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80 lines
2.6 KiB
C
80 lines
2.6 KiB
C
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// This file is part of Moonfire NVR, a security camera network video recorder.
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// Copyright (C) 2016 Lamb <slamb@slamb.org>
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU 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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// In addition, as a special exception, the copyright holders give
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// permission to link the code of portions of this program with the
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// OpenSSL library under certain conditions as described in each
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// individual source file, and distribute linked combinations including
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// the two.
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//
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// You must obey the GNU General Public License in all respects for all
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// of the code used other than OpenSSL. If you modify file(s) with this
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// exception, you may extend this exception to your version of the
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// file(s), but you are not obligated to do so. If you do not wish to do
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// so, delete this exception statement from your version. If you delete
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// this exception statement from all source files in the program, then
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// also delete it here.
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//
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// This program 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 General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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//
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// uuid.h: small wrapper around the C UUID library for generating/parsing
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// RFC 4122 UUIDs.
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#ifndef MOONFIRE_NVR_UUID_H
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#define MOONFIRE_NVR_UUID_H
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#include <re2/stringpiece.h>
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#include <uuid/uuid.h>
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namespace moonfire_nvr {
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class Uuid {
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public:
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// Create a null uuid.
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Uuid() { uuid_clear(me_); }
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// Parse the text UUID. Returns success.
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bool ParseText(re2::StringPiece input);
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// Parse a binary UUID. In practice any 16-byte string is considered valid.
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bool ParseBinary(re2::StringPiece input);
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// Return a 36-byte lowercase text representation, such as
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// 1b4e28ba-2fa1-11d2-883f-0016d3cca427.
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std::string UnparseText() const;
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// Return a reference to the 16-byte binary form.
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// Invalidated by any change to the Uuid object.
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re2::StringPiece binary_view() const;
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bool operator==(const Uuid &) const;
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bool operator<(const Uuid &) const;
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private:
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friend class RealUuidGenerator;
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uuid_t me_;
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};
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class UuidGenerator {
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public:
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virtual ~UuidGenerator() {}
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virtual Uuid Generate() = 0;
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};
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UuidGenerator *GetRealUuidGenerator();
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} // namespace moonfire_nvr
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#endif // MOONFIRE_NVR_CODING_H
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