schildichat-android/rust-sdk/src/logger.rs
2021-02-17 16:21:58 +01:00

54 lines
1.1 KiB
Rust

use std::{
io::{Result, Write},
sync::{Arc, Mutex},
};
use tracing_subscriber::{fmt::MakeWriter, EnvFilter};
pub trait Logger: Send {
fn log(&self, log_line: String);
}
impl Write for LoggerWrapper {
fn write(&mut self, buf: &[u8]) -> Result<usize> {
let data = String::from_utf8_lossy(buf).to_string();
self.inner.lock().unwrap().log(data);
Ok(buf.len())
}
fn flush(&mut self) -> Result<()> {
Ok(())
}
}
impl MakeWriter for LoggerWrapper {
type Writer = LoggerWrapper;
fn make_writer(&self) -> Self::Writer {
self.clone()
}
}
#[derive(Clone)]
pub struct LoggerWrapper {
inner: Arc<Mutex<Box<dyn Logger>>>,
}
pub fn set_logger(logger: Box<dyn Logger>) {
let logger = LoggerWrapper {
inner: Arc::new(Mutex::new(logger)),
};
let filter = EnvFilter::from_default_env().add_directive(
"matrix_sdk_crypto=trace"
.parse()
.expect("Can't parse logging filter directive"),
);
let _ = tracing_subscriber::fmt()
.with_writer(logger)
.with_env_filter(filter)
.without_time()
.try_init();
}