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rocm-systems/rust-interface/examples/amdsmi_exporter/http_server.rs
T
Huang, Tim d32f2a109a Add rust bindings for amdsmi c interface (#14)
It consists of two main steps:

1. Generating Bindings with `bindgen`:
- The `build.rs` script uses `bindgen` to generate Rust FFI (Foreign
Function Interface) bindings for the AMD SMI C library. This step
automatically exports all enums, structs, unions, and unsafe functions
from the C library into Rust. This provides a comprehensive low-level
interface to the AMD SMI library.

2. Implementing Safe Rust Wrappers:
- The generated bindings are then wrapped in safe Rust functions. These
safe wrappers handle error checking, resource management, and provide a
more idiomatic Rust interface. This ensures that users of the library
can interact with the AMD SMI functions without dealing with unsafe code
directly.

Change-Id: I7d5e49e59826164fc911ced04ef7ca5706b7cc05

Signed-off-by: Tim Huang <tim.huang@amd.com>
2025-01-07 17:19:46 -06:00

64 linhas
2.4 KiB
Rust

// Copyright (C) 2024 Advanced Micro Devices. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
use crate::amdsmi_collectors::AmdsmiCollectors;
use axum::response::{IntoResponse, Response};
use axum::{routing::get, Router};
use hyper::Server;
use prometheus_client::encoding::text::encode;
use prometheus_client::registry::Registry;
use std::net::SocketAddr;
use std::sync::Arc;
use tokio::sync::Mutex;
async fn serve_req(registry: Arc<Mutex<Registry>>) -> impl IntoResponse {
let mut buffer = String::new();
let registry = registry.lock().await;
encode(&mut buffer, &*registry).unwrap();
Response::builder()
.header("Content-Type", "text/plain; version=0.0.4")
.body(buffer)
.unwrap()
}
pub async fn run_http_server(collectors: &Arc<Mutex<AmdsmiCollectors>>, addr: SocketAddr) {
let app = Router::new().route(
"/metrics",
get({
let collectors = Arc::clone(&collectors);
move || {
let collectors = Arc::clone(&collectors);
async move {
let mut collectors = collectors.lock().await;
let registry = Arc::new(Mutex::new(collectors.run_collect()));
serve_req(registry).await
}
}
}),
);
println!("Listening on http://{}", addr);
Server::bind(&addr)
.serve(app.into_make_service())
.await
.unwrap();
}