meta-agl - meta-agl layer (core AGL)

Age	Commit message (Expand)	Author	Files	Lines
2019-07-24	add markdown documentation for all machines and features	Stéphane Desneux	1	-0/+9
2019-06-10	Changes to support the repo clone rework	Jan-Simon Möller	1	-1/+1
2017-05-16	Add machine templates for the beaglebone	Jan-Simon Möller	2	-0/+4

/* * Copyright (C) 2015, 2016 "IoT.bzh" * Author "Romain Forlot" <romain.forlot@iot.bzh> * Author "Loic Collignon" <loic.collignon@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 "low-can-binding.hpp" /******************************************************************************** * * Event management * *********************************************************************************/ /******************************************************************************** * * Subscription and unsubscription * *********************************************************************************/ static int subscribe_unsubscribe_signal(struct afb_req request, bool subscribe, const CanSignal& sig) { int ret; // TODO: lock the subscribed_signals when insert/remove const auto& ss_i = subscribed_signals.find(sig.genericName); if (ss_i != subscribed_signals.end()) { if(!afb_event_is_valid(ss_i->second)) { if(!subscribe) { NOTICE(interface, "Event isn't valid, it can't be unsubscribed."); ret = 1; } else { ss_i->second = afb_daemon_make_event(interface->daemon, ss_i->first.c_str()); if (!afb_event_is_valid(ss_i->second)) { ERROR(interface, "Can't create an event, something goes wrong."); ret = 0; } } } } else { subscribed_signals[sig.genericName] = afb_daemon_make_event(interface->daemon, sig.genericName); if (!afb_event_is_valid(ss_i->second)) { ERROR(interface, "Can't create an event, something goes wrong."); ret = 0; } } if (((subscribe ? afb_req_subscribe : afb_req_unsubscribe)(request, subscribed_signals[sig.genericName])) < 0) { ERROR(interface, "Operation goes wrong for signal: %s", sig.genericName); ret = 0; } else ret = 1; return ret; } static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe, const std::vector<CanSignal>& signals) { int ret = 0; for(const auto& signal_i : signals) { ret = subscribe_unsubscribe_signal(request, subscribe, signal_i); if(ret == 0) return ret; } return ret; } static int subscribe_unsubscribe_all(struct afb_req request, bool subscribe) { int e = 0; //for (const auto& sig : SIGNALS) // e += !subscribe_unsubscribe_signals(request, subscribe, sig); e += !subscribe_unsubscribe_signals(request, subscribe, getSignals()); return e == 0; } static int subscribe_unsubscribe_name(struct afb_req request, bool subscribe, const char *name) { std::vector<CanSignal> sig; int ret = 0; if (!::strcmp(name, "*")) ret = subscribe_unsubscribe_all(request, subscribe); else { //if(obd2_handler_c.is_obd2_signal(name)) if(false) { // TODO } else { openxc_DynamicField search_key = build_DynamicField(name); sig = find_can_signals(interface, search_key); if (sig.empty()) ret = 0; } ret = subscribe_unsubscribe_signals(request, subscribe, sig); } return ret; } static void subscribe_unsubscribe(struct afb_req request, bool subscribe) { int ok, i, n; struct json_object *args, *a, *x; /* makes the subscription/unsubscription */ args = afb_req_json(request); if (args == NULL || !json_object_object_get_ex(args, "event", &a)) { ok = subscribe_unsubscribe_all(request, subscribe); } else if (json_object_get_type(a) != json_type_array) { ok = subscribe_unsubscribe_name(request, subscribe, json_object_get_string(a)); } else { n = json_object_array_length(a); ok = 0; for (i = 0 ; i < n ; i++) { x = json_object_array_get_idx(a, i); if (subscribe_unsubscribe_name(request, subscribe, json_object_get_string(x))) ok++; } ok = (ok == n); } /* send the report */ if (ok) afb_req_success(request, NULL, NULL); else afb_req_fail(request, "error", NULL); } static const struct afb_verb_desc_v1 verbs[]= { { .name= "subscribe", .session= AFB_SESSION_NONE, .callback= subscribe, .info= "subscribe to notification of CAN bus messages." }, { .name= "unsubscribe", .session= AFB_SESSION_NONE, .callback= unsubscribe, .info= "unsubscribe a previous subscription." } }; static const struct afb_binding binding_desc { AFB_BINDING_VERSION_1, { "CAN bus service", "can", verbs } }; extern "C" { static void subscribe(struct afb_req request) { subscribe_unsubscribe(request, true); } static void unsubscribe(struct afb_req request) { subscribe_unsubscribe(request, false); } const struct afb_binding *afbBindingV1Register (const struct afb_binding_interface *itf) { interface = itf; return &binding_desc; } /** * @brief Initialize the binding. * * @param[in] service Structure which represent the Application Framework Binder. * * @return Exit code, zero if success. */ int afbBindingV1ServiceInit(struct afb_service service) { int fd_conf; fd_conf = afb_daemon_rootdir_open_locale(interface->daemon, "can_bus.json", O_RDONLY, NULL); /* Open CAN socket */ can_bus_t can_bus_handler(interface, fd_conf); if(can_bus_handler.init_can_dev() == 0) { can_bus_handler.start_threads(); return 0; } return 1; } };