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在go语言中优雅退出goroutines

在go语言中优雅退出goroutines,通常需要做以下3点: 1. 向各个goroutines发通知,令其退出,如shutdown. 2. 等待各个goroutines都退出,如: sync.WaitGroup. 3. 在退出goroutine之前,确保数据不丢失(1.停止生产数据。2.关闭数据channel messages. 3. 消费者goroutine检查判断数据channel messages是否有效,若无效,则退出。) package main import ( "fmt" "sync" "os" "os/signal" "syscall" ) func consumer(messages <- chan int, shutdown <- chan int, wg *sync....阅读全文

博文 2016-03-15 12:00:05 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-08-30 05:00:01 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-09-21 04:00:00 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-08-30 01:00:08 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-08-30 03:00:04 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-09-03 16:00:07 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-08-30 02:00:12 htyu_0203_39

go语言接口和方法集问题笔记

注意: 此文章只是我的个人笔记,如有谬误,错误, 请一定指出! package main import "fmt" //IA test for methodset. type IA interface { Value() Pointer() } //A is a test type. type A int //Value receiver. func (a A) Value() { fmt.Printf("Value:%p, %d\n", &a, a) } //Pointer receiver. func (a *A) Pointer() { fmt.Printf("Pointer:%p, %d\n", a, *a) } func main() { //type A method set: ...阅读全文

博文 2016-08-30 04:00:02 htyu_0203_39