/
stdio.go
50 lines (41 loc) · 1013 Bytes
/
stdio.go
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package rpc
import (
"context"
"errors"
"io"
"net"
"os"
"time"
)
// DialStdIO creates a client on stdin/stdout.
func DialStdIO(ctx context.Context) (*Client, error) {
return DialIO(ctx, os.Stdin, os.Stdout)
}
// DialIO creates a client which uses the given IO channels
func DialIO(ctx context.Context, in io.Reader, out io.Writer) (*Client, error) {
return newClient(ctx, func(_ context.Context) (ServerCodec, error) {
return NewCodec(stdioConn{
in: in,
out: out,
}), nil
})
}
type stdioConn struct {
in io.Reader
out io.Writer
}
func (io stdioConn) Read(b []byte) (n int, err error) {
return io.in.Read(b)
}
func (io stdioConn) Write(b []byte) (n int, err error) {
return io.out.Write(b)
}
func (io stdioConn) Close() error {
return nil
}
func (io stdioConn) RemoteAddr() string {
return "/dev/stdin"
}
func (io stdioConn) SetWriteDeadline(t time.Time) error {
return &net.OpError{Op: "set", Net: "stdio", Source: nil, Addr: nil, Err: errors.New("deadline not supported")}
}