da8b7c1b80
* overload Preferences.getBytes similar to nvs so you can get size of the array. * Cleaner implentation, with a separate function to get length. Added an example
72 lines
3.1 KiB
C++
72 lines
3.1 KiB
C++
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// 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 _PREFERENCES_H_
|
|
#define _PREFERENCES_H_
|
|
|
|
#include "Arduino.h"
|
|
|
|
class Preferences {
|
|
protected:
|
|
uint32_t _handle;
|
|
bool _started;
|
|
bool _readOnly;
|
|
public:
|
|
Preferences();
|
|
~Preferences();
|
|
|
|
bool begin(const char * name, bool readOnly=false);
|
|
void end();
|
|
|
|
bool clear();
|
|
bool remove(const char * key);
|
|
|
|
size_t putChar(const char* key, int8_t value);
|
|
size_t putUChar(const char* key, uint8_t value);
|
|
size_t putShort(const char* key, int16_t value);
|
|
size_t putUShort(const char* key, uint16_t value);
|
|
size_t putInt(const char* key, int32_t value);
|
|
size_t putUInt(const char* key, uint32_t value);
|
|
size_t putLong(const char* key, int32_t value);
|
|
size_t putULong(const char* key, uint32_t value);
|
|
size_t putLong64(const char* key, int64_t value);
|
|
size_t putULong64(const char* key, uint64_t value);
|
|
size_t putFloat(const char* key, float_t value);
|
|
size_t putDouble(const char* key, double_t value);
|
|
size_t putBool(const char* key, bool value);
|
|
size_t putString(const char* key, const char* value);
|
|
size_t putString(const char* key, String value);
|
|
size_t putBytes(const char* key, const void* value, size_t len);
|
|
|
|
int8_t getChar(const char* key, int8_t defaultValue = 0);
|
|
uint8_t getUChar(const char* key, uint8_t defaultValue = 0);
|
|
int16_t getShort(const char* key, int16_t defaultValue = 0);
|
|
uint16_t getUShort(const char* key, uint16_t defaultValue = 0);
|
|
int32_t getInt(const char* key, int32_t defaultValue = 0);
|
|
uint32_t getUInt(const char* key, uint32_t defaultValue = 0);
|
|
int32_t getLong(const char* key, int32_t defaultValue = 0);
|
|
uint32_t getULong(const char* key, uint32_t defaultValue = 0);
|
|
int64_t getLong64(const char* key, int64_t defaultValue = 0);
|
|
uint64_t getULong64(const char* key, uint64_t defaultValue = 0);
|
|
float_t getFloat(const char* key, float_t defaultValue = NAN);
|
|
double_t getDouble(const char* key, double_t defaultValue = NAN);
|
|
bool getBool(const char* key, bool defaultValue = false);
|
|
size_t getString(const char* key, char* value, size_t maxLen);
|
|
String getString(const char* key, String defaultValue = String());
|
|
size_t getBytesLength(const char* key);
|
|
size_t getBytes(const char* key, void * buf, size_t maxLen);
|
|
size_t freeEntries();
|
|
};
|
|
|
|
#endif
|