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/*
* Copyright (C) 2008-2012 Geometer Plus <[email protected]>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#include <algorithm>
#include "StringStream.h"
StringStream::StringStream(const std::string &data) : myData(data), myOffset(0) {
}
bool StringStream::open() {
myOffset = 0;
return true;
}
std::size_t StringStream::read(char *buffer, std::size_t maxSize) {
std::size_t size = std::min(maxSize, myData.length() - myOffset);
memcpy(buffer, myData.data() + myOffset, size);
myOffset += size;
return size;
}
void StringStream::close() {
}
void StringStream::seek(int offset, bool absoluteOffset) {
if (!absoluteOffset) {
offset += myOffset;
}
myOffset = std::min((std::size_t)std::max(0, offset), myData.length());
}
std::size_t StringStream::offset() const {
return myOffset;
}
std::size_t StringStream::sizeOfOpened() {
return myData.length();
}
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