forked from AbleOS/ableos
67 lines
1.4 KiB
Rust
67 lines
1.4 KiB
Rust
//! A handle module
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use {
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crate::arch::hardware_random_u64,
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core::fmt::{self, Formatter},
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};
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/// An operating system handle without permissions attached
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#[derive(Debug, Eq, Hash, PartialEq, Clone, Copy)]
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pub struct OSHandle {
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id: u64,
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}
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impl OSHandle {
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/// turn a u64 into an OSHandle
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pub fn new_from_u64(id: u64) -> Self {
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Self { id }
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}
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/// Generate a new OSHandle using the HAL random function
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pub fn random_new() -> Self {
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Self {
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id: hardware_random_u64(),
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}
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}
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}
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/// A handle for resources
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#[derive(Debug, Eq, Hash, PartialEq, Clone, Copy)]
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pub struct Handle {
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id: OSHandle,
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// TODO: Update this to be indexes into the caps
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perms: Permissions,
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}
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impl Handle {
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/// make a new handle
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pub fn new() -> Handle {
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Handle {
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id: OSHandle::random_new(),
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perms: Permissions::new(),
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}
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}
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/// represent the os handle as a u64
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pub fn as_u64(&self) -> u64 {
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self.id.id
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}
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}
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impl fmt::Display for Handle {
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fn fmt(&self, w: &mut Formatter<'_>) -> Result<(), core::fmt::Error> {
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write!(w, "{:?}", self.id)?;
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Ok(())
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}
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}
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#[derive(PartialEq, Hash, Eq, Debug, Clone, Copy)]
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struct Permissions {
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edit_children: bool,
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edit_attributes: bool,
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}
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impl Permissions {
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fn new() -> Self {
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Self {
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edit_children: true,
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edit_attributes: true,
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}
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}
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}
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