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// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
//! Logging
use option::*;
use os;
use rt;
use rt::logging::{Logger, StdErrLogger};
use send_str::SendStrOwned;
/// Turns on logging to stdout globally
pub fn console_on() {
rt::logging::console_on();
}
/**
* Turns off logging to stdout globally
*
* Turns off the console unless the user has overridden the
* runtime environment's logging spec, e.g. by setting
* the RUST_LOG environment variable
*/
pub fn console_off() {
// If RUST_LOG is set then the console can't be turned off
if os::getenv("RUST_LOG").is_some() {
return;
}
rt::logging::console_off();
}
fn newsched_log_str(msg: ~str) {
use rt::task::Task;
use rt::local::Local;
unsafe {
let optional_task: Option<*mut Task> = Local::try_unsafe_borrow();
match optional_task {
Some(local) => {
// Use the available logger
(*local).logger.log(SendStrOwned(msg));
}
None => {
// There is no logger anywhere, just write to stderr
let mut logger = StdErrLogger;
logger.log(SendStrOwned(msg));
}
}
}
}
// XXX: This will change soon to not require an allocation. This is an unstable
// api which should not be used outside of the macros in ext/expand.
#[doc(hidden)]
pub fn log(_level: u32, msg: ~str) {
newsched_log_str(msg);
}
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