30 lines
919 B
Rust
30 lines
919 B
Rust
use std::collections::HashMap;
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fn print(name: &str, indent: usize, mods: &HashMap<&str, Vec<&str>>) {
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println!("{}{} {}", if indent == 0 { "-" } else { " " }, " ".repeat(indent), name);
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if let Some(uses_list) = mods.get(name) {
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for name in uses_list {
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print(name, indent + 2, mods);
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}
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}
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}
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fn main() {
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let modules = procfs::modules().unwrap();
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// each module has a list of what other modules use it. Let's invert this and create a list of the modules used by each module.
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// This maps a module name to a list of modules that it uses
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let mut map: HashMap<&str, Vec<&str>> = HashMap::new();
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for module in modules.values() {
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for name in &module.used_by {
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map.entry(name).or_default().push(&module.name);
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}
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}
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// println!("{:?}", map["xt_policy"]);
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for modname in map.keys() {
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print(modname, 0, &map);
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}
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}
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