func (c *client) Call(ctx Context, serviceName, methodName string, req, resp thrift.TStruct) (bool, error) {
call, err := c.sc.BeginCall(ctx, serviceName+"::"+methodName, &tchannel.CallOptions{Format: tchannel.Thrift})
if err != nil {
return false, err
}
writer, err := call.Arg2Writer()
if err != nil {
return false, err
}
if err := writeHeaders(writer, ctx.Headers()); err != nil {
return false, err
}
if err := writer.Close(); err != nil {
return false, err
}
writer, err = call.Arg3Writer()
if err != nil {
return false, err
}
protocol := thrift.NewTBinaryProtocolTransport(&readWriterTransport{Writer: writer})
if err := req.Write(protocol); err != nil {
return false, err
}
if err := writer.Close(); err != nil {
return false, err
}
reader, err := call.Response().Arg2Reader()
if err != nil {
return false, err
}
headers, err := readHeaders(reader)
if err != nil {
return false, err
}
ctx.SetResponseHeaders(headers)
if err := reader.Close(); err != nil {
return false, err
}
success := !call.Response().ApplicationError()
reader, err = call.Response().Arg3Reader()
if err != nil {
return success, err
}
protocol = thrift.NewTBinaryProtocolTransport(&readWriterTransport{Reader: reader})
if err := resp.Read(protocol); err != nil {
return success, err
}
if err := reader.Close(); err != nil {
return success, err
}
return success, nil
}
func writeArgs(call *tchannel.OutboundCall, headers map[string]string, req thrift.TStruct) error {
writer, err := call.Arg2Writer()
if err != nil {
return err
}
if err := writeHeaders(writer, headers); err != nil {
return err
}
if err := writer.Close(); err != nil {
return err
}
writer, err = call.Arg3Writer()
if err != nil {
return err
}
wp := getProtocolWriter(writer)
if err := req.Write(wp.protocol); err != nil {
thriftProtocolPool.Put(wp)
return err
}
thriftProtocolPool.Put(wp)
return writer.Close()
}
// SerializeThrift takes a thrift struct and returns the serialized bytes
// of that struct using the thrift binary protocol. This is a temporary
// measure before frames can be forwarded directly past the endpoint to the proper
// destinaiton.
func SerializeThrift(s athrift.TStruct) ([]byte, error) {
var b []byte
var buffer = bytes.NewBuffer(b)
transport := athrift.NewStreamTransportW(buffer)
if err := s.Write(athrift.NewTBinaryProtocolTransport(transport)); err != nil {
return nil, err
}
if err := transport.Flush(); err != nil {
return nil, err
}
return buffer.Bytes(), nil
}
// WriteStruct writes the given Thrift struct to a writer. It pools TProtocols.
func WriteStruct(writer io.Writer, s thrift.TStruct) error {
wp := getProtocolWriter(writer)
err := s.Write(wp.protocol)
thriftProtocolPool.Put(wp)
return err
}