replaced store binding with a database binding based on a berkeley db

Change-Id: I03978ecbf996ebc6d53a88dfd2b275051080016f
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 72 insertions, 0 deletions

diff --git a/ll-database-binding/src/utils.h b/ll-database-binding/src/utils.h
new file mode 100644
index 0000000..093d591
--- /dev/null
+++ b/ll-database-binding/src/utils.h
@@ -0,0 +1,72 @@
+/*
+* Copyright 2017 IoT.bzh
+*
+* author: Loïc 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.
+*/
+
+#ifndef _BINDING_UTILS_H_
+#define _BINDING_UTILS_H_
+
+#include <string.h>
+#include <json-c/json.h>
+
+#ifndef AFB_BINDING_VERSION
+#define AFB_BINDING_VERSION 2
+#endif
+#include <afb/afb-binding.h>
+
+#define REGISTER_VERB(n, a, i, s) { .verb = #n, .callback = verb_##n, .auth = a, .info = i, .session = s }
+
+/**
+ * @brief Get a string from a json object.
+ * @param[in] obj Json object from wich the string is queried.
+ * @param[in] name Name of the string to get.
+ * @return The string value.
+ */
+static inline const char* get_json_string(struct json_object* obj, const char* name)
+{
+	struct json_object* item = NULL;
+	if (!obj || !name || !strlen(name)) return NULL;
+	if (!json_object_object_get_ex(obj, name, &item) || !item) return NULL;
+	return json_object_get_string(item);
+}
+
+/**
+ * @brief Add a string key/value to a json object.
+ * @param[in] obj The json object to which the key/value is added.
+ * @param[in] key The key to add.
+ * @param[in] value The value to add.
+ */
+static inline void json_object_add_string(struct json_object* obj, const char* key, const char* value)
+{
+	json_object_object_add(obj, key, json_object_new_string(value));
+}
+
+/**
+ * @brief Send an @c event with the specified @c message then fail with the same @c message.
+ * @param[in] req The query to fail.
+ * @param[in] event The event to push.
+ * @param[in] message The message to push with the event and use as a fail message.
+ */
+static inline void afb_fail_ex(struct afb_req req, struct afb_event event, const char* message)
+{
+	struct json_object* result = json_object_new_object();
+	json_object_add_string(result, "message", message);
+	afb_event_push(event, result);
+	
+	afb_req_fail(req, message, NULL);
+}
+
+#endif // _BINDING_UTILS_H_