Added class Buffer.

src/base/tools/Buffer.h

@@ -0,0 +1,88 @@
+/* XMRig
+ * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
+ * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
+ * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
+ * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
+ * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
+ * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
+ * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
+ * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef XMRIG_BUFFER_H
+#define XMRIG_BUFFER_H
+
+
+#include "base/tools/String.h"
+
+
+namespace xmrig {
+
+
+class Buffer
+{
+public:
+    Buffer();
+    Buffer(Buffer &&other);
+    Buffer(const Buffer &other);
+    Buffer(const char *data, size_t size);
+    Buffer(size_t size);
+    ~Buffer();
+
+
+    inline char *data()                   { return m_data; }
+    inline const char *data() const       { return m_data; }
+    inline size_t size() const            { return m_size; }
+    inline void from(const Buffer &other) { from(other.data(), other.size()); }
+
+
+    void from(const char *data, size_t size);
+
+
+    inline Buffer &operator=(const Buffer &other) { from(other); return *this; }
+    inline Buffer &operator=(Buffer &&other)      { move(std::move(other)); return *this; }
+
+
+    static Buffer allocUnsafe(size_t size);
+    static inline Buffer alloc(size_t size) { return Buffer(size); }
+
+
+    inline static bool fromHex(const char *in, size_t size, char *out)    { return fromHex(reinterpret_cast<const uint8_t *>(in), size, reinterpret_cast<uint8_t *>(out)); }
+    inline static bool fromHex(const char *in, size_t size, uint8_t *out) { return fromHex(reinterpret_cast<const uint8_t *>(in), size, out); }
+    inline static Buffer fromHex(const char *data)                        { return fromHex(data, strlen(data)); }
+    inline static Buffer fromHex(const String &str)                       { return fromHex(str.data(), str.size()); }
+    inline static void toHex(const char *in, size_t size, char *out)      { return toHex(reinterpret_cast<const uint8_t *>(in), size, reinterpret_cast<uint8_t *>(out)); }
+    inline static void toHex(const uint8_t *in, size_t size, char *out)   { return toHex(in, size, reinterpret_cast<uint8_t *>(out)); }
+
+    static bool fromHex(const uint8_t *in, size_t size, uint8_t *out);
+    static Buffer fromHex(const char *data, size_t size);
+    static String toHex(const uint8_t *in, size_t size);
+    static void toHex(const uint8_t *in, size_t size, uint8_t *out);
+    String toHex() const;
+
+private:
+    void copy(const char *data, size_t size);
+    void move(Buffer &&other);
+
+    char *m_data;
+    size_t m_size;
+};
+
+
+} /* namespace xmrig */
+
+
+#endif /* XMRIG_BUFFER_H */