50 lines
794 B
Go
50 lines
794 B
Go
package service
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import (
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"sync"
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"github.com/micro/go-micro/network/router"
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)
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type svcWatcher struct {
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sync.RWMutex
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opts router.WatchOptions
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resChan chan *router.Event
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done chan struct{}
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}
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// Next is a blocking call that returns watch result
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func (w *svcWatcher) Next() (*router.Event, error) {
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for {
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select {
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case res := <-w.resChan:
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switch w.opts.Service {
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case res.Route.Service, "*":
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return res, nil
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default:
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continue
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}
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case <-w.done:
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return nil, router.ErrWatcherStopped
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}
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}
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}
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// Chan returns event channel
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func (w *svcWatcher) Chan() (<-chan *router.Event, error) {
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return w.resChan, nil
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}
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// Stop stops watcher
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func (w *svcWatcher) Stop() {
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w.Lock()
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defer w.Unlock()
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select {
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case <-w.done:
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return
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default:
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close(w.done)
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}
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}
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