From 99914a58a2d5b2638e2c1fdac5ca74a2d247e6fa Mon Sep 17 00:00:00 2001 From: Romain Forlot Date: Wed, 7 Nov 2018 10:54:01 +0100 Subject: First simple platform-info API implementation Bug-AGL: SPEC-1917 Change-Id: I300155302c9d69c6549ddabc6af53e2ad55eb18d Signed-off-by: Romain Forlot --- src/platform-info-binding.c | 125 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 125 insertions(+) create mode 100644 src/platform-info-binding.c (limited to 'src/platform-info-binding.c') diff --git a/src/platform-info-binding.c b/src/platform-info-binding.c new file mode 100644 index 0000000..c6bc9fd --- /dev/null +++ b/src/platform-info-binding.c @@ -0,0 +1,125 @@ +/* + * Copyright (C) 2016, 2018 "IoT.bzh" + * + * Author "Romain Forlot" + * + * 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. + */ + +#define _GNU_SOURCE +#include +#include +#include + +#include +#include "platform-info-binding.h" + +#ifndef PLATFORM_INFO_DIR +#define PLATFORM_INFO_DIR "/etc/platform-info" +#endif + +#ifndef HOTPLUG_NS +#define HOTPLUG_NS "hotplug" +#endif + +void afv_get(afb_req_t req) { + char *json_path = NULL, *full_json_path = NULL; + json_object *platform_info = (json_object*) afb_api_get_userdata(req->api); + json_object *args = afb_req_json(req), *result = NULL; + + switch (json_object_get_type(args)) { + case json_type_null: + result = platform_info; + break; + case json_type_string: + full_json_path = strdupa(json_object_get_string(args)); + result = platform_info; + for(json_path = strtok(full_json_path, "."); json_path && *json_path; json_path = strtok(NULL, ".")) { + if(! json_object_object_get_ex(result, json_path, &result)) { + afb_req_fail(req, "A key hasn't been found in JSON path.", json_path); + return; + } + } + break; + default: + afb_req_fail(req, "Type error", "Argument type is unknown, you must provide a string only"); + return; + } + + afb_req_success(req, result, NULL); +} + +void afv_set(afb_req_t req) { + json_object *platform_info = (json_object*) afb_api_get_userdata(req->api); + json_object *args = afb_req_json(req); + +#if (JSON_C_VERSION_MAJOR_VERSION == 0 && JSON_C_VERSION_MINOR_VERSION >= 13) + if(json_object_object_add(platform_info, HOTPLUG_NS, args)) { + afb_req_fail(req, "Addition fails", NULL); + return; + } +#else + json_object_object_add(platform_info, HOTPLUG_NS, args); +#endif + + afb_req_success(req, NULL, NULL); +} + +// TODO RFOR: interface with inotify and udev +void afv_unsubscribe(afb_req_t req) { + afb_req_success(req, NULL, NULL); +} + +void afv_subscribe(afb_req_t req) { + afb_req_success(req, NULL, NULL); +} + +int init(afb_api_t api) { + struct dirent* dir_ent = NULL; + DIR* dir_handle = opendir(PLATFORM_INFO_DIR); + json_object *json_file = json_object_new_object(), *current_file = NULL; + + while( (dir_ent = readdir(dir_handle)) != NULL) { + if(dir_ent->d_type == DT_REG && dir_ent->d_name[0] != '.') { + size_t filepath_len = strlen(PLATFORM_INFO_DIR) + strlen(dir_ent->d_name) + 2; + char *filepath = alloca(filepath_len); + + filepath = strncpy(filepath, PLATFORM_INFO_DIR, filepath_len); + filepath = strncat(filepath, "/", filepath_len - strlen(filepath) - 1); + filepath = strncat(filepath, dir_ent->d_name, filepath_len - strlen(filepath) - 1); + + AFB_DEBUG("File in processing: %s", filepath); + current_file = json_object_from_file(filepath); +#if (JSON_C_VERSION_MAJOR_VERSION == 0 && JSON_C_VERSION_MINOR_VERSION >= 13) + const char *error = NULL; + if( (error = json_util_get_last_err()) ) { + AFB_NOTICE("This file '%s' isn't a JSON file or have error: %s. len: %ld", filepath, error, filepath_len); + continue; + } +#else + if( current_file == NULL ) { + AFB_NOTICE("This file '%s' isn't a JSON file or have error.", filepath); + continue; + } +#endif + wrap_json_object_add(json_file, current_file); + AFB_DEBUG("JSON loaded: %s", json_object_get_string(json_file)); + } + } + + // Initializing the platform_info binding object and associated it to + // the api + afb_api_set_userdata(api, (void*)json_file); + + return 0; +} -- cgit 1.2.3-korg