Struct snowflake::SnowflakeIdGenerator

pub struct SnowflakeIdGenerator {
    pub machine_id: i32,
    pub node_id: i32,
    /* private fields */
}

The SnowflakeIdGenerator type is snowflake algorithm wrapper.

Fields

machine_id: i32

machine_id, is use to supplement id machine or sectionalization attribute.

node_id: i32

node_id, is use to supplement id machine-node attribute.

Implementations

impl SnowflakeIdGenerator

pub fn new(machine_id: i32, node_id: i32) -> SnowflakeIdGenerator

Constructs a new SnowflakeIdGenerator using the UNIX epoch. Please make sure that machine_id and node_id is small than 32(2^5);

Examples

use snowflake::SnowflakeIdGenerator;

let id_generator = SnowflakeIdGenerator::new(1, 1);

pub fn with_epoch(
    machine_id: i32,
    node_id: i32,
    epoch: SystemTime
) -> SnowflakeIdGenerator

Constructs a new SnowflakeIdGenerator using the specified epoch. Please make sure that machine_id and node_id is small than 32(2^5);

Examples

use std::time::{Duration, UNIX_EPOCH};
use snowflake::SnowflakeIdGenerator;

// 1 January 2015 00:00:00
let discord_epoch = UNIX_EPOCH + Duration::from_millis(1420070400000);
let id_generator = SnowflakeIdGenerator::with_epoch(1, 1, discord_epoch);

pub fn real_time_generate(&mut self) -> i64

The real_time_generate keep id generate time is eq call method time.

Examples

use snowflake::SnowflakeIdGenerator;

let mut id_generator = SnowflakeIdGenerator::new(1, 1);
id_generator.real_time_generate();

pub fn generate(&mut self) -> i64

The basic guarantee time punctuality.

Basic guarantee time punctuality. sometimes one millis can’t use up 4096 ID, the property of the ID isn’t real-time. But setting time after every 4096 calls.

Examples

use snowflake::SnowflakeIdGenerator;

let mut id_generator = SnowflakeIdGenerator::new(1, 1);
id_generator.generate();

pub fn lazy_generate(&mut self) -> i64

The lazy generate.

Lazy generate. Just start time record last_time_millis it consume every millis ID. Maybe faster than standing time.

Examples

use snowflake::SnowflakeIdGenerator;

let mut id_generator = SnowflakeIdGenerator::new(1, 1);
id_generator.lazy_generate();

Trait Implementations

impl Clone for SnowflakeIdGenerator

fn clone(&self) -> SnowflakeIdGenerator

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SnowflakeIdGenerator

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Copy for SnowflakeIdGenerator