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#[cfg(feature = "serde1")]
use serde::{Deserialize, Serialize};
use std::io::BufRead;
use super::ProcResult;
use crate::{process::Pfn, split_into_num};
#[derive(Debug, PartialEq, Eq, Clone, Hash)]
#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
pub struct Iomem(pub Vec<(usize, PhysicalMemoryMap)>);
impl crate::FromBufRead for Iomem {
fn from_buf_read<R: BufRead>(r: R) -> ProcResult<Self> {
let mut vec = Vec::new();
for line in r.lines() {
let line = expect!(line);
let (indent, map) = PhysicalMemoryMap::from_line(&line)?;
vec.push((indent, map));
}
Ok(Iomem(vec))
}
}
#[derive(Debug, PartialEq, Eq, Clone, Hash)]
#[cfg_attr(feature = "serde1", derive(Serialize, Deserialize))]
pub struct PhysicalMemoryMap {
/// The address space in the process that the mapping occupies.
pub address: (u64, u64),
pub name: String,
}
impl PhysicalMemoryMap {
fn from_line(line: &str) -> ProcResult<(usize, PhysicalMemoryMap)> {
let indent = line.chars().take_while(|c| *c == ' ').count() / 2;
let line = line.trim();
let mut s = line.split(" : ");
let address = expect!(s.next());
let name = expect!(s.next());
Ok((
indent,
PhysicalMemoryMap {
address: split_into_num(address, '-', 16)?,
name: String::from(name),
},
))
}
/// Get the PFN range for the mapping
///
/// First element of the tuple (start) is included.
/// Second element (end) is excluded
pub fn get_range(&self) -> impl crate::WithSystemInfo<Output = (Pfn, Pfn)> {
move |si: &crate::SystemInfo| {
let start = self.address.0 / si.page_size();
let end = (self.address.1 + 1) / si.page_size();
(Pfn(start), Pfn(end))
}
}
}