Introduce afb_request

This prepares the new api with pointers.

Change-Id: I4eb299551145226e428934b6835a1a7810ae6439
Signed-off-by: José Bollo <jose.bollo@iot.bzh>

1 files changed, 167 insertions, 0 deletions

diff --git a/include/afb/afb-request-itf.h b/include/afb/afb-request-itf.h
new file mode 100644
index 00000000..f28788ee
--- /dev/null
+++ b/include/afb/afb-request-itf.h
@@ -0,0 +1,167 @@
+/*
+ * 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
+
+/* defined here */
+struct afb_arg;
+struct afb_request;
+struct afb_request_itf;
+
+/* referenced here */
+#include <stdarg.h>
+struct json_object;
+struct afb_req;
+struct afb_event;
+struct afb_eventid;
+struct afb_stored_req;
+
+/*
+ * Describes an argument (or parameter) of a request
+ */
+struct afb_arg
+{
+	const char *name;	/* name of the argument or NULL if invalid */
+	const char *value;	/* string representation of the value of the argument */
+				/* original filename of the argument if path != NULL */
+	const char *path;	/* if not NULL, path of the received file for the argument */
+				/* when the request is finalized this file is removed */
+};
+
+struct afb_request
+{
+	const struct afb_request_itf *itf;
+};
+
+/*
+ * Interface for handling requests.
+ * It records the functions to be called for the request.
+ * Don't use this structure directly.
+ * Use the helper functions
+ */
+struct afb_request_itf
+{
+	/* CAUTION: respect the order, add at the end */
+
+	struct json_object *(*json)(
+			struct afb_request *request);
+
+	struct afb_arg (*get)(
+			struct afb_request *request,
+			const char *name);
+
+	void (*success)(
+			struct afb_request *request,
+			struct json_object *obj,
+			const char *info);
+
+	void (*fail)(
+			struct afb_request *request,
+			const char *status,
+			const char *info);
+
+	void (*vsuccess)(
+			struct afb_request *request,
+			struct json_object *obj,
+			const char *fmt,
+			va_list args);
+
+	void (*vfail)(
+			struct afb_request *request,
+			const char *status,
+			const char *fmt,
+			va_list args);
+
+	void *(*context_get)(
+			struct afb_request *request);
+
+	void (*context_set)(
+			struct afb_request *request,
+			void *value,
+			void (*free_value)(void*));
+
+	void (*addref)(
+			struct afb_request *request);
+
+	void (*unref)(
+			struct afb_request *request);
+
+	void (*session_close)(
+			struct afb_request *request);
+
+	int (*session_set_LOA)(
+			struct afb_request *request,
+			unsigned level);
+
+	int (*subscribe)(
+			struct afb_request *request,
+			struct afb_event event);
+
+	int (*unsubscribe)(
+			struct afb_request *request,
+			struct afb_event event);
+
+	void (*subcall)(
+			struct afb_request *request,
+			const char *api,
+			const char *verb,
+			struct json_object *args,
+			void (*callback)(void*, int, struct json_object*),
+			void *cb_closure);
+
+	int (*subcallsync)(
+			struct afb_request *request,
+			const char *api,
+			const char *verb,
+			struct json_object *args,
+			struct json_object **result);
+
+	void (*vverbose)(
+			struct afb_request *request,
+			int level,
+			const char *file,
+			int line,
+			const char * func,
+			const char *fmt,
+			va_list args);
+
+	struct afb_stored_req *(*store)(
+			struct afb_request *request);
+
+	void (*subcall_req)(
+			struct afb_request *request,
+			const char *api,
+			const char *verb,
+			struct json_object *args,
+			void (*callback)(void*, int, struct json_object*, struct afb_req),
+			void *cb_closure);
+
+	int (*has_permission)(
+			struct afb_request *request,
+			const char *permission);
+
+	char *(*get_application_id)(
+			struct afb_request *request);
+
+	void *(*context_make)(
+			struct afb_request *request,
+			int replace,
+			void *(*create_value)(void *creation_closure),
+			void (*free_value)(void*),
+			void *creation_closure);
+};
+