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110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Portions of this file are from JUCE.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Please visit http://www.juce.com
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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namespace
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{
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int64 getRandomSeedFromMACAddresses()
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{
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Array<MACAddress> result;
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MACAddress::findAllAddresses (result);
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Random r;
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for (int i = 0; i < result.size(); ++i)
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r.combineSeed (result[i].toInt64());
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return r.nextInt64();
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}
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}
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//==============================================================================
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Uuid::Uuid()
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{
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// The normal random seeding is pretty good, but we'll throw some MAC addresses
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// into the mix too, to make it very very unlikely that two UUIDs will ever be the same..
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static Random r1 (getRandomSeedFromMACAddresses());
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Random r2;
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for (size_t i = 0; i < sizeof (uuid); ++i)
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uuid[i] = (uint8) (r1.nextInt() ^ r2.nextInt());
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}
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Uuid::~Uuid() noexcept {}
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Uuid::Uuid (const Uuid& other) noexcept
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{
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memcpy (uuid, other.uuid, sizeof (uuid));
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}
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Uuid& Uuid::operator= (const Uuid& other) noexcept
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{
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memcpy (uuid, other.uuid, sizeof (uuid));
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return *this;
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}
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bool Uuid::operator== (const Uuid& other) const noexcept { return memcmp (uuid, other.uuid, sizeof (uuid)) == 0; }
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bool Uuid::operator!= (const Uuid& other) const noexcept { return ! operator== (other); }
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bool Uuid::isNull() const noexcept
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{
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for (size_t i = 0; i < sizeof (uuid); ++i)
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if (uuid[i] != 0)
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return false;
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return true;
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}
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String Uuid::toString() const
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{
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return String::toHexString (uuid, sizeof (uuid), 0);
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}
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Uuid::Uuid (const String& uuidString)
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{
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operator= (uuidString);
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}
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Uuid& Uuid::operator= (const String& uuidString)
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{
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MemoryBlock mb;
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mb.loadFromHexString (uuidString);
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mb.ensureSize (sizeof (uuid), true);
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mb.copyTo (uuid, 0, sizeof (uuid));
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return *this;
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}
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Uuid::Uuid (const uint8* const rawData)
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{
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operator= (rawData);
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}
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Uuid& Uuid::operator= (const uint8* const rawData) noexcept
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{
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if (rawData != nullptr)
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memcpy (uuid, rawData, sizeof (uuid));
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else
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zeromem (uuid, sizeof (uuid));
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return *this;
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}
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