feat(syscall): add inotify syscalls #72
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Pull request overview
This PR adds inotify support to StarryOS, implementing the core inotify data structure and three syscalls (inotify_init1, inotify_add_watch, inotify_rm_watch). The implementation provides the basic infrastructure for filesystem monitoring, though the complete event notification chain from filesystem operations is not yet implemented.
Key Changes
- Introduced
InotifyInstancestruct with watch management, event queue, and poll support - Implemented three inotify syscalls with proper integration into the syscall handler
- Added event serialization with Linux-compatible binary format
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 11 comments.
Show a summary per file
| File | Description |
|---|---|
api/src/syscall/mod.rs |
Added inotify syscall handlers and removed inotify_init1 from dummy fd list |
api/src/syscall/fs/mod.rs |
Added inotify module to fs syscall exports |
api/src/syscall/fs/inotify.rs |
Implemented three inotify syscalls with file descriptor management and validation |
api/src/file/mod.rs |
Exported InotifyInstance and added inotify module |
api/src/file/inotify.rs |
Core inotify implementation with data structures, watch management, and FileLike/Pollable trait support |
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api/src/file/inotify.rs
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| event_queue: Mutex<VecDeque<Vec<u8>>>, | ||
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| // watches: wd -> (path, event mask) | ||
| watches: Mutex<BTreeMap<i32, (String, u32)>>, |
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Since the subjects of inotify are inodes (not pathnames), related data should be stored in Location::user_data instead. You should base your implementation on that API.
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Ok, I have modified my implementation.
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api/src/file/inotify.rs
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| let location = self.resolve_path(path)?; | ||
| // Generate a new watch descriptor | ||
| let wd = { | ||
| let mut next = self.next_wd.lock(); |
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AtomicI32 would be sufficient for this usage
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Changed next_wd from Mutex<i32> to AtomicI32 per your suggestion.
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Description
Implementation
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