63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
package peers
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import (
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"sync"
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"go.uber.org/zap"
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"github.com/ethereum/go-ethereum/p2p/discv5"
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"github.com/status-im/status-go/common"
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"github.com/status-im/status-go/discovery"
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"github.com/status-im/status-go/logutils"
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)
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// Register manages register topic queries
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type Register struct {
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discovery discovery.Discovery
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topics []discv5.Topic
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wg sync.WaitGroup
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quit chan struct{}
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}
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// NewRegister creates instance of topic register
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func NewRegister(discovery discovery.Discovery, topics ...discv5.Topic) *Register {
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return &Register{discovery: discovery, topics: topics}
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}
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// Start topic register query for every topic
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func (r *Register) Start() error {
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if !r.discovery.Running() {
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return ErrDiscv5NotRunning
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}
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r.quit = make(chan struct{})
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for _, topic := range r.topics {
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r.wg.Add(1)
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go func(t discv5.Topic) {
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defer common.LogOnPanic()
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logutils.ZapLogger().Debug("v5 register topic", zap.String("topic", string(t)))
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if err := r.discovery.Register(string(t), r.quit); err != nil {
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logutils.ZapLogger().Error("error registering topic", zap.String("topic", string(t)), zap.Error(err))
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}
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r.wg.Done()
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}(topic)
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}
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return nil
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}
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// Stop all register topic queries and waits for them to exit
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func (r *Register) Stop() {
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if r.quit == nil {
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return
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}
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select {
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case <-r.quit:
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return
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default:
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close(r.quit)
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}
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logutils.ZapLogger().Debug("waiting for register queries to exit")
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r.wg.Wait()
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}
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