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Sdk: remove integer arithmetic (#15962)

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* Fix timing

* Fix secp256k1_instruction

* Fix secp256k1 tests
This commit is contained in:
Tyera Eulberg
2021-03-17 19:33:50 -06:00
committed by GitHub
parent 04c99cf7ea
commit 5b2b824a53
2 changed files with 41 additions and 22 deletions
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19
sdk/src/timing.rs
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@@ -1,17 +1,26 @@
#![allow(clippy::integer_arithmetic)]
//! The `timing` module provides std::time utility functions.
use crate::unchecked_div_by_const;
use std::time::{Duration, SystemTime, UNIX_EPOCH};
pub fn duration_as_ns(d: &Duration) -> u64 {
d.as_secs() * 1_000_000_000 + u64::from(d.subsec_nanos())
d.as_secs()
.saturating_mul(1_000_000_000)
.saturating_add(u64::from(d.subsec_nanos()))
}
pub fn duration_as_us(d: &Duration) -> u64 {
(d.as_secs() * 1000 * 1000) + (u64::from(d.subsec_nanos()) / 1_000)
d.as_secs()
.saturating_mul(1_000_000)
.saturating_add(unchecked_div_by_const!(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)
d.as_secs()
.saturating_mul(1000)
.saturating_add(unchecked_div_by_const!(
u64::from(d.subsec_nanos()),
1_000_000
))
}
pub fn duration_as_s(d: &Duration) -> f32 {
@@ -34,7 +43,7 @@ pub fn years_as_slots(years: f64, tick_duration: &Duration, ticks_per_slot: u64)
// slots/year is seconds/year ...
SECONDS_PER_YEAR
// * (ns/s)/(ns/tick) / ticks/slot = 1/s/1/tick = ticks/s
*(1_000_000_000.0 / duration_as_ns(tick_duration) as f64)
* (1_000_000_000.0 / duration_as_ns(tick_duration) as f64)
// / ticks/slot
/ ticks_per_slot as f64
}