Yuhao Zhou
6 years ago
commit
d46c10a0a2
@ -1,72 +0,0 @@
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--- atomic_backup.rs 2018-10-06 19:59:14.000000000 +0800
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+++ atomic.rs 2018-10-26 14:34:31.000000000 +0800
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@@ -125,6 +125,9 @@
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#[cfg(target_has_atomic = "8")]
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#[stable(feature = "rust1", since = "1.0.0")]
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pub struct AtomicBool {
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+ #[cfg(any(target_arch = "riscv32", target_arch = "riscv64"))]
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+ v: UnsafeCell<u32>,
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+ #[cfg(not(any(target_arch = "riscv32", target_arch = "riscv64")))]
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v: UnsafeCell<u8>,
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}
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@@ -265,6 +268,59 @@
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pub const ATOMIC_BOOL_INIT: AtomicBool = AtomicBool::new(false);
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#[cfg(target_has_atomic = "8")]
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+#[cfg(any(target_arch = "riscv32", target_arch = "riscv64"))]
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+impl AtomicBool {
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+ ///
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+ #[inline]
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+ #[stable(feature = "rust1", since = "1.0.0")]
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+ pub const fn new(v: bool) -> AtomicBool {
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+ AtomicBool { v: UnsafeCell::new(v as u32) }
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+ }
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+
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+ ///
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+ #[inline]
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+ #[stable(feature = "rust1", since = "1.0.0")]
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+ pub fn load(&self, order: Ordering) -> bool {
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+ unsafe { atomic_load(self.v.get(), order) != 0 }
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+ }
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+
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+ ///
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+ #[inline]
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+ #[stable(feature = "rust1", since = "1.0.0")]
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+ pub fn store(&self, val: bool, order: Ordering) {
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+ unsafe { atomic_store(self.v.get(), val as u32, order); }
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+ }
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+
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+ ///
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+ #[inline]
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+ #[stable(feature = "rust1", since = "1.0.0")]
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+ pub fn compare_and_swap(&self, current: bool, new: bool, order: Ordering) -> bool {
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+ match self.compare_exchange(current, new, order, strongest_failure_ordering(order)) {
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+ Ok(x) => x,
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+ Err(x) => x,
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+ }
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+ }
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+
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+ ///
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+ #[inline]
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+ #[stable(feature = "extended_compare_and_swap", since = "1.10.0")]
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+ pub fn compare_exchange(&self,
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+ current: bool,
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+ new: bool,
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+ success: Ordering,
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+ failure: Ordering)
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+ -> Result<bool, bool> {
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+ match unsafe {
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+ atomic_compare_exchange(self.v.get(), current as u32, new as u32, success, failure)
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+ } {
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+ Ok(x) => Ok(x != 0),
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+ Err(x) => Err(x != 0),
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+ }
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+ }
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+}
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+
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+#[cfg(target_has_atomic = "8")]
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+#[cfg(not(any(target_arch = "riscv32", target_arch = "riscv64")))]
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impl AtomicBool {
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/// Creates a new `AtomicBool`.
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///
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@ -1,3 +1,3 @@
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pub fn rand() -> u64 {
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return 0;
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}
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}
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@ -1 +1 @@
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Subproject commit 07619a48d4e8051766c294d9d616337869e4c1a0
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Subproject commit fdaa1be8635944d88ff128da13bf0464f7ce2eb6
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