mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-16 13:21:50 -05:00
46 lines
2.1 KiB
C
46 lines
2.1 KiB
C
|
///////////////////////////////////////////////////////////////////////////////////
|
||
|
|
// Copyright (C) 2017 F4EXB //
|
||
|
|
// written by Edouard Griffiths //
|
||
|
|
// //
|
||
|
|
// Object unique id calculator loosely inspired by MongoDB object id //
|
||
|
|
// //
|
||
|
|
// This program is free software; you can redistribute it and/or modify //
|
||
|
|
// it under the terms of the GNU General Public License as published by //
|
||
|
|
// the Free Software Foundation as version 3 of the License, or //
|
||
|
|
// //
|
||
|
|
// This program 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 General Public License V3 for more details. //
|
||
|
|
// //
|
||
|
|
// You should have received a copy of the GNU General Public License //
|
||
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
||
|
|
///////////////////////////////////////////////////////////////////////////////////
|
||
|
|
#ifndef SDRBASE_UTIL_UID_H_
|
||
|
|
#define SDRBASE_UTIL_UID_H_
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
|
||
|
|
class UidCalculator
|
||
|
|
{
|
||
|
|
public:
|
||
|
|
/**
|
||
|
|
* Get a new object unique Id. It is the addition of:
|
||
|
|
* - 6 digit microseconds in current second
|
||
|
|
* - 4 byte Unix epoch multiplied by 1000000
|
||
|
|
*/
|
||
|
|
static uint64_t getNewObjectId();
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get a new instance unique Id. It is made of from LSB to MSB:
|
||
|
|
* - 2 byte process id
|
||
|
|
* - 2 byte hashed host name
|
||
|
|
*/
|
||
|
|
static uint32_t getNewInstanceId();
|
||
|
|
|
||
|
|
private:
|
||
|
|
static uint64_t getCurrentMiroseconds();
|
||
|
|
};
|
||
|
|
|
||
|
|
#endif /* SDRBASE_UTIL_UID_H_ */
|