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package roadrunner
import (
"github.com/spiral/goridge"
"os/exec"
)
// PipeFactory connects to workers using standard streams (STDIN, STDOUT pipes).
type PipeFactory struct {
}
// NewPipeFactory returns new factory instance and starts listening
func NewPipeFactory() *PipeFactory {
return &PipeFactory{}
}
// NewWorker creates worker and connects it to appropriate relay or returns error
func (f *PipeFactory) NewWorker(cmd *exec.Cmd) (w *Worker, err error) {
w, err = NewWorker(cmd)
if err != nil {
return nil, err
}
in, err := cmd.StdoutPipe()
if err != nil {
return nil, err
}
out, err := cmd.StdinPipe()
if err != nil {
return nil, err
}
if err := w.Start(); err != nil {
return nil, err
}
w.attach(goridge.NewPipeRelay(in, out))
return w, nil
}
// Close closes all open factory descriptors.
func (f *PipeFactory) Close() error {
return nil
}
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