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watch: fix more data races on darwin (#166)

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This commit is contained in:
Nick Santos 2018-08-23 16:30:35 -04:00 committed by Nicolas De loof
parent 4562b0bf95
commit a6701652d2
1 changed files with 9 additions and 8 deletions
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17
pkg/watch/watcher_darwin.go
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@ -21,9 +21,9 @@ type darwinNotify struct {
// change. // change.
sm *sync.Mutex sm *sync.Mutex
// ignore the first event that says the watched directory // When a watch is created for a directory, we've seen fsevents non-determistically
// has been created. these are fired spuriously on initiation. // fire 0-2 CREATE events for that directory. We want to ignore these.
ignoreCreatedEvents map[string]bool ignoreCreatedEvents map[string]int
} }
func (d *darwinNotify) loop() { func (d *darwinNotify) loop() {
@ -41,9 +41,10 @@ func (d *darwinNotify) loop() {
if e.Flags&fsevents.ItemCreated == fsevents.ItemCreated { if e.Flags&fsevents.ItemCreated == fsevents.ItemCreated {
d.sm.Lock() d.sm.Lock()
shouldIgnore := d.ignoreCreatedEvents[e.Path] ignoreCount := d.ignoreCreatedEvents[e.Path]
shouldIgnore := ignoreCount > 0
if shouldIgnore { if shouldIgnore {
d.ignoreCreatedEvents[e.Path] = false d.ignoreCreatedEvents[e.Path]--
} else { } else {
// If we got a created event for something // If we got a created event for something
// that's not on the ignore list, we assume // that's not on the ignore list, we assume
@ -83,13 +84,13 @@ func (d *darwinNotify) Add(name string) error {
es.Paths = append(es.Paths, name) es.Paths = append(es.Paths, name)
if d.ignoreCreatedEvents == nil { if d.ignoreCreatedEvents == nil {
d.ignoreCreatedEvents = make(map[string]bool, 1) d.ignoreCreatedEvents = make(map[string]int, 1)
} }
d.ignoreCreatedEvents[name] = true d.ignoreCreatedEvents[name] = 2
if len(es.Paths) == 1 { if len(es.Paths) == 1 {
go d.loop()
es.Start() es.Start()
go d.loop()
} else { } else {
es.Restart() es.Restart()
} }