Connor Wood
46 lines
916 B
Rust
46 lines
916 B
Rust
use core::mem;
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use alloc::boxed::Box;
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use super::sdt::Sdt;
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use super::rxsdt::Rxsdt;
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#[derive(Debug)]
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pub struct Xsdt(&'static Sdt);
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impl Xsdt {
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pub fn new(sdt: &'static Sdt) -> Option<Xsdt> {
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if &sdt.signature == b"XSDT" {
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Some(Xsdt(sdt))
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} else {
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None
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}
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}
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}
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impl Rxsdt for Xsdt {
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fn iter(&self) -> Box<Iterator<Item = usize>> {
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Box::new(XsdtIter {
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sdt: self.0,
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i: 0
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})
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}
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}
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pub struct XsdtIter {
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sdt: &'static Sdt,
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i: usize
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}
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impl Iterator for XsdtIter {
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type Item = usize;
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fn next(&mut self) -> Option<Self::Item> {
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if self.i < self.sdt.data_len()/mem::size_of::<u64>() {
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let item = unsafe { *(self.sdt.data_address() as *const u64).offset(self.i as isize) };
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self.i += 1;
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Some(item as usize)
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} else {
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None
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}
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}
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}
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