func (p *UDFProcess) readResponse() (*udf.Response, error) {
err := udf.ReadMessage(&p.responseBuf, p.stdout, p.response)
if err != nil {
return nil, err
}
return p.response, nil
}
func TestMessage_ReadWriteMultiple(t *testing.T) {
req := &udf.Request{}
req.Message = &udf.Request_Keepalive{
Keepalive: &udf.KeepaliveRequest{
Time: 42,
},
}
var buf bytes.Buffer
var count int = 1e4
for i := 0; i < count; i++ {
err := udf.WriteMessage(req, &buf)
if err != nil {
t.Fatal(err)
}
}
nreq := &udf.Request{}
var b []byte
for i := 0; i < count; i++ {
err := udf.ReadMessage(&b, &buf, nreq)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(req, nreq) {
t.Fatalf("unexpected request: i:%d \ngot %v\nexp %v", i, nreq, req)
}
}
}
func TestMessage_ReadWrite(t *testing.T) {
req := &udf.Request{}
req.Message = &udf.Request_Keepalive{
Keepalive: &udf.KeepaliveRequest{
Time: 42,
},
}
var buf bytes.Buffer
err := udf.WriteMessage(req, &buf)
if err != nil {
t.Fatal(err)
}
nreq := &udf.Request{}
var b []byte
err = udf.ReadMessage(&b, &buf, nreq)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(req, nreq) {
t.Errorf("unexpected request: \ngot %v\nexp %v", nreq, req)
}
}
func (c *CommandHelper) readRequests() error {
defer c.inr.Close()
defer close(c.Requests)
buf := bufio.NewReader(c.inr)
var b []byte
for {
req := &udf.Request{}
err := udf.ReadMessage(&b, buf, req)
if err == io.EOF {
return nil
}
if err != nil {
return err
}
c.Requests <- req
}
}
func (o *IO) readRequests() error {
defer o.inr.Close()
defer close(o.Requests)
buf := bufio.NewReader(o.inr)
var b []byte
for {
req := &udf.Request{}
err := udf.ReadMessage(&b, buf, req)
if err == io.EOF {
return nil
}
if err != nil {
return err
}
o.Requests <- req
}
}
func (a *Agent) readLoop() error {
defer a.Handler.Stop()
defer a.in.Close()
in := bufio.NewReader(a.in)
var buf []byte
request := &udf.Request{}
for {
err := udf.ReadMessage(&buf, in, request)
if err == io.EOF {
break
}
if err != nil {
return err
}
// Hand message to handler
var res *udf.Response
switch msg := request.Message.(type) {
case *udf.Request_Info:
info, err := a.Handler.Info()
if err != nil {
return err
}
res = &udf.Response{}
res.Message = &udf.Response_Info{
Info: info,
}
case *udf.Request_Init:
init, err := a.Handler.Init(msg.Init)
if err != nil {
return err
}
res = &udf.Response{}
res.Message = &udf.Response_Init{
Init: init,
}
case *udf.Request_Keepalive:
res = &udf.Response{
Message: &udf.Response_Keepalive{
Keepalive: &udf.KeepaliveResponse{
Time: msg.Keepalive.Time,
},
},
}
case *udf.Request_Snapshot:
snapshot, err := a.Handler.Snaphost()
if err != nil {
return err
}
res = &udf.Response{}
res.Message = &udf.Response_Snapshot{
Snapshot: snapshot,
}
case *udf.Request_Restore:
restore, err := a.Handler.Restore(msg.Restore)
if err != nil {
return err
}
res = &udf.Response{}
res.Message = &udf.Response_Restore{
Restore: restore,
}
case *udf.Request_Begin:
err := a.Handler.BeginBatch(msg.Begin)
if err != nil {
return err
}
case *udf.Request_Point:
err := a.Handler.Point(msg.Point)
if err != nil {
return err
}
case *udf.Request_End:
err := a.Handler.EndBatch(msg.End)
if err != nil {
return err
}
}
if res != nil {
a.outResponses <- res
}
}
return nil
}
