// AddConnection adds a new peer connection to the model. An initial index will
// be sent to the connected peer, thereafter index updates whenever the local
// folder changes.
func (m *Model) AddConnection(rawConn io.Closer, protoConn protocol.Connection) {
deviceID := protoConn.ID()
m.pmut.Lock()
if _, ok := m.protoConn[deviceID]; ok {
panic("add existing device")
}
m.protoConn[deviceID] = protoConn
if _, ok := m.rawConn[deviceID]; ok {
panic("add existing device")
}
m.rawConn[deviceID] = rawConn
cm := m.clusterConfig(deviceID)
protoConn.ClusterConfig(cm)
m.fmut.RLock()
for _, folder := range m.deviceFolders[deviceID] {
fs := m.folderFiles[folder]
go sendIndexes(protoConn, folder, fs, m.folderIgnores[folder])
}
m.fmut.RUnlock()
m.pmut.Unlock()
m.deviceWasSeen(deviceID)
}
func sendIndexes(conn protocol.Connection, folder string, fs *db.FileSet, ignores *ignore.Matcher) {
deviceID := conn.ID()
name := conn.Name()
var err error
if debug {
l.Debugf("sendIndexes for %s-%s/%q starting", deviceID, name, folder)
}
minLocalVer, err := sendIndexTo(true, 0, conn, folder, fs, ignores)
for err == nil {
time.Sleep(5 * time.Second)
if fs.LocalVersion(protocol.LocalDeviceID) <= minLocalVer {
continue
}
minLocalVer, err = sendIndexTo(false, minLocalVer, conn, folder, fs, ignores)
}
if debug {
l.Debugf("sendIndexes for %s-%s/%q exiting: %v", deviceID, name, folder, err)
}
}
func sendIndexTo(initial bool, minLocalVer int64, conn protocol.Connection, folder string, fs *db.FileSet, ignores *ignore.Matcher) (int64, error) {
deviceID := conn.ID()
name := conn.Name()
batch := make([]protocol.FileInfo, 0, indexBatchSize)
currentBatchSize := 0
maxLocalVer := int64(0)
var err error
fs.WithHave(protocol.LocalDeviceID, func(fi db.FileIntf) bool {
f := fi.(protocol.FileInfo)
if f.LocalVersion <= minLocalVer {
return true
}
if f.LocalVersion > maxLocalVer {
maxLocalVer = f.LocalVersion
}
if ignores.Match(f.Name) || symlinkInvalid(folder, f) {
if debug {
l.Debugln("not sending update for ignored/unsupported symlink", f)
}
return true
}
if len(batch) == indexBatchSize || currentBatchSize > indexTargetSize {
if initial {
if err = conn.Index(folder, batch, 0, nil); err != nil {
return false
}
if debug {
l.Debugf("sendIndexes for %s-%s/%q: %d files (<%d bytes) (initial index)", deviceID, name, folder, len(batch), currentBatchSize)
}
initial = false
} else {
if err = conn.IndexUpdate(folder, batch, 0, nil); err != nil {
return false
}
if debug {
l.Debugf("sendIndexes for %s-%s/%q: %d files (<%d bytes) (batched update)", deviceID, name, folder, len(batch), currentBatchSize)
}
}
batch = make([]protocol.FileInfo, 0, indexBatchSize)
currentBatchSize = 0
}
batch = append(batch, f)
currentBatchSize += indexPerFileSize + len(f.Blocks)*indexPerBlockSize
return true
})
if initial && err == nil {
err = conn.Index(folder, batch, 0, nil)
if debug && err == nil {
l.Debugf("sendIndexes for %s-%s/%q: %d files (small initial index)", deviceID, name, folder, len(batch))
}
} else if len(batch) > 0 && err == nil {
err = conn.IndexUpdate(folder, batch, 0, nil)
if debug && err == nil {
l.Debugf("sendIndexes for %s-%s/%q: %d files (last batch)", deviceID, name, folder, len(batch))
}
}
return maxLocalVer, err
}