sl4f_lib/diagnostics/
facade.rs

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1// Copyright 2020 The Fuchsia Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5use crate::diagnostics::types::SnapshotInspectArgs;
6use anyhow::Error;
7use diagnostics_reader::{ArchiveReader, RetryConfig};
8use fidl_fuchsia_diagnostics::ArchiveAccessorMarker;
9use fuchsia_component::client;
10use serde_json::Value;
11
12// Give components 5 minutes to respond with their Inspect data in case the system is under heavy
13// load. This can happen especially when running unoptimized on emulators.
14const BATCH_RETRIEVAL_TIMEOUT_SECONDS: i64 = 300;
15
16/// Facade providing access to diagnostics interface.
17#[derive(Debug)]
18pub struct DiagnosticsFacade {}
19
20impl DiagnosticsFacade {
21    pub fn new() -> DiagnosticsFacade {
22        DiagnosticsFacade {}
23    }
24
25    pub async fn snapshot_inspect(&self, args: SnapshotInspectArgs) -> Result<Value, Error> {
26        let service_path = format!("/svc/{}", args.service_name);
27        let proxy =
28            client::connect_to_protocol_at_path::<ArchiveAccessorMarker>(&service_path).unwrap();
29        let value = ArchiveReader::inspect()
30            .retry(RetryConfig::never())
31            .with_archive(proxy)
32            .add_selectors(args.selectors.into_iter())
33            .with_batch_retrieval_timeout_seconds(BATCH_RETRIEVAL_TIMEOUT_SECONDS)
34            .snapshot_raw::<serde_json::Value>()
35            .await?;
36        Ok(value)
37    }
38}
sl4f_lib/diagnostics/facade.rs

sl4f_lib/diagnostics/
facade.rs
