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package rpcplugin
import (
"io"
"os"
)
// Returns a new IPC for the parent process and a set of files to pass on to the child.
//
// The returned files must be closed after the child process is started.
func NewIPC() (io.ReadWriteCloser, []*os.File, error) {
parentReader, childWriter, err := os.Pipe()
if err != nil {
return nil, nil, err
}
childReader, parentWriter, err := os.Pipe()
if err != nil {
parentReader.Close()
childWriter.Close()
return nil, nil, err
}
return NewReadWriteCloser(NewAsyncReadCloser(parentReader), NewAsyncWriteCloser(parentWriter)), []*os.File{childReader, childWriter}, nil
}
// Returns the IPC instance inherited by the process from its parent.
func InheritedIPC(fd0, fd1 uintptr) (io.ReadWriteCloser, error) {
return NewReadWriteCloser(os.NewFile(fd0, ""), os.NewFile(fd1, "")), nil
}
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