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authorJosé Bollo <jose.bollo@iot.bzh>2018-04-09 18:16:07 +0200
committerJosé Bollo <jose.bollo@iot.bzh>2018-06-15 17:57:36 +0200
commit4521c1e7ae5371ab9d639adc617d17fb4e8ded0c (patch)
treea8a1416a2d58c16ab3993c7e4dc405fc71daab6a /include/afb/afb-api-x3-itf.h
parent63682b4da9d3e892d1d0a671de860adc43068142 (diff)
api-v3: First draft
This commit introduces the bindings v3 API for bindings. The documentation has still to be improved and will come very soon. Change-Id: I8f9007370e29f671fdfd1da87fff7372a17db7af Signed-off-by: José Bollo <jose.bollo@iot.bzh>
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diff --git a/include/afb/afb-api-x3-itf.h b/include/afb/afb-api-x3-itf.h
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+/*
+ * Copyright (C) 2016, 2017, 2018 "IoT.bzh"
+ * Author: José Bollo <jose.bollo@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.
+ */
+
+#pragma once
+
+/* declared here */
+struct afb_api_x3;
+struct afb_api_x3_itf;
+
+/* referenced here */
+struct sd_event;
+struct sd_bus;
+struct afb_req_x2;
+struct afb_event_x2;
+struct afb_auth;
+struct afb_verb_v2;
+struct afb_verb_v3;
+
+/**
+ * Structure for the APIv3
+ */
+struct afb_api_x3
+{
+ /**
+ * Interface functions
+ *
+ * Don't use it directly, prefer helper functions.
+ */
+ const struct afb_api_x3_itf *itf;
+
+ /**
+ * The name of the api
+ *
+ * @see afb_api_x3_name
+ */
+ const char *apiname;
+
+ /**
+ * User defined data
+ *
+ * @see afb_api_x3_set_userdata
+ * @see afb_api_x3_get_userdata
+ */
+ void *userdata;
+
+ /**
+ * Current verbosity mask
+ *
+ * The bits tells what verbosity is required for the api.
+ * It is related to the syslog levels.
+ *
+ * EMERGENCY 0 System is unusable
+ * ALERT 1 Action must be taken immediately
+ * CRITICAL 2 Critical conditions
+ * ERROR 3 Error conditions
+ * WARNING 4 Warning conditions
+ * NOTICE 5 Normal but significant condition
+ * INFO 6 Informational
+ * DEBUG 7 Debug-level messages
+ */
+ int logmask;
+};
+
+/**
+ * Definition of the function's interface for the APIv3
+ */
+struct afb_api_x3_itf
+{
+ /* CAUTION: respect the order, add at the end */
+
+ /** sending log messages */
+ void (*vverbose)(
+ struct afb_api_x3 *api,
+ int level,
+ const char *file,
+ int line,
+ const char * func,
+ const char *fmt,
+ va_list args);
+
+ /** gets the common systemd's event loop */
+ struct sd_event *(*get_event_loop)(
+ struct afb_api_x3 *api);
+
+ /** gets the common systemd's user d-bus */
+ struct sd_bus *(*get_user_bus)(
+ struct afb_api_x3 *api);
+
+ /** gets the common systemd's system d-bus */
+ struct sd_bus *(*get_system_bus)(
+ struct afb_api_x3 *api);
+
+ /** get the file descriptor for the root directory */
+ int (*rootdir_get_fd)(
+ struct afb_api_x3 *api);
+
+ /** get a file using locale setting */
+ int (*rootdir_open_locale)(
+ struct afb_api_x3 *api,
+ const char *filename,
+ int flags,
+ const char *locale);
+
+ /** queue a job */
+ int (*queue_job)(
+ struct afb_api_x3 *api,
+ void (*callback)(int signum, void *arg),
+ void *argument,
+ void *group,
+ int timeout);
+
+ /** requires an api initialized or not */
+ int (*require_api)(
+ struct afb_api_x3 *api,
+ const char *name,
+ int initialized);
+
+ /** add an alias */
