micro/server/rpc_stream.go
2019-01-10 21:25:31 +00:00

72 lines
1.1 KiB
Go

package server
import (
"context"
"sync"
"github.com/micro/go-micro/codec"
)
// Implements the Streamer interface
type rpcStream struct {
sync.RWMutex
id string
closed bool
err error
request Request
codec codec.Codec
context context.Context
}
func (r *rpcStream) Context() context.Context {
return r.context
}
func (r *rpcStream) Request() Request {
return r.request
}
func (r *rpcStream) Send(msg interface{}) error {
r.Lock()
defer r.Unlock()
resp := codec.Message{
Endpoint: r.request.Endpoint(),
Id: r.id,
Type: codec.Response,
}
return r.codec.Write(&resp, msg)
}
func (r *rpcStream) Recv(msg interface{}) error {
r.Lock()
defer r.Unlock()
req := new(codec.Message)
req.Type = codec.Request
if err := r.codec.ReadHeader(req, req.Type); err != nil {
// discard body
r.codec.ReadBody(nil)
return err
}
// we need to stay up to date with sequence numbers
r.id = req.Id
return r.codec.ReadBody(msg)
}
func (r *rpcStream) Error() error {
r.RLock()
defer r.RUnlock()
return r.err
}
func (r *rpcStream) Close() error {
r.Lock()
defer r.Unlock()
r.closed = true
return r.codec.Close()
}