mirror of
https://github.com/SerenityOS/serenity
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74 lines
2.4 KiB
C++
74 lines
2.4 KiB
C++
/*
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* Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/AllOf.h>
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#include <AK/Hex.h>
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#include <AK/StringBuilder.h>
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#include <AK/UUID.h>
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namespace AK {
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UUID::UUID(Array<u8, 16> uuid_buffer)
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{
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uuid_buffer.span().copy_to(m_uuid_buffer);
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}
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void UUID::convert_string_view_to_uuid(StringView uuid_string_view)
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{
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VERIFY(uuid_string_view.length() == 36);
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auto first_unit = decode_hex(uuid_string_view.substring_view(0, 8));
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auto second_unit = decode_hex(uuid_string_view.substring_view(9, 4));
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auto third_unit = decode_hex(uuid_string_view.substring_view(14, 4));
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auto fourth_unit = decode_hex(uuid_string_view.substring_view(19, 4));
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auto fifth_unit = decode_hex(uuid_string_view.substring_view(24, 12));
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VERIFY(first_unit.value().size() == 4 && second_unit.value().size() == 2
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&& third_unit.value().size() == 2 && fourth_unit.value().size() == 2
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&& fifth_unit.value().size() == 6);
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m_uuid_buffer.span().overwrite(0, first_unit.value().data(), first_unit.value().size());
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m_uuid_buffer.span().overwrite(4, second_unit.value().data(), second_unit.value().size());
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m_uuid_buffer.span().overwrite(6, third_unit.value().data(), third_unit.value().size());
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m_uuid_buffer.span().overwrite(8, fourth_unit.value().data(), fourth_unit.value().size());
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m_uuid_buffer.span().overwrite(10, fifth_unit.value().data(), fifth_unit.value().size());
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}
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UUID::UUID(StringView uuid_string_view)
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{
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convert_string_view_to_uuid(uuid_string_view);
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}
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String UUID::to_string() const
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{
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StringBuilder builder(36);
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builder.append(encode_hex(m_uuid_buffer.span().trim(4)).view());
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builder.append('-');
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builder.append(encode_hex(m_uuid_buffer.span().slice(4).trim(2)).view());
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builder.append('-');
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builder.append(encode_hex(m_uuid_buffer.span().slice(6).trim(2)).view());
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builder.append('-');
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builder.append(encode_hex(m_uuid_buffer.span().slice(8).trim(2)).view());
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builder.append('-');
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builder.append(encode_hex(m_uuid_buffer.span().slice(10).trim(6)).view());
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return builder.to_string();
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}
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bool UUID::operator==(const UUID& other) const
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{
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for (size_t index = 0; index < 16; index++) {
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if (m_uuid_buffer[index] != other.m_uuid_buffer[index])
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return false;
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}
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return true;
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}
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bool UUID::is_zero() const
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{
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return all_of(m_uuid_buffer, [](const auto octet) { return octet == 0; });
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}
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}
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