ch9/ch9-01

[giscus[bot]]

ch9/ch9-01

中文版

https://gopl-zh.github.io/ch9/ch9-01.html

[ikingye]

race condition 建议翻译 竞态条件

[xq-120]

9.1

var withdraws = make(chan withdrawChan)

type withdrawChan struct {
	ch     chan bool
	amount int
}

func Withdraw(amount int) bool {
	withDr := withdrawChan{
		amount: amount,
		ch:     make(chan bool),
	}
	withdraws <- withDr
	return <-withDr.ch
}

// 监听goroutine。
func teller() {
	var balance int = 0
	for {
		select {
		case amount := <-deposits:
			balance += amount
		case balances <- balance: 
		case withDr := <-withdraws:
			amount := withDr.amount
			if amount > balance {
				withDr.ch <- false
			} else {
				balance -= amount
				withDr.ch <- true
			}
		}
	}
}

[mefly2012]

这机器翻译没有审查过，很拗口