mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-29 16:07:57 +00:00
Ashley
145efab68f
* Very WIP * record_metrics macro works * Integrate into service * Licenses and documentation * Remove unused Debugs, make respond function clearer * Conform to line widths, fix service test * Switch to storing the timestamps as millis instead * Update core/grafana-data-source/src/lib.rs Co-Authored-By: Kian Paimani <5588131+kianenigma@users.noreply.github.com> * Transform timestamps to i64 in serialization * Fix license date * Binary sort to find selection range for metrics * Obey maxDataPoints * Run a cleaning future * Newlines at EOF * Update core/service/Cargo.toml Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com> * Update core/grafana-data-source/src/lib.rs Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com> * Fix indentation * Improve select_points * Made test more accurate * Inprogress * Use the same futures version as hyper for now * Error handling * Remove dependence on hyper's tokio feature * Added target_os flag * Update Cargo.toml Co-Authored-By: Pierre Krieger <pierre.krieger1708@gmail.com> * Simplify example * Remove compat wildcard * Updated lock file * Fix indentation 😉
53 lines
1.8 KiB
Rust
53 lines
1.8 KiB
Rust
// Copyright 2019 Parity Technologies (UK) Ltd.
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// This file is part of Substrate.
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// Substrate is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// Substrate is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with Substrate. If not, see <http://www.gnu.org/licenses/>.
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/// Get the current unix timestamp in milliseconds.
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pub fn now_millis() -> i64 {
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chrono::Utc::now().timestamp_millis()
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}
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// find the index of a timestamp
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pub fn find_index(slice: &[(f32, i64)], timestamp: i64) -> usize {
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slice.binary_search_by_key(×tamp, |&(_, timestamp)| timestamp)
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.unwrap_or_else(|index| index)
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}
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// Evenly select up to `num_points` points from a slice
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pub fn select_points<T: Copy>(slice: &[T], num_points: usize) -> Vec<T> {
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if num_points == 0 {
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return Vec::new();
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} else if num_points >= slice.len() {
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return slice.to_owned();
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}
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(0 .. num_points - 1)
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.map(|i| slice[i * slice.len() / (num_points - 1)])
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.chain(slice.last().cloned())
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.collect()
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}
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#[test]
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fn test_select_points() {
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let array = [1, 2, 3, 4, 5];
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assert_eq!(select_points(&array, 0), Vec::<u8>::new());
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assert_eq!(select_points(&array, 1), vec![5]);
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assert_eq!(select_points(&array, 2), vec![1, 5]);
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assert_eq!(select_points(&array, 3), vec![1, 3, 5]);
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assert_eq!(select_points(&array, 4), vec![1, 2, 4, 5]);
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assert_eq!(select_points(&array, 5), vec![1, 2, 3, 4, 5]);
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assert_eq!(select_points(&array, 6), vec![1, 2, 3, 4, 5]);
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}
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