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include
Argus
UUID.h
Go to the documentation of this file.
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/*
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* Copyright (c) 2016-2021, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* <b>Libargus API: UUID API</b>
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*
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* @b Description: Defines the UUID types used by libargus.
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*/
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#ifndef _ARGUS_UUID_H
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#define _ARGUS_UUID_H
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#include <stdint.h>
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#include <cstring>
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namespace
Argus
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{
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const
uint32_t
MAX_UUID_NAME_SIZE
= 32;
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/**
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* A universally unique identifier.
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*/
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struct
UUID
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{
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uint32_t
time_low
;
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uint16_t
time_mid
;
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uint16_t
time_hi_and_version
;
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uint16_t
clock_seq
;
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uint8_t
node
[6];
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bool
operator==
(
const
UUID
&r)
const
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{
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return
memcmp(
this
, &r,
sizeof
(
UUID
)) == 0;
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}
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bool
operator<
(
const
UUID
&r)
const
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{
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return
memcmp(
this
, &r,
sizeof
(
UUID
)) < 0;
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}
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};
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/**
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* A universally unique identifier with a name (used for debugging purposes).
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*/
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class
NamedUUID
:
public
UUID
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{
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public
:
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NamedUUID
(uint32_t time_low_
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, uint16_t time_mid_
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, uint16_t time_hi_and_version_
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, uint16_t clock_seq_
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, uint8_t c0, uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4, uint8_t c5
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,
const
char
* name)
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{
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time_low
= time_low_;
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time_mid
= time_mid_;
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time_hi_and_version
= time_hi_and_version_;
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clock_seq
= clock_seq_;
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node
[0] = c0;
node
[1] = c1;
node
[2] = c2;
node
[3] = c3;
node
[4] = c4;
node
[5] = c5;
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strncpy(
m_name
, name,
sizeof
(
m_name
)-1);
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m_name
[
sizeof
(
m_name
)-1] =
'\0'
;
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}
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NamedUUID
(
const
NamedUUID
& copied)
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:
UUID
(copied)
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{
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memcpy(
m_name
, copied.
m_name
, (strnlen(copied.
m_name
, (
sizeof
(
m_name
) - 1)) + 1));
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m_name
[
sizeof
(
m_name
)-1] =
'\0'
;
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}
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NamedUUID
&
operator=
(
const
NamedUUID
& copied)
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{
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static_cast<
UUID
&
>
(*this) = copied;
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return
*
this
;
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}
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bool
operator==
(
const
NamedUUID
& compared)
const
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{
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return
static_cast<
const
UUID
&
>
(*this) == compared;
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}
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bool
operator!=
(
const
NamedUUID
& compared)
const
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{
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return
!(
static_cast<
const
UUID
&
>
(*this) == compared);
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}
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const
char
*
getName
()
const
{
return
m_name
; }
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private
:
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char
m_name
[
MAX_UUID_NAME_SIZE
];
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NamedUUID
();
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};
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/// Helper macro used to define NamedUUID-derived values.
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#define DEFINE_UUID(TYPE, NAME, l, s0, s1, s2, c0,c1,c2,c3,c4,c5) \
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static const TYPE NAME(0x##l, 0x##s0, 0x##s1, 0x##s2, \
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0x##c0, 0x##c1, 0x##c2, 0x##c3, 0x##c4, 0x##c5, #NAME);
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#define DEFINE_NAMED_UUID_CLASS(NAME) \
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class NAME : public NamedUUID \
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{ \
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public: \
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NAME(uint32_t time_low_ \
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, uint16_t time_mid_ \
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, uint16_t time_hi_and_version_ \
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, uint16_t clock_seq_ \
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, uint8_t c0, uint8_t c1, uint8_t c2, uint8_t c3, uint8_t c4, uint8_t c5 \
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, const char* name) \
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: NamedUUID(time_low_, time_mid_, time_hi_and_version_, clock_seq_, \
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c0, c1, c2, c3, c4, c5, name) \
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{} \
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private: \
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NAME();\
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};
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}
// namespace Argus
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#endif // _ARGUS_UUID_H
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