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45 lines
1.5 KiB
45 lines
1.5 KiB
4 months ago
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//
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// Copyright (C) 2021 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//
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//! ProfCollect trace provider trait and helper functions.
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use anyhow::{anyhow, Result};
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use chrono::Utc;
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use std::path::Path;
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use std::sync::{Arc, Mutex};
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use std::time::Duration;
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use crate::simpleperf_etm_trace_provider::SimpleperfEtmTraceProvider;
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pub trait TraceProvider {
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fn get_name(&self) -> &'static str;
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fn trace(&self, trace_dir: &Path, tag: &str, sampling_period: &Duration);
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fn process(&self, trace_dir: &Path, profile_dir: &Path) -> Result<()>;
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}
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pub fn get_trace_provider() -> Result<Arc<Mutex<dyn TraceProvider + Send>>> {
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if SimpleperfEtmTraceProvider::supported() {
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log::info!("simpleperf_etm trace provider registered.");
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return Ok(Arc::new(Mutex::new(SimpleperfEtmTraceProvider {})));
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}
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Err(anyhow!("No trace provider found for this device."))
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}
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pub fn construct_file_name(tag: &str) -> String {
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format!("{}_{}", Utc::now().format("%Y%m%d-%H%M%S"), tag)
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}
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