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fs: add ChangeNotify and backend support for it (#2094)

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* fs: rename DirChangeNotify to ChangeNotify

* cache: switch to ChangeNotify

* ChangeNotify: keep order of notifications
This commit is contained in:
Remus Bunduc
2018-03-08 22:03:34 +02:00
committed by GitHub
parent b3f55d6bda
commit 70f07fd3ac
35 changed files with 447 additions and 230 deletions
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10
vfs/dir.go
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@ -95,7 +95,7 @@ func (d *Dir) Node() Node {
// ForgetAll ensures the directory and all its children are purged
// from the cache.
func (d *Dir) ForgetAll() {
d.ForgetPath("")
d.ForgetPath("", fs.EntryDirectory)
}
// ForgetPath clears the cache for itself and all subdirectories if
@ -103,9 +103,13 @@ func (d *Dir) ForgetAll() {
// directory it is called from.
// It is not possible to traverse the directory tree upwards, i.e.
// you cannot clear the cache for the Dir's ancestors or siblings.
func (d *Dir) ForgetPath(relativePath string) {
func (d *Dir) ForgetPath(relativePath string, entryType fs.EntryType) {
// if we are requested to forget a file, we use its parent
absPath := path.Join(d.path, relativePath)
if absPath == "." {
if entryType != fs.EntryDirectory {
absPath = path.Dir(absPath)
}
if absPath == "." || absPath == "/" {
absPath = ""
}