/
worker.go
74 lines (65 loc) · 1.4 KB
/
worker.go
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package miner
import (
"sync"
"time"
"github.com/vitelabs/go-vite/interval/common"
"github.com/vitelabs/go-vite/interval/common/log"
)
// worker
type worker struct {
MinerLifecycle
workChan <-chan time.Time
chain SnapshotChainRW
coinbase common.Address
mu sync.Mutex
updateWg sync.WaitGroup
updateCh chan int // update goroutine closed event chan
}
func (w *worker) Init() {
w.PreInit()
defer w.PostInit()
}
func (w *worker) Start() {
w.PreStart()
defer w.PostStart()
w.updateCh = make(chan int)
go w.update(w.updateCh)
}
func (w *worker) Stop() {
w.PreStop()
defer w.PostStop()
close(w.updateCh) // close update goroutine
w.updateWg.Wait()
}
// get workChan and insert snapshot block chain
func (w *worker) update(ch chan int) {
w.updateWg.Add(1)
defer w.updateWg.Done()
for !w.Stopped() {
// A real event arrived, process interesting content
select {
// Handle ChainHeadEvent
case t, ok := <-w.workChan:
if !ok {
log.Warn("channel closed.")
if !w.Stopped() {
time.Sleep(time.Second)
}
} else {
log.Info("start working once.")
w.genAndInsert(t)
}
case <-ch: // closed event chan
log.Info("worker.update closed.")
return
}
}
}
func (w *worker) genAndInsert(t time.Time) {
w.mu.Lock()
defer w.mu.Unlock()
w.chain.MiningSnapshotBlock(w.coinbase, t.Unix())
}
func (w *worker) setWorkCh(newWorkCh <-chan time.Time) {
w.workChan = newWorkCh
}