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refactor: scope-local
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‎.github/workflows/ci.yml‎

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run: cargo clippy --all-targets --all-features -- -D warnings
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test:
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runs-on: ubuntu-latest
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runs-on: ubuntu-22.04
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needs: check
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steps:
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- uses: actions/checkout@v4

‎Cargo.toml‎

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[package]
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name = "axns"
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name = "scope-local"
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version = "0.1.0"
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edition = "2024"
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description = "Scope local storage"
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authors = ["Asakura Mizu <[email protected]>"]
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keywords = ["arceos"]
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license = "MIT OR Apache-2.0"
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repository = "https://github.com/Starry-Mix-THU/scope-local"
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[dependencies]
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percpu = "0.2"
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spin = { version = "0.9", default-features = false, features = ["lazy"] }
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extern-trait = { version = "0.1.1", optional = true }
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[dev-dependencies]
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parking_lot = { version = "0.12.3", features = ["arc_lock"] }
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[features]
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thread-local = ["dep:extern-trait"]
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ctor = "0.4.2"

‎LICENSE-APACHE-2.0‎

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‎LICENSE-MIT‎

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MIT License
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Copyright (c) 2025 Asakura Mizu
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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SOFTWARE.

‎README.md‎

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# Resource namespace module for [ArceOS](https://github.com/arceos-org/arceos)
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This was originally introduced by [arceos#224](https://github.com/arceos-org/arceos/pull/224), but it had limited functionality and issues with memory leaks, so the one here is an almost complete rewrite. And we split it from the main repo.
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## Why Do We Need This?
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Namespaces are used to control system resource sharing between threads. This module provides a unified interface to access system resources in different scenarios.
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For a unikernel, there is only one global namespace, so all threads share the same system resources, such as virtual address space, working directory, and file descriptors, etc.
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For a monolithic kernel, each process corresponds to a namespace, all threads in the same process share the same system resources. Different processes have different namespaces and isolated resources.
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For further container support, some global system resources can also be grouped into a namespace.
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# scope-local

‎build.rs‎

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use std::path::Path;
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fn main() {
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if cfg!(target_os = "linux") {
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let ld_script_path = Path::new(std::env!("CARGO_MANIFEST_DIR")).join("percpu.x");
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println!("cargo::rerun-if-changed={}", ld_script_path.display());
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println!("cargo::rustc-link-arg-tests=-no-pie");
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println!("cargo::rustc-link-arg-tests=-T{}", ld_script_path.display());
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}
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}

‎percpu.x‎

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CPU_NUM = 4;
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SECTIONS
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{
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. = ALIGN(4K);
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_percpu_start = .;
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_percpu_end = _percpu_start + SIZEOF(.percpu);
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.percpu 0x0 (NOLOAD) : AT(_percpu_start) {
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_percpu_load_start = .;
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*(.percpu .percpu.*)
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_percpu_load_end = .;
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. = _percpu_load_start + ALIGN(64) * CPU_NUM;
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}
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. = _percpu_end;
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}
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INSERT AFTER .bss;

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