Jędrzej Stuczyński
e5afd54ce0
* Basic storage stub * New models for new node status api * Route handling * Mounting new routes * Missing selective commit * Moved network monitor related files to separate package * Starting to see some sqlx action * Schema updates * Log statement upon finished migration * Removed old diesel related imports * Converted mixnode cache initialisation into a fairing * Moved cache related functionalities to separate package Also defined staging there * Created run method for validator cache + removed unwrap * Removed old node-status-api types and left bunch of todo placeholders in their place * Fixed managing validatorcache * Status reports are starting to get constructed * Submitting some dummy results to the database * Removing duplicate code for generating reports * Removed statuses older than 48h * Initial attempt at trying to obtain reports for all active nodes * Removed duplicates from the full report * Grabbing uptime history * Updating historical uptimes of active nodes * Updated sqlx-data.json * Removed all placeholder foomp owner values * Changed Layer serde behaviour for easier usage * Extended validator api config * Initial (seems working !) integration with network monitor * Added database path configuration to config * Using ValidatorCache in NetworkMonitor * Flag indicating whether validator cache has been initialised * Introduced a locla-only route for reward script to perform daily chores * Flag to save config to a file * Moved spawning of receiving future to run method rather than new * Removed arguments that dont make sense to be configured via CLI * Removed dead code from config file * More dead code removal * Added validator API to CI * Corrected manifest-path arguments * Constructing network monitor by passing config * Combined validator API CI with the main CI file * Using query_as for NodeStatus * Checking if historical uptimes were already calculated on particular day * Making id field NOT NULL * More query_as! action * Updated sqlx-data.json * Removed unused chrono feature * Renamed the migration file * Changed default validator endpoint to point to local validator * Removing unnecessary clone * More appropriate naming * Removed dead code * Lock file updates * Updated network monitor address in contract code * Don't stage node status api if network monitor is disabled * cargo fmt * Updated all license notices to SPDX
23 lines
888 B
Rust
23 lines
888 B
Rust
// Copyright 2021 - Nym Technologies SA <contact@nymtech.net>
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// SPDX-License-Identifier: Apache-2.0
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use rand::Rng;
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use rand_distr::{Distribution, Exp};
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use std::time;
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// TODO: ask @AP why we are actually using Distribution::Exp(1/L) rather than just
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// Distribution::Poisson(L) directly?
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// TODO: should we put an extra trait bound on this to require `CryptoRng`? Could there be any attacks
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// because of weak rng used?
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pub fn sample_poisson_duration<R: Rng + ?Sized>(
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rng: &mut R,
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average_duration: time::Duration,
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) -> time::Duration {
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// this is our internal code used by our traffic streams
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// the error is only thrown if average delay is less than 0, which will never happen
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// so call to unwrap is perfectly safe here
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let exp = Exp::new(1.0 / average_duration.as_nanos() as f64).unwrap();
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time::Duration::from_nanos(exp.sample(rng).round() as u64)
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}
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