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pub fn are_enabled() -> bool {
use crate::registers::rflags::{self, RFlags};
rflags::read().contains(RFlags::INTERRUPT_FLAG)
}
#[inline]
pub fn enable() {
#[cfg(feature = "inline_asm")]
unsafe {
asm!("sti" :::: "volatile");
}
#[cfg(not(feature = "inline_asm"))]
unsafe {
crate::asm::x86_64_asm_interrupt_enable();
}
}
#[inline]
pub fn disable() {
#[cfg(feature = "inline_asm")]
unsafe {
asm!("cli" :::: "volatile");
}
#[cfg(not(feature = "inline_asm"))]
unsafe {
crate::asm::x86_64_asm_interrupt_disable();
}
}
pub fn without_interrupts<F, R>(f: F) -> R
where
F: FnOnce() -> R,
{
let saved_intpt_flag = are_enabled();
if saved_intpt_flag {
disable();
}
let ret = f();
if saved_intpt_flag {
enable();
}
ret
}
#[inline]
pub fn int3() {
#[cfg(feature = "inline_asm")]
unsafe {
asm!("int3" :::: "volatile");
}
#[cfg(not(feature = "inline_asm"))]
unsafe {
crate::asm::x86_64_asm_int3();
}
}
#[cfg(feature = "inline_asm")]
#[macro_export]
macro_rules! software_interrupt {
($x:expr) => {{
asm!("int $0" :: "N" ($x) :: "volatile");
}};
}
#[cfg(not(feature = "inline_asm"))]
#[macro_export]
macro_rules! software_interrupt {
($x:expr) => {{
compile_error!("software_interrupt not implemented for non-nightly");
}};
}