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Use an atomic bool for EXPERIMENTAL_ENABLED.

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static mut smells, especially as it can be set and read from multiple threads
(for example in unit tests).
This commit is contained in:
Ms2ger 2015-06-27 09:06:45 +02:00
parent b73eca160c
commit 0d0c8f2d42
1 changed files with 4 additions and 7 deletions
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11
components/util/opts.rs
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@ -21,6 +21,7 @@ use std::mem;
use std::path::Path; use std::path::Path;
use std::process; use std::process;
use std::ptr; use std::ptr;
use std::sync::atomic::{AtomicBool, Ordering, ATOMIC_BOOL_INIT};
use url::{self, Url}; use url::{self, Url};
/// Global flags for Servo, currently set on the command line. /// Global flags for Servo, currently set on the command line.
@ -422,21 +423,17 @@ pub fn from_cmdline_args(args: &[String]) {
set(opts); set(opts);
} }
static mut EXPERIMENTAL_ENABLED: bool = false; static EXPERIMENTAL_ENABLED: AtomicBool = ATOMIC_BOOL_INIT;
/// Turn on experimental features globally. Normally this is done /// Turn on experimental features globally. Normally this is done
/// during initialization by `set` or `from_cmdline_args`, but /// during initialization by `set` or `from_cmdline_args`, but
/// tests that require experimental features will also set it. /// tests that require experimental features will also set it.
pub fn set_experimental_enabled(new_value: bool) { pub fn set_experimental_enabled(new_value: bool) {
unsafe { EXPERIMENTAL_ENABLED.store(new_value, Ordering::SeqCst);
EXPERIMENTAL_ENABLED = new_value;
}
} }
pub fn experimental_enabled() -> bool { pub fn experimental_enabled() -> bool {
unsafe { EXPERIMENTAL_ENABLED.load(Ordering::SeqCst)
EXPERIMENTAL_ENABLED
}
} }
// Make Opts available globally. This saves having to clone and pass // Make Opts available globally. This saves having to clone and pass