Files
thirdparty-ArduinoJson/include/ArduinoJson/StaticJsonBuffer.hpp
2014-11-08 17:13:41 +01:00

37 lines
768 B
C++

// Copyright Benoit Blanchon 2014
// MIT License
//
// Arduino JSON library
// https://github.com/bblanchon/ArduinoJson
#pragma once
#include "JsonBuffer.hpp"
namespace ArduinoJson {
// Implements a JsonBuffer with fixed memory allocation.
// The template paramenter CAPACITY specifies the capacity of the buffer in
// bytes.
template <size_t CAPACITY>
class StaticJsonBuffer : public JsonBuffer {
public:
explicit StaticJsonBuffer() : _size(0) {}
size_t capacity() const { return CAPACITY; }
size_t size() const { return _size; }
protected:
virtual void* alloc(size_t size) {
if (_size + size > CAPACITY) return NULL;
void* p = &_buffer[_size];
_size += size;
return p;
}
private:
uint8_t _buffer[CAPACITY];
size_t _size;
};
}