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fs: update ChangeNotifier interface

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This introduces a channel to the ChangeNotify function, which can be
used to update the poll-interval and cleanly exit the polling function.
This commit is contained in:
Fabian Möller
2018-08-25 21:28:57 +02:00
parent 96ce49ec4e
commit 1eec59e091
7 changed files with 103 additions and 53 deletions
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15
vfs/vfs.go
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@ -176,6 +176,7 @@ type VFS struct {
usageMu sync.Mutex
usageTime time.Time
usage *fs.Usage
pollChan chan time.Duration
}
// Options is options for creating the vfs
@ -223,13 +224,13 @@ func New(f fs.Fs, opt *Options) *VFS {
// Create root directory
vfs.root = newDir(vfs, f, nil, fsDir)
// Start polling if required
if vfs.Opt.PollInterval > 0 {
if do := vfs.f.Features().ChangeNotify; do != nil {
do(vfs.notifyFunc, vfs.Opt.PollInterval)
} else {
fs.Infof(f, "poll-interval is not supported by this remote")
}
// Start polling function
if do := vfs.f.Features().ChangeNotify; do != nil {
vfs.pollChan = make(chan time.Duration)
do(vfs.notifyFunc, vfs.pollChan)
vfs.pollChan <- vfs.Opt.PollInterval
} else {
fs.Infof(f, "poll-interval is not supported by this remote")
}
vfs.SetCacheMode(vfs.Opt.CacheMode)