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fs.watch: decouple from bun.Watcher, own inotify/FSEvents/kqueue directly #29952

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Merged
Jarred-Sumner merged 10 commits into from
Apr 30, 2026
Merged

fs.watch: decouple from bun.Watcher, own inotify/FSEvents/kqueue directly #29952

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63e9712
fs.watch: decouple from bun.Watcher, own inotify/FSEvents/kqueue dire…
robobun Apr 29, 2026
7a94c29
[autofix.ci] apply automated fixes
autofix-ci[bot] Apr 29, 2026
158296a
path_watcher: detach reader threads instead of storing undefined handle
robobun Apr 29, 2026
f2b14bc
path_watcher: fix three races flagged in review
robobun Apr 29, 2026
a3a0c85
path_watcher(linux): re-fetch wd_map entry each dispatch iteration
robobun Apr 29, 2026
7bdde12
path_watcher(freebsd): propagate kevent registration failure
robobun Apr 29, 2026
211e35d
path_watcher: fix macOS addWatch-error race, drop DCLP fast path, str…
robobun Apr 29, 2026
070a615
path_watcher(linux): update cached subpath when inotify re-returns a wd
robobun Apr 29, 2026
be68ee7
path_watcher(freebsd): reject stale events when kevent fd is recycled…
robobun Apr 29, 2026
dd8732c
path_watcher: address review — bun.sys/bun.path/bun.DirIterator, dedu…
robobun Apr 30, 2026
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6 changes: 2 additions & 4 deletions src/bun.js/node/fs_events.zig
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Original file line number Diff line number Diff line change
Expand Up @@ -576,7 +576,7 @@ pub const FSEventsWatcher = struct {
recursive: bool,
ctx: ?*anyopaque,

pub const Callback = PathWatcher.Callback;
pub const Callback = *const fn (ctx: ?*anyopaque, event: Event, is_file: bool) void;
pub const UpdateEndCallback = *const fn (ctx: ?*anyopaque) void;

pub fn init(loop: *FSEventsLoop, path: string, recursive: bool, callback: Callback, updateEnd: UpdateEndCallback, ctx: ?*anyopaque) *FSEventsWatcher {
Expand Down Expand Up @@ -640,11 +640,9 @@ pub fn closeAndWait() void {
const string = []const u8;

const std = @import("std");
const EventType = @import("./path_watcher.zig").PathWatcher.EventType;
const Semaphore = std.Thread.Semaphore;

const PathWatcher = @import("./path_watcher.zig").PathWatcher;
const EventType = PathWatcher.EventType;

const bun = @import("bun");
const Mutex = bun.Mutex;
const UnboundedQueue = bun.threading.UnboundedQueue;
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