我正在尝试实现一个 housie 游戏,其中一个 goroutine 生成数字,其他 3 个 goroutine 检查这些是否在它们的令牌中,并通知生产者是否生成了所有数字。我已经通过以下方式在 golang 中实现了它。这会导致死锁。知道为什么会这样吗?这是一个“作业问题”,我只是在 go 中实施它以更好地学习。
package main
import (
"fmt"
"math/rand"
)
type PersonID int
func contains(s []int, e int) bool {
for _, a := range s {
if a == e {
return true
}
}
return false
}
func Person(called_number chan int, claim_prize chan PersonID, received chan bool, coupon []int, person_id PersonID) {
numFound := 0
for i := 0; i < len(coupon); i++ {
current_number := <-called_number
found := contains(coupon, current_number)
if found {
numFound++
}
if numFound == len(coupon) {
claim_prize <- person_id
} else {
received <- true
}
}
}
func main() {
var called_number chan int
var claim_prize chan PersonID
var received chan bool
tokens := make([][]int, 3)
for i := 0; i < 3; i++ {
tokens[i] = make([]int, 12)
for j := 0; j < 12; j++ {
num := rand.Intn(100) + 1
found := contains(tokens[i], num)
for found {
num = rand.Intn(100) + 1
found = contains(tokens[i], num)
}
tokens[i][j] = num
}
}
go Person(called_number, claim_prize, received, tokens[0], 0)
go Person(called_number, claim_prize, received, tokens[1], 1)
go Person(called_number, claim_prize, received, tokens[2], 2)
claimants := make([]PersonID, 0)
prev_called := make(map[int]bool)
for i := 0; i < 100; i++ {
if len(claimants) == 3 {
break
}
num := rand.Intn(100) + 1
_, ok := prev_called[num]
for ok {
num = rand.Intn(100) + 1
_, ok = prev_called[num]
}
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