func (o *OutputStreamer) Connect(ports []fwk.Port) error {
var err error
o.ports = make([]fwk.Port, len(ports))
copy(o.ports, ports)
// FIXME(sbinet): handle local/remote files, protocols
o.w, err = os.Create(o.Name)
if err != nil {
return err
}
o.rio, err = rio.NewWriter(o.w)
if err != nil {
return err
}
for _, port := range o.ports {
rec := o.rio.Record(port.Name)
err = rec.Connect(port.Name, reflect.New(port.Type))
if err != nil {
return err
}
o.recs = append(o.recs, rec)
}
return err
}
func (svc *hsvc) StartSvc(ctx fwk.Context) error {
var err error
for name, stream := range svc.streams {
switch stream.Mode {
case Read:
_, dup := svc.r[name]
if dup {
return fwk.Errorf("%s: duplicate read-stream %q", svc.Name(), name)
}
// FIXME(sbinet): handle remote/local files + protocols
f, err := os.Open(stream.Name)
if err != nil {
return fwk.Errorf("error opening file [%s]: %v", stream.Name, err)
}
r, err := rio.NewReader(f)
if err != nil {
return fwk.Errorf("error opening rio-stream [%s]: %v", stream.Name, err)
}
svc.r[name] = istream{
name: name,
fname: stream.Name,
f: f,
r: r,
}
case Write:
_, dup := svc.w[name]
if dup {
return fwk.Errorf("%s: duplicate write-stream %q", svc.Name(), name)
}
// FIXME(sbinet): handle remote/local files + protocols
f, err := os.Create(stream.Name)
if err != nil {
return fwk.Errorf("error creating file [%s]: %v", stream.Name, err)
}
w, err := rio.NewWriter(f)
if err != nil {
return fwk.Errorf("error creating rio-stream [%s]: %v", stream.Name, err)
}
svc.w[name] = ostream{
name: name,
fname: stream.Name,
f: f,
w: w,
}
default:
return fwk.Errorf("%s: invalid stream mode (%d)", svc.Name(), stream.Mode)
}
}
return err
}