containing all can_bus_dev_t objects initialized during init_can_dev function
public:
- can_bus_t(int conf_file);
+ can_bus_t(utils::config_parser_t conf_file);
can_bus_t(can_bus_t&&);
int init_can_dev();
diff --git a/CAN-binder/low-can-binding/configuration-generated.cpp b/CAN-binder/low-can-binding/configuration-generated.cpp
index 2e96570..98227cb 100644
--- a/CAN-binder/low-can-binding/configuration-generated.cpp
+++ b/CAN-binder/low-can-binding/configuration-generated.cpp
@@ -2,7 +2,8 @@
#include "can/can-decoder.hpp"
configuration_t::configuration_t()
- : can_message_set_{{0, "example", 0, 1, 5, 0, 20}}
+ : can_bus_manager_(utils::config_parser_t("/etc/dev-mapping.conf"))
+ , can_message_set_{{0, "example", 0, 1, 5, 0, 20}}
, can_message_definition_
{
{
@@ -346,5 +347,3 @@ const std::string configuration_t::get_diagnostic_bus() const
{
return "can0";
}
-
-
diff --git a/CAN-binder/low-can-binding/configuration.hpp b/CAN-binder/low-can-binding/configuration.hpp
index 017b148..535ab8d 100644
--- a/CAN-binder/low-can-binding/configuration.hpp
+++ b/CAN-binder/low-can-binding/configuration.hpp
@@ -43,10 +43,7 @@
class configuration_t
{
private:
- can_bus_t can_bus_manager_ = can_bus_t(
- afb_daemon_rootdir_open_locale(
- binder_interface->daemon, "etc/can_buses.json", O_RDONLY, NULL)); ///< instanciate the CAN bus
- ///< This will read the configuration file and initialize all CAN devices specified in it.
+ can_bus_t can_bus_manager_; ///< instanciate the CAN bus manager. It's the one in charge of initialize the CAN bus devices.
diagnostic_manager_t diagnostic_manager_; ///< Diagnostic manager use to manage diagnostic message communication.
uint8_t active_message_set_ = 0; ///< Which is the active message set ? Default to 0.
diff --git a/CAN-binder/low-can-binding/utils/config-parser.cpp b/CAN-binder/low-can-binding/utils/config-parser.cpp
index e73b0f9..cb344be 100644
--- a/CAN-binder/low-can-binding/utils/config-parser.cpp
+++ b/CAN-binder/low-can-binding/utils/config-parser.cpp
@@ -15,57 +15,37 @@
* limitations under the License.
*/
+#include "config-parser.hpp"
+
+#include "../low-can-binding.hpp"
+
namespace utils
{
+ /// @brief constructor using a POSIX file handle as input.
+ ///
+ /// @param conf_file - a POSIX file handle to the INI configuration file
config_parser_t::config_parser_t(int conf_file)
- : conf_file_{conf_file}, devices_name{}
+ : config_content_(fdopen(conf_file, "r"))
+ {
+ ::close(conf_file);
+ }
+
+ /// @brief constructor using path to file
+ config_parser_t::config_parser_t(std::string conf_file)
+ : config_content_{INIReader(conf_file)}
{}
- /// @brief read the conf_file_ and will parse json objects
- /// in it searching for canbus objects devices name.
- ///
- /// @return Vector of can bus device name string.
- void can_bus_t::read_conf()
+ /// @brief read the conf_file_ and parse it into an INIReader object
+ /// to search into later.
+ bool config_parser_t::check_conf()
{
- FILE *fd = fdopen(conf_file_, "r");
- if (fd)
+ if (config_content_.ParseError() < 0)
{
- std::fseek(fd, 0, SEEK_END);
- config_content_.resize(std::ftell(fd));
- std::rewind(fd);
- std::fread(&config_content_[0], 1, config_content_.size(), fd);
- std::fclose(fd);
-
- DEBUG(binder_interface, "Configuration file content : %s", config_content_.c_str());
+ ERROR(binder_interface, "read_conf: Can't load the INI config file.");
+ return false;
}
- ERROR(binder_interface, "Problem at reading the conf file");
- }
-
- void parse_devices_name()
- {
- json_object *jo, *canbus;
- const char* taxi;
-
- jo = json_tokener_parse(config_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.");
- devices_name_.clear();
- }
- else if (json_object_get_type(canbus) != json_type_array)
- {
- taxi = json_object_get_string(canbus);
- DEBUG(binder_interface, "Can bus found: %s", taxi);
- devices_name_.push_back(std::string(taxi));
- }
- else
- {
- int n, i;
- n = json_object_array_length(canbus);
- for (i = 0 ; i < n ; i++)
- devices_name_.push_back(json_object_get_string(json_object_array_get_idx(canbus, i)));
- }
+ DEBUG(binder_interface, "read_conf: Configuration file parsed");
+ return true;
}
/// @brief Public method to access devices_name_ vector. If vector size equal 0
@@ -74,11 +54,24 @@ namespace utils
/// have to test the returned value.
///
/// @return A const vector with string of linux CAN devices.
- const std::vector<std::string>& get_devices_name()
+ const std::vector<std::string> config_parser_t::get_devices_name()
{
- if(devices_name_.empty())
- parse_devices_name();
+ std::vector<std::string> devices_name;
+
+ std::set<std::string> sections = config_content_.GetSections();
+ for(const auto& sectionsIt : sections)
+ {
+ if(sectionsIt == "CANbus-mapping")
+ {
+ std::set<std::string> fields = config_content_.GetFields(sectionsIt);
+ for(const auto& fieldsIt : fields)
+ {
+ std::string val = config_content_.Get(sectionsIt, fieldsIt, "INVALID");
+ devices_name.push_back(val);
+ }
+ }
+ }
- return devices_name_;
+ return devices_name;
}
} \ No newline at end of file
diff --git a/CAN-binder/low-can-binding/utils/config-parser.hpp b/CAN-binder/low-can-binding/utils/config-parser.hpp
index e6bd9d2..2d50485 100644
--- a/CAN-binder/low-can-binding/utils/config-parser.hpp
+++ b/CAN-binder/low-can-binding/utils/config-parser.hpp
@@ -23,21 +23,23 @@
#include <json-c/json.h>
#include <string>
+#include <vector>
+#include "INIReader.h"
namespace utils
{
+ /// @brief A configuration file parser that handle INI configuration
+ /// file format.
class config_parser_t
{
private:
- int conf_file_; /*!< conf_file_ - file that handle the binding configuration file */
- std::string config_content_; /*!< config_content_ - String that contains the content of config file */
- std::vector<std::string> devices_name_; /*!< devices_name - Found devices name after reading configuration file */
+ INIReader config_content_; /*!< config_content_ - Parsed content of INI file.*/
- void parse_devices_name();
public:
config_parser_t(int conf_file);
+ config_parser_t(std::string conf_file);
- void read_conf();
- std::vector<std::string> get_devices_name();
+ bool check_conf();
+ const std::vector<std::string> get_devices_name();
};
}