func main() {
flag.Parse()
if len(flag.Args()) != 1 {
println("Usage:", os.Args[0], " DurablePath")
os.Exit(1)
}
_, err := durablefs.OpenFile(flag.Arg(0))
if err != nil {
println(err.Error())
os.Exit(1)
}
// XXX: Need to be able to read unregistered types
}
// ReadCheckpoint reads a checkpoint structure from the durable file dfile.
func ReadCheckpoint(dfile string) (*Checkpoint, error) {
// Fetch service info from durable fs
f, err := durablefs.OpenFile(dfile)
if err != nil {
return nil, err
}
chk_, err := f.Read()
if err != nil {
return nil, err
}
if len(chk_) == 0 {
return nil, circuit.NewError("no values in checkpoint durable file " + dfile)
}
chk, ok := chk_[0].(*Checkpoint)
if !ok {
return nil, circuit.NewError("unexpected checkpoint value (%#v) of type (%T) in durable file %s", chk_[0], chk_[0], dfile)
}
return chk, nil
}