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#![warn(missing_docs)]
#[macro_use]
extern crate slog;
extern crate crossbeam;
use std::io;
use slog::*;
use std::sync::Arc;
use crossbeam::sync::ArcCell;
pub struct AtomicSwitchCtrl(Arc<ArcCell<Box<Drain>>>);
pub struct AtomicSwitch(Arc<ArcCell<Box<Drain>>>);
impl AtomicSwitchCtrl {
pub fn new<D: Drain + 'static>(d: D) -> Self {
let a = Arc::new(ArcCell::new(Arc::new(Box::new(d) as Box<Drain>)));
AtomicSwitchCtrl(a)
}
pub fn new_from_arc(d: Arc<ArcCell<Box<Drain>>>) -> Self {
AtomicSwitchCtrl(d)
}
pub fn drain(&self) -> AtomicSwitch {
AtomicSwitch(self.0.clone())
}
pub fn set<D: Drain>(&self, drain: D) {
let _ = self.0.set(Arc::new(Box::new(drain)));
}
pub fn swap(&self, drain: Arc<Box<Drain>>) -> Arc<Box<Drain>> {
self.0.set(drain)
}
}
impl Drain for AtomicSwitch {
fn log(&self,
info: &Record,
logger_values: &OwnedKeyValueList)
-> io::Result<()> {
self.0.get().log(info, logger_values)
}
}