45 lines
1.3 KiB
Rust
45 lines
1.3 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// exec-env:RUST_LOG=info
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#![allow(unknown_features)]
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#![feature(box_syntax)]
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#[macro_use]
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extern crate log;
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use log::{set_logger, Logger, LogRecord};
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use std::sync::mpsc::channel;
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use std::fmt;
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use std::old_io::{ChanReader, ChanWriter};
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use std::thread::Thread;
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struct MyWriter(ChanWriter);
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impl Logger for MyWriter {
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fn log(&mut self, record: &LogRecord) {
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let MyWriter(ref mut inner) = *self;
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write!(inner, "{}", record.args);
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}
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}
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fn main() {
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let (tx, rx) = channel();
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let (mut r, w) = (ChanReader::new(rx), ChanWriter::new(tx));
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let _t = Thread::spawn(move|| {
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set_logger(box MyWriter(w) as Box<Logger+Send>);
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debug!("debug");
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info!("info");
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});
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let s = r.read_to_string().unwrap();
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assert!(s.contains("info"));
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assert!(!s.contains("debug"));
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}
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