pub struct PerfFileReader<R: Read> {
pub perf_file: PerfFile,
pub record_iter: PerfRecordIter<R>,
}
Expand description
A parser for the perf.data file format.
§Example
use linux_perf_data::{AttributeDescription, PerfFileReader, PerfFileRecord};
let file = std::fs::File::open("perf.data")?;
let reader = std::io::BufReader::new(file);
let PerfFileReader { mut perf_file, mut record_iter } = PerfFileReader::parse_file(reader)?;
let event_names: Vec<_> =
perf_file.event_attributes().iter().filter_map(AttributeDescription::name).collect();
println!("perf events: {}", event_names.join(", "));
while let Some(record) = record_iter.next_record(&mut perf_file)? {
match record {
PerfFileRecord::EventRecord { attr_index, record } => {
let record_type = record.record_type;
let parsed_record = record.parse()?;
println!("{:?} for event {}: {:?}", record_type, attr_index, parsed_record);
}
PerfFileRecord::UserRecord(record) => {
let record_type = record.record_type;
let parsed_record = record.parse()?;
println!("{:?}: {:?}", record_type, parsed_record);
}
}
}
Fields§
§perf_file: PerfFile
§record_iter: PerfRecordIter<R>
Implementations§
Source§impl<C: Read + Seek> PerfFileReader<C>
impl<C: Read + Seek> PerfFileReader<C>
pub fn parse_file(cursor: C) -> Result<Self, Error>
Auto Trait Implementations§
impl<R> Freeze for PerfFileReader<R>where
R: Freeze,
impl<R> RefUnwindSafe for PerfFileReader<R>where
R: RefUnwindSafe,
impl<R> Send for PerfFileReader<R>where
R: Send,
impl<R> Sync for PerfFileReader<R>where
R: Sync,
impl<R> Unpin for PerfFileReader<R>where
R: Unpin,
impl<R> UnwindSafe for PerfFileReader<R>where
R: UnwindSafe,
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more