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use std::time::Duration;
use std::time::{SystemTime, UNIX_EPOCH};
pub const NUM_TICKS_PER_SECOND: u64 = 10;
pub const DEFAULT_TICKS_PER_SLOT: u64 = 8;
pub const DEFAULT_SLOTS_PER_EPOCH: u64 = 4096;
pub const NUM_CONSECUTIVE_LEADER_SLOTS: u64 = 8;
pub const MAX_HASH_AGE_IN_SECONDS: usize = 120;
pub const MAX_RECENT_BLOCKHASHES: usize = MAX_HASH_AGE_IN_SECONDS;
pub fn duration_as_us(d: &Duration) -> u64 {
(d.as_secs() * 1000 * 1000) + (u64::from(d.subsec_nanos()) / 1_000)
}
pub fn duration_as_ms(d: &Duration) -> u64 {
(d.as_secs() * 1000) + (u64::from(d.subsec_nanos()) / 1_000_000)
}
pub fn duration_as_s(d: &Duration) -> f32 {
d.as_secs() as f32 + (d.subsec_nanos() as f32 / 1_000_000_000.0)
}
pub fn timestamp() -> u64 {
let now = SystemTime::now()
.duration_since(UNIX_EPOCH)
.expect("create timestamp in timing");
duration_as_ms(&now)
}