mirror of
https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-11-30 03:26:13 +01:00
79 lines
2.0 KiB
C++
79 lines
2.0 KiB
C++
/*
|
|
|
|
(c) 2015 Ingo FIscher
|
|
buffer serial device
|
|
based on Arduino SoftwareSerial
|
|
|
|
This library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
This library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with this library; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
|
|
*/
|
|
|
|
#ifndef MemStream_h
|
|
#define MemStream_h
|
|
|
|
#include <inttypes.h>
|
|
#if defined(ARDUINO_ARCH_MEGAAVR)
|
|
#include <Arduino.h>
|
|
#else
|
|
#include <Stream.h>
|
|
#endif
|
|
|
|
#include <avr/pgmspace.h>
|
|
|
|
class MemStream : public Stream
|
|
{
|
|
private:
|
|
uint8_t *_buffer;
|
|
const uint16_t _len;
|
|
bool _buffer_overflow;
|
|
uint16_t _pos_read;
|
|
uint16_t _pos_write;
|
|
bool _allowWrite;
|
|
|
|
public:
|
|
// public methods
|
|
MemStream(uint8_t *buffer, const uint16_t len, uint16_t content_len = 0, bool allowWrite = true);
|
|
~MemStream() {}
|
|
|
|
operator const uint8_t *() const { return _buffer; }
|
|
operator const char *() const { return (const char *)_buffer; }
|
|
|
|
uint16_t current_length() const { return _pos_write; }
|
|
|
|
bool listen() { return true; }
|
|
void end() {}
|
|
bool isListening() { return true; }
|
|
bool overflow()
|
|
{
|
|
bool ret = _buffer_overflow;
|
|
_buffer_overflow = false;
|
|
return ret;
|
|
}
|
|
int peek();
|
|
|
|
virtual size_t write(uint8_t byte);
|
|
virtual int read();
|
|
virtual int available();
|
|
virtual void flush();
|
|
|
|
void setBufferContent(uint8_t *buffer, uint16_t content_len);
|
|
void setBufferContentFromProgmem(uint8_t *buffer, uint16_t content_len);
|
|
void setBufferContentPosition(uint16_t read_pos, uint16_t write_pos);
|
|
|
|
using Print::write;
|
|
};
|
|
|
|
#endif
|