forked from aergoio/aergo
/
stubrequester.go
77 lines (60 loc) · 1.87 KB
/
stubrequester.go
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package syncer
import (
"time"
"github.com/pkg/errors"
)
type StubRequester struct {
sendCh chan interface{}
recvCh chan StubRequestResult
}
type StubRequestResult struct {
result interface{}
err error
}
var (
ErrHubFutureTimeOut = errors.New("stub compRequester request future timeout")
)
func (stubResult *StubRequestResult) Result() (interface{}, error) {
return stubResult.result, stubResult.err
}
func NewStubRequester() *StubRequester {
compRequester := &StubRequester{}
compRequester.sendCh = make(chan interface{}, 1000)
compRequester.recvCh = make(chan StubRequestResult, 1000)
return compRequester
}
// handle requestFuture requset
// this api must not use parallel. TODO use lock
func (compRequester *StubRequester) RequestToFutureResult(targetName string, message interface{}, timeout time.Duration, tip string) (interface{}, error) {
compRequester.sendCh <- message
logger.Debug().Msg("stubcompRequester request future req")
var res StubRequestResult
select {
case res = <-compRequester.recvCh:
break
case <-time.After(timeout):
return nil, ErrHubFutureTimeOut
}
logger.Debug().Msg("stubcompRequester request future done")
return res.result, res.err
}
func (compRequester *StubRequester) RequestTo(targetCompName string, message interface{}) {
logger.Debug().Msg("stubcompRequester request")
compRequester.sendCh <- message
}
func (compRequester *StubRequester) TellTo(targetName string, message interface{}) {
logger.Debug().Msg("stubcompRequester tell")
compRequester.sendCh <- message
}
//act like p2p or chain or syncer
func (compRequester *StubRequester) recvMessage() interface{} {
select {
case msg := <-compRequester.sendCh:
logger.Debug().Msg("compRequester received message")
return msg
}
}
//act like p2p or chain or syncer
func (compRequester *StubRequester) sendReply(reply StubRequestResult) {
compRequester.recvCh <- reply
}