Method prove

admission/work.go:112–147

prove implements ProveBackend, generate the campaign information. starts cpu pow work.

(abort <-chan interface{}, wg *sync.WaitGroup)

// prove implements ProveBackend, generate the campaign information.
// starts cpu pow work.
func (w *work) prove(abort <-chan interface{}, wg *sync.WaitGroup) {
	defer wg.Done()
	start := time.Now()
	ticker := time.NewTicker(time.Duration(w.timeout))
	defer ticker.Stop()

search:
	for {
		select {
		case <-abort:
			w.mutex.Lock()
			w.err = ErrPowAbort
			w.mutex.Unlock()
			break search
		case <-ticker.C:
			w.mutex.Lock()
			w.err = ErrPowTimeout
			w.mutex.Unlock()
			break search
		default:
			w.mutex.RLock()
			nonce := w.nonce
			w.mutex.RUnlock()

			if nonce < maxNonce && validate(w.difficulty, w.header.Hash().Bytes(), w.coinbase, nonce, w.hashfn) {
				log.Info("found nonce", "block hash", w.header.Hash().Hex(), "difficulty", w.difficulty,
					"sender", w.coinbase.Hex(), "nonce", nonce, "timeCost(s)", time.Since(start).Seconds())
				break search
			}

			w.mutex.Lock()
			w.nonce++
			w.mutex.Unlock()
		}
	}
}