54 lines
1,004 B
C++
54 lines
1,004 B
C++
// Copyright (c) 2011-2016 The Cryptonote developers
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// Distributed under the MIT/X11 software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#pragma once
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#include <algorithm>
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#include <cstdint>
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#include <cstring> // memcpy
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#include <vector>
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#include <Common/IOutputStream.h>
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namespace CryptoNote {
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class MemoryStream: public Common::IOutputStream {
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public:
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MemoryStream() : m_writePos(0) {
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}
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virtual size_t writeSome(const void* data, size_t size) override {
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if (size == 0) {
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return 0;
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}
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if (m_writePos + size > m_buffer.size()) {
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m_buffer.resize(m_writePos + size);
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}
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memcpy(&m_buffer[m_writePos], data, size);
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m_writePos += size;
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return size;
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}
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size_t size() {
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return m_buffer.size();
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}
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const uint8_t* data() {
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return m_buffer.data();
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}
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void clear() {
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m_writePos = 0;
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m_buffer.resize(0);
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}
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private:
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size_t m_writePos;
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std::vector<uint8_t> m_buffer;
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};
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}
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