Eliza Weisman df9666bdeb

core: fix warnings when compiling without std (#2022) ...

## Motivation

Currently, compiling `tracing-core` with `default-features = false`
(i.e. for `no_std` targets) emits a few warnings. This is due to the
spinlock implementation's use of the deprecated `atomic::spin_loop_hint`
function (renamed to `hint::spin_loop`), and the use of deprecated
`compare_and_swap` instead of `compare_exchange` methods. Now that our
MSRV is 1.49 (the version in which `hint::spin_loop` was stabilized), we
can fix these warnings.

## Solution

This branch replaces the deprecated APIs. 

Also, I noticed that one of the tests emits unused-imports warnings with
`--no-default-features`. This is because the actual tests are feature
flagged to require `std`, but the module itself doesn't, so the imports
are just hanging out and not getting used for anything. I went ahead and
fixed that as well.

Signed-off-by: Eliza Weisman <eliza@buoyant.io>

2022-03-25 00:27:20 +00:00

..

common

core: Add set_default method to set default dispatcher (#388)

2019-10-18 11:56:33 -07:00

dispatch.rs

core: fix warnings when compiling without std (#2022)

2022-03-25 00:27:20 +00:00

global_dispatch.rs

core: Add set_default method to set default dispatcher (#388)

2019-10-18 11:56:33 -07:00

macros.rs

core: support no-std + alloc (#256)

2019-08-09 13:27:35 -07:00