+ int (*add_alias)(
+ struct afb_api_x3 *api,
+ const char *name,
+ const char *as_name);
+
+ /** broadcasts event 'name' with 'object' */
+ int (*event_broadcast)(
+ struct afb_api_x3 *api,
+ const char *name,
+ struct json_object *object);
+
+ /** creates an event of 'name' */
+ struct afb_event_x2 *(*event_make)(
+ struct afb_api_x3 *api,
+ const char *name);
+
+ /** legacy asynchronous invocation */
+ void (*legacy_call)(
+ struct afb_api_x3 *api,
+ const char *apiname,
+ const char *verb,
+ struct json_object *args,
+ void (*callback)(void*, int, struct json_object*, struct afb_api_x3 *),
+ void *closure);
+
+ /** legacy synchronous invocation */
+ int (*legacy_call_sync)(
+ struct afb_api_x3 *api,
+ const char *apiname,
+ const char *verb,
+ struct json_object *args,
+ struct json_object **result);
+
+ /** creation of a new api*/
+ struct afb_api_x3 *(*api_new_api)(
+ struct afb_api_x3 *api,
+ const char *apiname,
+ const char *info,
+ int noconcurrency,
+ int (*preinit)(void*, struct afb_api_x3 *),
+ void *closure);
+
+ /** set verbs of the api using v2 description */
+ int (*api_set_verbs_v2)(
+ struct afb_api_x3 *api,
+ const struct afb_verb_v2 *verbs);
+
+ /** add one verb to the api */
+ int (*api_add_verb)(
+ struct afb_api_x3 *api,
+ const char *verb,
+ const char *info,
+ void (*callback)(struct afb_req_x2 *req),
+ void *vcbdata,
+ const struct afb_auth *auth,
+ uint32_t session,
+ int glob);
+
+ /** delete one verb of the api */
+ int (*api_del_verb)(
+ struct afb_api_x3 *api,
+ const char *verb,
+ void **vcbdata);
+
+ /** set the api's callback for processing events */
+ int (*api_set_on_event)(
+ struct afb_api_x3 *api,
+ void (*onevent)(struct afb_api_x3 *api, const char *event, struct json_object *object));
+
+ /** set the api's callback for initialisation */
+ int (*api_set_on_init)(
+ struct afb_api_x3 *api,
+ int (*oninit)(struct afb_api_x3 *api));
+
+ /** seal the api */
+ void (*api_seal)(
+ struct afb_api_x3 *api);
+
+ /** set verbs of the api using v3 description */
+ int (*api_set_verbs_v3)(
+ struct afb_api_x3 *api,
+ const struct afb_verb_v3 *verbs);
+
+ /** add an event handler for the api */
+ int (*event_handler_add)(
+ struct afb_api_x3 *api,
+ const char *pattern,
+ void (*callback)(void *, const char*, struct json_object*, struct afb_api_x3*),
+ void *closure);
+
+ /** delete an event handler of the api */
+ int (*event_handler_del)(
+ struct afb_api_x3 *api,
+ const char *pattern,
+ void **closure);
+
+ /** asynchronous call for the api */
+ void (*call)(
+ struct afb_api_x3 *api,
+ const char *apiname,
+ const char *verb,
+ struct json_object *args,
+ void (*callback)(void*, struct json_object*, const char*, const char*, struct afb_api_x3 *),
+ void *closure);
+
+ /** synchronous call for the api */
+ int (*call_sync)(
+ struct afb_api_x3 *api,
+ const char *apiname,
+ const char *verb,
+ struct json_object *args,
+ struct json_object **result,
+ char **error,
+ char **info);
+
+ /** indicate provided classes of the api */
+ int (*class_provide)(
+ struct afb_api_x3 *api,
+ const char *name);
+
+ /** indicate required classes of the api */
+ int (*class_require)(
+ struct afb_api_x3 *api,
+ const char *name);
+
+ /** delete the api */
+ int (*delete_api)(
+ struct afb_api_x3 *api);
+};
+