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lib/model: Refactor Index/IndexUpdate

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GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4688
LGTM: calmh, AudriusButkevicius
This commit is contained in:
Simon Frei 2018-01-19 14:33:16 +00:00 committed by Audrius Butkevicius
parent 8e9c9b9553
commit 93b5180e62
1 changed files with 27 additions and 43 deletions
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70
lib/model/model.go
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@ -823,66 +823,52 @@ func (m *Model) RemoteNeedFolderFiles(device protocol.DeviceID, folder string, p
// Index is called when a new device is connected and we receive their full index.
// Implements the protocol.Model interface.
func (m *Model) Index(deviceID protocol.DeviceID, folder string, fs []protocol.FileInfo) {
l.Debugf("IDX(in): %s %q: %d files", deviceID, folder, len(fs))
if !m.folderSharedWith(folder, deviceID) {
l.Debugf("Unexpected folder ID %q sent from device %q; ensure that the folder exists and that this device is selected under \"Share With\" in the folder configuration.", folder, deviceID)
return
}
m.fmut.RLock()
files, ok := m.folderFiles[folder]
runner := m.folderRunners[folder]
m.fmut.RUnlock()
if !ok {
l.Fatalf("Index for nonexistent folder %q", folder)
}
if runner != nil {
// Runner may legitimately not be set if this is the "cleanup" Index
// message at startup.
defer runner.SchedulePull()
}
m.pmut.RLock()
m.deviceDownloads[deviceID].Update(folder, makeForgetUpdate(fs))
m.pmut.RUnlock()
files.Drop(deviceID)
files.Update(deviceID, fs)
events.Default.Log(events.RemoteIndexUpdated, map[string]interface{}{
"device": deviceID.String(),
"folder": folder,
"items": len(fs),
"version": files.Sequence(deviceID),
})
m.handleIndex(deviceID, folder, fs, false)
}
// IndexUpdate is called for incremental updates to connected devices' indexes.
// Implements the protocol.Model interface.
func (m *Model) IndexUpdate(deviceID protocol.DeviceID, folder string, fs []protocol.FileInfo) {
l.Debugf("%v IDXUP(in): %s / %q: %d files", m, deviceID, folder, len(fs))
m.handleIndex(deviceID, folder, fs, true)
}
func (m *Model) handleIndex(deviceID protocol.DeviceID, folder string, fs []protocol.FileInfo, update bool) {
op := "Index"
if update {
op += " update"
}
l.Debugf("%v (in): %s / %q: %d files", op, deviceID, folder, len(fs))
if !m.folderSharedWith(folder, deviceID) {
l.Debugf("Update for unexpected folder ID %q sent from device %q; ensure that the folder exists and that this device is selected under \"Share With\" in the folder configuration.", folder, deviceID)
l.Debugf("%v for unexpected folder ID %q sent from device %q; ensure that the folder exists and that this device is selected under \"Share With\" in the folder configuration.", op, folder, deviceID)
return
}
m.fmut.RLock()
files := m.folderFiles[folder]
runner, ok := m.folderRunners[folder]
files, existing := m.folderFiles[folder]
runner, running := m.folderRunners[folder]
m.fmut.RUnlock()
if !ok {
l.Fatalf("IndexUpdate for nonexistent folder %q", folder)
if !existing {
l.Fatalf("%v for nonexistent folder %q", op, folder)
}
if running {
defer runner.SchedulePull()
} else if update {
// Runner may legitimately not be set if this is the "cleanup" Index
// message at startup.
l.Fatalf("%v for not running folder %q", op, folder)
}
m.pmut.RLock()
m.deviceDownloads[deviceID].Update(folder, makeForgetUpdate(fs))
m.pmut.RUnlock()
if !update {
files.Drop(deviceID)
}
files.Update(deviceID, fs)
events.Default.Log(events.RemoteIndexUpdated, map[string]interface{}{
@ -891,8 +877,6 @@ func (m *Model) IndexUpdate(deviceID protocol.DeviceID, folder string, fs []prot
"items": len(fs),
"version": files.Sequence(deviceID),
})
runner.SchedulePull()
}
func (m *Model) folderSharedWith(folder string, deviceID protocol.DeviceID) bool {