Allow dynamic creation of APIs

Change-Id: I825bfa7969c98dd214457d9ff94e2948362286a9
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

1 files changed, 161 insertions, 0 deletions

diff --git a/include/afb/afb-dynapi-itf.h b/include/afb/afb-dynapi-itf.h
new file mode 100644
index 00000000..dd291ae8
--- /dev/null
+++ b/include/afb/afb-dynapi-itf.h
@@ -0,0 +1,161 @@
+/*
+ * Copyright (C) 2016, 2017 "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_dynapi;
+struct afb_dynapi_itf;
+
+/* referenced here */
+#include <stdarg.h>
+struct sd_event;
+struct sd_bus;
+struct afb_request;
+struct afb_eventid;
+struct afb_auth;
+struct afb_verb_v2;
+
+/*
+ * structure for the dynapi
+ */
+struct afb_dynapi
+{
+	/* interface for the dynapi */
+	const struct afb_dynapi_itf *itf;
+
+	/* user defined data */
+	void *userdata;
+
+	/* current verbosity level */
+	int verbosity;
+};
+
+/*
+ * Definition of the interface for the API
+ */
+struct afb_dynapi_itf
+{
+	/* CAUTION: respect the order, add at the end */
+
+	void (*vverbose)(
+		void *dynapi,
+		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)(
+		void *dynapi);
+
+	/* gets the common systemd's user d-bus */
+	struct sd_bus *(*get_user_bus)(
+		void *dynapi);
+
+	/* gets the common systemd's system d-bus */
+	struct sd_bus *(*get_system_bus)(
+		void *dynapi);
+
+	int (*rootdir_get_fd)(
+		void *dynapi);
+
+	int (*rootdir_open_locale)(
+		void *dynapi,
+		const char *filename,
+		int flags,
+		const char *locale);
+
+	int (*queue_job)(
+		void *dynapi,
+		void (*callback)(int signum, void *arg),
+		void *argument,
+		void *group,
+		int timeout);
+
+	int (*require_api)(
+		void *dynapi,
+		const char *name,
+		int initialized);
+
+	int (*rename_api)(
+		void *dynapi,
+		const char *name);
+
+	/* broadcasts event 'name' with 'object' */
+	int (*event_broadcast)(
+		void *dynapi,
+		const char *name,
+		struct json_object *object);
+
+	/* creates an event of 'name' */
+	struct afb_eventid *(*eventid_make)(
+		void *dynapi,
+		const char *name);
+
+	void (*call)(
+		struct afb_dynapi *dynapi,
+		const char *api,
+		const char *verb,
+		struct json_object *args,
+		void (*callback)(void*, int, struct json_object*, struct afb_dynapi *),
+		void *callback_closure);
+
+	int (*call_sync)(
+		void *dynapi,
+		const char *api,
+		const char *verb,
+		struct json_object *args,
+		struct json_object **result);
+
+	int (*api_new_api)(
+		void *dynapi,
+		const char *api,
+		const char *info,
+		int (*preinit)(void*, struct afb_dynapi *),
+		void *closure);
+
+	int (*api_set_verbs_v2)(
+		struct afb_dynapi *dynapi,
+		const struct afb_verb_v2 *verbs);
+
+	int (*api_add_verb)(
+		struct afb_dynapi *dynapi,
+		const char *verb,
+		const char *info,
+		void (*callback)(struct afb_request *request),
+		const struct afb_auth *auth,
+		uint32_t session);
+
+	int (*api_sub_verb)(
+		struct afb_dynapi *dynapi,
+		const char *verb);
+
+	int (*api_set_on_event)(
+		struct afb_dynapi *dynapi,
+		void (*onevent)(struct afb_dynapi *dynapi, const char *event, struct json_object *object));
+
+	int (*api_set_on_init)(
+		struct afb_dynapi *dynapi,
+		int (*oninit)(struct afb_dynapi *dynapi));
+
+	void (*api_seal)(
+		struct afb_dynapi *dynapi);
+};
+