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pub use bare_metal::{CriticalSection, Mutex, Nr};
#[inline(always)]
pub fn disable() {
match () {
#[cfg(target_arch = "riscv")]
() => ::csr::mstatus.clear(|w| w.mie()),
#[cfg(not(target_arch = "riscv"))]
() => {}
}
}
#[inline(always)]
pub unsafe fn enable() {
match () {
#[cfg(target_arch = "riscv")]
() => ::csr::mstatus.set(|w| w.mie()),
#[cfg(not(target_arch = "riscv"))]
() => {}
}
}
pub fn free<F, R>(f: F) -> R
where
F: FnOnce(&CriticalSection) -> R,
{
let mstatus = ::csr::mstatus.read();
disable();
let r = f(unsafe { &CriticalSection::new() });
if mstatus.mie() {
unsafe { enable() }
}
r
}