implementing kvstore for unor4

Author: andreagilardoni

src/kvstore/implementation/UnoR4.h

@@ -1,15 +1,44 @@
+/*
+ * This file is part of Arduino_KVStore.
+ *
+ * Copyright (c) 2024 Arduino SA
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+#pragma once
+
 #include "../kvstore.h"
+#include <Arduino.h>
+#include <Modem.h>
+#include <string>
+
+using namespace std;
+
+constexpr char DEFAULT_KVSTORE_NAME[] = "arduino";
 
 class Unor4KVStore: public KVStoreInterface {
 public:
-    void begin();
-    void end();
-    void clear();
+    Unor4KVStore(): name(DEFAULT_KVSTORE_NAME) {}
+
+    bool begin() override;
+    bool begin(const char* name, bool readOnly=false, const char* partitionLabel=nullptr);
+    bool end() override;
+    bool clear() override;
+
+    typename KVStoreInterface::res_t remove(const key_t& key) override;
+    bool exists(const key_t& key) const override;
+    typename KVStoreInterface::res_t putBytes(const key_t& key, const uint8_t b[], size_t s) override;
+    typename KVStoreInterface::res_t getBytes(const key_t& key, uint8_t b[], size_t s) const override;
+    size_t getBytesLength(const key_t& key) const override;
 
-    typename KVStoreInterface<Key>::res_t remove(const Key& key) override;
-    bool exists(const Key& key) const override;
-    typename KVStoreInterface<Key>::res_t putBytes(const Key& key, uint8_t b[], size_t s) override;
-    typename KVStoreInterface<Key>::res_t getBytes(const Key& key, uint8_t b[], size_t s) const override;
-    size_t getBytesLength(Key key) const override;
+    size_t getString(const key_t& key, char value[], size_t maxLen) override;
+    String getString(const key_t& key, const String defaultValue = String()) override;
 
-}
+protected:
+    res_t _put(const key_t& key, const uint8_t value[], size_t len, Type t) override;
+    res_t _get(const key_t& key, uint8_t value[], size_t len, Type t) override;
+private:
+    const char* name;
+};