arduino-esp32-custom-lwip-p.../cores/esp32/StreamString.cpp

68 lines
1.7 KiB
C++
Raw Normal View History

2023-02-25 16:13:53 +01:00
/**
StreamString.cpp
Copyright (c) 2015 Markus Sattler. All rights reserved.
This file is part of the esp8266 core for Arduino environment.
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
*/
#include <Arduino.h>
#include "StreamString.h"
size_t StreamString::write(const uint8_t *data, size_t size) {
if(size && data) {
const unsigned int newlen = length() + size;
if(reserve(newlen + 1)) {
memcpy((void *) (wbuffer() + len()), (const void *) data, size);
setLen(newlen);
*(wbuffer() + newlen) = 0x00; // add null for string end
return size;
}
}
return 0;
}
size_t StreamString::write(uint8_t data) {
return concat((char) data);
}
int StreamString::available() {
return length();
}
int StreamString::read() {
if(length()) {
char c = charAt(0);
remove(0, 1);
return c;
}
return -1;
}
int StreamString::peek() {
if(length()) {
char c = charAt(0);
return c;
}
return -1;
}
void StreamString::flush() {
}