func getImageRetry(clientName, imageName string,
timeoutTime time.Time) (*image.Image, error) {
imageSrpcClient, err := srpc.DialHTTP("tcp", clientName, 0)
if err != nil {
return nil, err
}
defer imageSrpcClient.Close()
for ; time.Now().Before(timeoutTime); time.Sleep(time.Second) {
img, err := imgclient.GetImage(imageSrpcClient, imageName)
if err != nil {
return nil, err
} else if img != nil {
if err := img.FileSystem.RebuildInodePointers(); err != nil {
return nil, err
}
img.FileSystem.InodeToFilenamesTable()
img.FileSystem.FilenameToInodeTable()
img.FileSystem.HashToInodesTable()
img.FileSystem.ComputeTotalDataBytes()
img.FileSystem.BuildEntryMap()
return img, nil
}
}
return nil, errors.New("timed out getting image")
}
func getImage(client *srpc.Client, name string) (*image.Image, error) {
img, err := imgclient.GetImage(client, name)
if err != nil {
return nil, err
}
if img == nil {
return nil, errors.New(name + ": not found")
}
img.FileSystem.RebuildInodePointers()
return img, nil
}
func (m *Manager) loadImage(imageClient *srpc.Client, name string) (
*srpc.Client, *image.Image, error) {
if imageClient == nil {
var err error
imageClient, err = srpc.DialHTTP("tcp", m.imageServerAddress, 0)
if err != nil {
if !m.loggedDialFailure {
m.logger.Printf("Error dialing: %s: %s\n",
m.imageServerAddress, err)
m.loggedDialFailure = true
}
return nil, nil, err
}
}
img, err := client.GetImage(imageClient, name)
if err != nil {
m.logger.Printf("Error calling: %s\n", err)
imageClient.Close()
return nil, nil, err
}
if img == nil || m.scheduleExpiration(img, name) {
return imageClient, nil, nil
}
if err := img.FileSystem.RebuildInodePointers(); err != nil {
m.logger.Printf("Error building inode pointers for image: %s %s",
name, err)
return imageClient, nil, err
}
// Build cache data now to avoid potential concurrent builds later.
img.FileSystem.InodeToFilenamesTable()
img.FileSystem.FilenameToInodeTable()
img.FileSystem.HashToInodesTable()
img.FileSystem.ComputeTotalDataBytes()
img.FileSystem.BuildEntryMap()
m.logger.Printf("Got image: %s\n", name)
return imageClient, img, nil
}