2015-05-27 12:08:46 +00:00
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// Copyright (c) 2012-2015, The CryptoNote developers, The Bytecoin developers
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2014-08-13 10:38:35 +00:00
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Bytecoin is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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2014-06-25 17:21:42 +00:00
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2015-07-30 15:22:07 +00:00
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#include "MemoryInputStream.h"
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2015-04-06 16:13:07 +00:00
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#include <algorithm>
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2015-07-30 15:22:07 +00:00
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#include <cassert>
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#include <cstring> // memcpy
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namespace Common {
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MemoryInputStream::MemoryInputStream(const void* buffer, size_t bufferSize) :
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buffer(static_cast<const char*>(buffer)), bufferSize(bufferSize), position(0) {}
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2014-06-25 17:21:42 +00:00
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2015-07-30 15:22:07 +00:00
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size_t MemoryInputStream::getPosition() const {
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return position;
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}
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2014-06-25 17:21:42 +00:00
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2015-07-30 15:22:07 +00:00
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bool MemoryInputStream::endOfStream() const {
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return position == bufferSize;
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}
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2014-06-25 17:21:42 +00:00
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2015-07-30 15:22:07 +00:00
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size_t MemoryInputStream::readSome(void* data, size_t size) {
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assert(position <= bufferSize);
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size_t readSize = std::min(size, bufferSize - position);
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2014-06-25 17:21:42 +00:00
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2015-07-30 15:22:07 +00:00
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if (readSize > 0) {
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memcpy(data, buffer + position, readSize);
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position += readSize;
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}
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return readSize;
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}
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2014-06-25 17:21:42 +00:00
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}
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