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# linux-perf-event-reader
This crate lets you parse Linux perf events and associated structures.
## Example
```rust
use linux_perf_event_reader::{Endianness, PerfEventAttr, RawData, RecordType};
use linux_perf_event_reader::records::{CommOrExecRecord, EventRecord, RawEventRecord, RecordParseInfo};
// Read the perf_event_attr data.
let attr_data = [
0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 229, 3, 0, 0, 0, 0, 0, 0, 47, 177, 0,
0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 0, 0, 0, 3, 183, 215, 97, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 255, 15,
255, 0, 0, 0, 0, 0, 0, 128, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 104, 0, 0, 0, 0, 0, 0, 0, 128, 0,
0, 0, 0, 0, 0, 0,
];
let (attr, _size) =
PerfEventAttr::parse::<_, byteorder::LittleEndian>(&attr_data[..]).unwrap();
let parse_info = RecordParseInfo::new(&attr, Endianness::LittleEndian);
let body = b"lG\x08\0lG\x08\0dump_syms\0\0\0\0\0\0\0lG\x08\0lG\x08\08\x1b\xf8\x18hX\x04\0";
let body_raw_data = RawData::from(&body[..]);
let raw_record = RawEventRecord::new(RecordType::COMM, 0x2000, body_raw_data, parse_info);
let parsed_record = raw_record.parse().unwrap();
assert_eq!(
parsed_record,
EventRecord::Comm(CommOrExecRecord {
pid: 542572,
tid: 542572,
name: RawData::Single(b"dump_syms"),
is_execve: true
})
);
```
## Acknowledgements
Some of the code in this repo was based on [**@koute**'s `not-perf` project](https://github.com/koute/not-perf/tree/20e4ddc2bf8895d96664ab839a64c36f416023c8/perf_event_open/src).
## License
Licensed under either of
* Apache License, Version 2.0 ([`LICENSE-APACHE`](./LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
* MIT license ([`LICENSE-MIT`](./LICENSE-MIT) or http://opensource.org/licenses/MIT)
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.
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