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68 lines
1.3 KiB
68 lines
1.3 KiB
/*
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Arduino Stream from a generic generic byte range
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Implementation of the Print is taken by reference and will be proxied
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Copyright (C) 2020 by Maxim Prokhorov <prokhorov dot max at outlook dot com>
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*/
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#include <Arduino.h>
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#include <core_version.h>
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#include <memory>
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#pragma once
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template <typename T>
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struct StreamAdapter final : public Stream {
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StreamAdapter(Print& writer, T&& begin, T&& end) :
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_writer(writer),
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_current(std::forward<T>(begin)),
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_begin(std::forward<T>(begin)),
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_end(std::forward<T>(end))
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{}
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int available() override {
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return (_end - _current);
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}
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int peek() override {
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if (available() && (_end != (1 + _current))) {
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return *(1 + _current);
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}
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return -1;
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}
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int read() override {
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if (_end != _current) {
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return *(_current++);
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}
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return -1;
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}
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void flush() override {
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// 2.3.0 - Stream::flush()
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// latest - Print::flush()
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#if not defined(ARDUINO_ESP8266_RELEASE_2_3_0)
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_writer.flush();
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#endif
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}
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size_t write(const uint8_t* buffer, size_t size) override {
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return _writer.write(buffer, size);
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}
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size_t write(uint8_t ch) override {
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return _writer.write(ch);
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}
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private:
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Print& _writer;
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T _current;
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T const _begin;
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T const _end;
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};
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