mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-04-26 20:27:58 +00:00
Ashley
3d7ad6fb28
* Disable record_metrics_slice in grafana macro on wasm * Update client/grafana-data-source/src/lib.rs * Revert "Update client/grafana-data-source/src/lib.rs" This reverts commit 888009a8e0b7051bd4bfbbfdb0448bcf2e2aae93.
92 lines
2.6 KiB
Rust
92 lines
2.6 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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//! [Grafana] data source server
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//!
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//! To display node statistics with [Grafana], this module exposes a `run_server` function that
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//! starts up a HTTP server that conforms to the [`grafana-json-data-source`] API. The
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//! `record_metrics` macro can be used to pass metrics to this server.
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//!
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//! [Grafana]: https://grafana.com/
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//! [`grafana-json-data-source`]: https://github.com/simPod/grafana-json-datasource
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#![warn(missing_docs)]
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use lazy_static::lazy_static;
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use parking_lot::RwLock;
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mod types;
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mod server;
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#[cfg(not(target_os = "unknown"))]
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mod networking;
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mod database;
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use database::Database;
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pub use server::run_server;
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use std::num::TryFromIntError;
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lazy_static! {
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// The `RwLock` wrapping the metrics database.
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static ref DATABASE: RwLock<Database> = RwLock::new(Database::new());
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}
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/// Write metrics to `METRICS`.
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#[macro_export]
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macro_rules! record_metrics(
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($($key:expr => $value:expr,)*) => {
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if cfg!(not(target_os = "unknown")) {
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$crate::record_metrics_slice(&[
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$( ($key, $value as f32), )*
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])
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} else {
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Ok(())
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}
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}
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);
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/// Write metrics to `METRICS` as a slice. Intended to be only used via `record_metrics!`.
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pub fn record_metrics_slice(metrics: &[(&str, f32)]) -> Result<(), Error> {
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let mut database = crate::DATABASE.write();
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for &(key, value) in metrics.iter() {
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database.push(key, value)?;
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}
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Ok(())
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}
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/// Error type that can be returned by either `record_metrics` or `run_server`.
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#[derive(Debug, derive_more::Display, derive_more::From)]
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pub enum Error {
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Hyper(hyper::Error),
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Serde(serde_json::Error),
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Http(hyper::http::Error),
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Timestamp(TryFromIntError),
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Io(std::io::Error)
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}
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impl std::error::Error for Error {
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fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
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match self {
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Error::Hyper(error) => Some(error),
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Error::Serde(error) => Some(error),
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Error::Http(error) => Some(error),
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Error::Timestamp(error) => Some(error),
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Error::Io(error) => Some(error)
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}
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}
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}
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