/usr/include/directfb/direct/uuid.h is in libdirectfb-dev 1.7.7-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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(c) Copyright 2012-2013 DirectFB integrated media GmbH
(c) Copyright 2001-2013 The world wide DirectFB Open Source Community (directfb.org)
(c) Copyright 2000-2004 Convergence (integrated media) GmbH
All rights reserved.
Written by Denis Oliver Kropp <dok@directfb.org>,
Andreas Shimokawa <andi@directfb.org>,
Marek Pikarski <mass@directfb.org>,
Sven Neumann <neo@directfb.org>,
Ville Syrjälä <syrjala@sci.fi> and
Claudio Ciccani <klan@users.sf.net>.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the
Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA.
*/
#ifndef __DIRECT__UUID_H__
#define __DIRECT__UUID_H__
#include <direct/types.h>
/*
* Direct UUID
*/
typedef union {
struct {
u32 ___u32_x1[1];
u16 ___u16_x2[2];
u8 ____u8_x8[8];
};
// struct {
u64 ___u64_x2[2];
// };
// struct {
u32 ___u32_x4[4];
// };
// struct {
u16 ___u16_x8[8];
// };
// struct {
u8 __u8_x16[16];
// };
} DirectUUID;
/**********************************************************************************************************************/
/*
* We're using 64bit hash keys...
*
*
* u64 value = 2166136261UL;
*
* for (i=0; i<4; i++) {
* value ^= (uuid)->___u32_x4[i];
* value *= 16777619ULL;
* }
*
*/
#define D_UUID_HASH( uuid ) ((u64 )( ((( ((( ((( (((2166136261ULL \
^ (uuid)->___u32_x4[0])) * 16777619ULL) \
^ (uuid)->___u32_x4[1])) * 16777619ULL) \
^ (uuid)->___u32_x4[2])) * 16777619ULL) \
^ (uuid)->___u32_x4[3])) * 16777619ULL) ))
/**********************************************************************************************************************/
#define D_UUID_EQUAL( u1, u2 ) \
( (u1) == (u2) || \
(((u1)->___u64_x2[0] == (u2)->___u64_x2[0]) && ((u1)->___u64_x2[1] == (u2)->___u64_x2[1])) )
#define D_UUID_EMPTY( uuid ) \
( (uuid)->___u64_x2[0] == 0 && (uuid)->___u64_x2[1] == 0 )
#define D_UUID_VALS( uuid ) \
(uuid)->___u32_x1[0], (uuid)->___u16_x2[0], (uuid)->___u16_x2[1], \
(uuid)->____u8_x8[0], (uuid)->____u8_x8[1], (uuid)->____u8_x8[2], (uuid)->____u8_x8[3], \
(uuid)->____u8_x8[4], (uuid)->____u8_x8[5], (uuid)->____u8_x8[6], (uuid)->____u8_x8[7]
#define D_UUID_FORMAT "%08x-%04x-%04x-%02x-%02x-%02x-%02x-%02x-%02x-%02x-%02x"
#define D_UUID_LOG( Domain, LEVEL, u, msg ) \
D_LOG( Domain, LEVEL, "%s == "D_UUID_FORMAT" ==\n", \
msg, D_UUID_VALS( u ) );
#define D_UUID_DEBUG_AT( Domain, u, msg ) \
D_UUID_LOG( Domain, DEBUG, u, msg )
/**********************************************************************************************************************/
#define D_UUID_NULL \
(DirectUUID){{ { 0 }, { 0, 0 }, \
{ 0, 0, 0, 0, 0, 0, 0, 0 } }}
/**********************************************************************************************************************/
/**********************************************************************************************************************/
void DIRECT_API direct_uuid_generate( DirectUUID *ret_id );
#endif
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