1 /*
2 * Copyright 2021 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 //! Timeouts for common situations, with support for longer timeouts when using nested
18 //! virtualization.
19
20 use anyhow::Result;
21 use rustutils::system_properties;
22 use std::time::Duration;
23
24 /// Holder for the various timeouts we use.
25 #[derive(Debug, Copy, Clone)]
26 pub struct Timeouts {
27 /// Total time that odrefresh may take to perform compilation
28 pub odrefresh_max_execution_time: Duration,
29 /// Time allowed for the CompOS VM to start up and become ready.
30 pub vm_max_time_to_ready: Duration,
31 }
32
33 /// Whether the current platform requires extra time for operations inside a VM.
need_extra_time() -> Result<bool>34 pub fn need_extra_time() -> Result<bool> {
35 // Nested virtualization is slow. Check if we are running on vsoc as a proxy for this.
36 if let Some(value) = system_properties::read("ro.build.product")? {
37 Ok(value == "vsoc_x86_64" || value == "vsoc_x86")
38 } else {
39 Ok(false)
40 }
41 }
42
43 /// Return the timeouts that are appropriate on the current platform.
timeouts() -> Result<&'static Timeouts>44 pub fn timeouts() -> Result<&'static Timeouts> {
45 if need_extra_time()? {
46 Ok(&EXTENDED_TIMEOUTS)
47 } else {
48 Ok(&NORMAL_TIMEOUTS)
49 }
50 }
51
52 /// The timeouts that we use normally.
53 pub const NORMAL_TIMEOUTS: Timeouts = Timeouts {
54 // Note: the source of truth for these odrefresh timeouts is art/odrefresh/odr_config.h.
55 odrefresh_max_execution_time: Duration::from_secs(300),
56 vm_max_time_to_ready: Duration::from_secs(15),
57 };
58
59 /// The timeouts that we use when need_extra_time() returns true.
60 pub const EXTENDED_TIMEOUTS: Timeouts = Timeouts {
61 odrefresh_max_execution_time: Duration::from_secs(480),
62 vm_max_time_to_ready: Duration::from_secs(120),
63 };
64