57 lines
1.5 KiB
Rust
57 lines
1.5 KiB
Rust
// SPDX-License-Identifier: MPL-2.0
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use alloc::sync::Arc;
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use aster_systree::{EmptyNode, SysBranchNode};
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use systree_node::ConfigRootNode;
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use crate::{fs::configfs::fs::ConfigFsType, prelude::*};
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mod fs;
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mod inode;
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mod systree_node;
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#[cfg(ktest)]
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mod test;
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// This method should be called during kernel file system initialization,
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// _after_ `aster_systree::init`.
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pub(super) fn init() {
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let config_kernel_sysnode = EmptyNode::new("config".into());
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super::sysfs::register_kernel_sysnode(config_kernel_sysnode).unwrap();
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super::registry::register(&ConfigFsType).unwrap();
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}
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/// Registers a subsystem `SysTree` node under the root node of [`ConfigFs`].
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///
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/// If a subsystem with the same name has already been registered,
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/// this function returns an error.
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///
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/// [`ConfigFs`]: fs::ConfigFs
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#[cfg_attr(not(any(ktest, target_arch = "x86_64")), expect(dead_code))]
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pub fn register_subsystem(subsystem: Arc<dyn SysBranchNode>) -> Result<()> {
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ConfigRootNode::singleton().add_child(subsystem)?;
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Ok(())
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}
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/// Unregisters a subsystem from the root node of [`ConfigFs`] by its name.
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///
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/// If no subsystem with the given name exists, this function returns an error.
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///
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/// [`ConfigFs`]: fs::ConfigFs
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#[expect(dead_code)]
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pub fn unregister_subsystem(name: &str) -> Result<()> {
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ConfigRootNode::singleton().remove_child(name)?;
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Ok(())
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}
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#[cfg(ktest)]
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pub fn init_for_ktest() {
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aster_systree::init_for_ktest();
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super::registry::init();
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super::sysfs::init();
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init();
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}
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