diff options
| -rw-r--r-- | low-can-binding/binding/low-can-cb.cpp | 143 |
1 files changed, 64 insertions, 79 deletions
diff --git a/low-can-binding/binding/low-can-cb.cpp b/low-can-binding/binding/low-can-cb.cpp index c5a0138e..3cb61c6c 100644 --- a/low-can-binding/binding/low-can-cb.cpp +++ b/low-can-binding/binding/low-can-cb.cpp @@ -24,7 +24,7 @@ #include <mutex> #include <vector> #include <thread> -#include <json-c/json.h> +#include <wrap-json.h> #include <systemd/sd-event.h> #include "openxc.pb.h" @@ -409,6 +409,10 @@ void unsubscribe(afb_req_t request) static int send_frame(const std::string& bus_name, const struct can_frame& cf) { + if(bus_name.empty()) { + return -1; + } + std::map<std::string, std::shared_ptr<low_can_socket_t> >& cd = application_t::instance().get_can_devices(); if( cd.count(bus_name) == 0) @@ -417,123 +421,104 @@ static int send_frame(const std::string& bus_name, const struct can_frame& cf) return cd[bus_name]->tx_send(cf, bus_name); } -static int write_raw_frame(const std::string& bus_name, uint32_t can_id, uint8_t can_dlc, struct json_object* can_data) +static void write_raw_frame(afb_req_t request, const std::string& bus_name, json_object *json_value) { - int rc = 0; struct can_frame cf; + struct json_object *json_can_data = nullptr; ::memset(&cf, 0, sizeof(cf)); - cf.can_id = can_id; - cf.can_dlc = can_dlc; - - struct json_object *x; - size_t n = json_object_array_length(can_data); - if(n <= 8) + if(! wrap_json_unpack(json_value, "{sF, sF, so !}", + "can_id", &cf.can_id, + "can_dlc", &cf.can_dlc, + "can_data", &json_can_data)) { - for (int i = 0 ; i < n ; i++) + struct json_object *one_can_data; + size_t n = json_object_array_length(json_can_data); + + if(n <= 8 && n > 0) + { + for (int i = 0 ; i < n ; i++) + { + one_can_data = json_object_array_get_idx(json_can_data, i); + cf.data[i] = json_object_get_type(one_can_data) == json_type_int ? (uint8_t)json_object_get_int(one_can_data) : 0; + } + } + else { - x = json_object_array_get_idx(can_data, i); - cf.data[i] = json_object_get_type(x) == json_type_int ? (uint8_t)json_object_get_int(x) : 0; + afb_req_fail(request, "Error", "Data array must hold 1 to 8 values."); + return; } - } - const std::string found_device = application_t::instance().get_can_bus_manager().get_can_device_name(bus_name); - if( ! found_device.empty()) - { - rc = send_frame(found_device, cf); + if(! send_frame(application_t::instance().get_can_bus_manager().get_can_device_name(bus_name), cf)) + afb_req_success(request, nullptr, "Message correctly sent"); + else + afb_req_fail(request, "Error", "sending the message. See the log for more details."); + + return; } - return rc; + afb_req_fail(request, "Error", "Frame object malformed (must be \n \"frame\": {\"can_id\": int, \"can_dlc\": int, \"can_data\": [ int, int , int, int ,int , int ,int ,int]}"); } -static int write_signal(const std::string& name, uint64_t value) + +static void write_signal(afb_req_t request, const std::string& name, json_object *json_value) { - int rc = 0; struct can_frame cf; struct utils::signals_found sf; + signal_encoder encoder = nullptr; + bool send = true; ::memset(&cf, 0, sizeof(cf)); openxc_DynamicField search_key = build_DynamicField(name); sf = utils::signals_manager_t::instance().find_signals(search_key); + openxc_DynamicField dynafield_value = build_DynamicField(json_value); if (sf.can_signals.empty()) { - AFB_WARNING("No signal(s) found for %s. Message not sent.", name.c_str()); - rc = -1; + afb_req_fail_f(request, "No signal(s) found for %s. Message not sent.", name.c_str()); + return; } - else + + std::shared_ptr<can_signal_t>& sig = sf.can_signals[0]; + if(! sig->get_writable()) { - for(const auto& sig: sf.can_signals) - { - if(sig->get_writable()) - { - cf = encoder_t::build_frame(sig, value); - const std::string bus_name = sig->get_message()->get_bus_device_name(); - rc = send_frame(bus_name, cf); - } - else - { - AFB_WARNING("%s isn't writable. Message not sent.", sig->get_name().c_str()); - return -1; - } - } + afb_req_fail_f(request, "%s isn't writable. Message not sent.", sig->get_name().c_str()); + return; } - return rc; + uint64_t value = (encoder = sig->get_encoder()) ? + encoder(*sig, dynafield_value, &send) : + encoder_t::encode_DynamicField(*sig, dynafield_value, &send); + + if(! send_frame(sig->get_message()->get_bus_device_name(), encoder_t::build_frame(sig, value)) && + send) + afb_req_success(request, nullptr, "Message correctly sent"); + else + afb_req_fail(request, "Error", "Sending the message. See the log for more details."); } void write(afb_req_t request) { - int rc = 0; - struct json_object* args = nullptr, - *json_name = nullptr, - *json_value = nullptr; + struct json_object* args = nullptr, *json_value = nullptr; + const char *name = nullptr; args = afb_req_json(request); // Process about Raw CAN message on CAN bus directly - if (args != NULL && - (json_object_object_get_ex(args, "bus_name", &json_name) && json_object_is_type(json_name, json_type_string) ) && - (json_object_object_get_ex(args, "frame", &json_value) && json_object_is_type(json_value, json_type_object) )) - { - struct json_object* json_can_id = nullptr, - *json_can_dlc = nullptr, - *json_can_data = nullptr; + if (args != NULL && ! wrap_json_unpack(args, "{ss, so !}", + "bus_name", &name, + "frame", &json_value)) + write_raw_frame(request, name, json_value); - if( (json_object_object_get_ex(json_value, "can_id", &json_can_id) && (json_object_is_type(json_can_id, json_type_double) || json_object_is_type(json_can_id, json_type_int))) && - (json_object_object_get_ex(json_value, "can_dlc", &json_can_dlc) && (json_object_is_type(json_can_dlc, json_type_double) || json_object_is_type(json_can_dlc, json_type_int))) && - (json_object_object_get_ex(json_value, "can_data", &json_can_data) && json_object_is_type(json_can_data, json_type_array) )) - { - rc = write_raw_frame(json_object_get_string(json_name), - json_object_get_int(json_can_id), - (uint8_t)json_object_get_int(json_can_dlc), - json_can_data); - } - else - { - AFB_ERROR("Frame object malformed (must be \n \"frame\": {\"can_id\": int, \"can_dlc\": int, \"can_data\": [ int, int , int, int ,int , int ,int ,int]}"); - rc = -1; - } - } // Search signal then encode value. else if(args != NULL && - (json_object_object_get_ex(args, "signal_name", &json_name) && json_object_is_type(json_name, json_type_string)) && - (json_object_object_get_ex(args, "signal_value", &json_value) && (json_object_is_type(json_value, json_type_double) || json_object_is_type(json_value, json_type_int)))) - { - rc = write_signal(json_object_get_string(json_name), - (uint64_t)json_object_get_double(json_value)); - } + ! wrap_json_unpack(args, "{ss, so !}", + "signal_name", &name, + "signal_value", &json_value)) + write_signal(request, std::string(name), json_value); else - { - AFB_ERROR("Request argument malformed. Please use the following syntax:"); - rc = -1; - } - - if (rc >= 0) - afb_req_success(request, NULL, NULL); - else - afb_req_fail(request, "error", NULL); + afb_req_fail(request, "Error", "Request argument malformed"); } static struct json_object *get_signals_value(const std::string& name) |