mirror of
https://github.com/crazybber/go-pattern-examples.git
synced 2024-11-22 03:46:03 +03:00
add a fan_in_out test
This commit is contained in:
Edward
parent
80cb3ddd5e
commit
4d6d56c338
@ -5,7 +5,7 @@ import (
|
||||
"testing"
|
||||
)
|
||||
|
||||
func TestMergeDataSeq(T *testing.T) {
|
||||
func TestFanInNumbersSeq(T *testing.T) {
|
||||
|
||||
//第一路输入源
|
||||
dataStreams1 := []int{13, 44, 56, 99, 9, 45, 67, 90, 78, 23}
|
||||
|
||||
@ -1,276 +0,0 @@
|
||||
package fanout
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
func run() {
|
||||
ctx, cancelFunc := context.WithCancel(context.Background())
|
||||
defer cancelFunc()
|
||||
var errcList []chan error
|
||||
|
||||
// res := fanin(fanout(generateNumbers(ctx), squareNumbers))
|
||||
|
||||
nChan, errc, err := generateNumbers(ctx)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
errcList = append(errcList, errc)
|
||||
|
||||
fChanl, errcl, err := fanout(ctx, nChan, squareNumbers)
|
||||
errcList = append(errcList, errcl...)
|
||||
|
||||
res, errRes, err := fanin(fChanl, errcl)
|
||||
|
||||
go func() {
|
||||
for {
|
||||
select {
|
||||
case r := <-res:
|
||||
v, ok := r.(int)
|
||||
if !ok {
|
||||
// TODO
|
||||
_ = ok
|
||||
}
|
||||
fmt.Println(v)
|
||||
case e := <-errRes:
|
||||
fmt.Println(e)
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
fmt.Println("finished")
|
||||
time.Sleep(10 * time.Duration(time.Second))
|
||||
}
|
||||
|
||||
type Op func(context.Context, chan interface{}) (chan interface{}, chan error, error)
|
||||
|
||||
func generateNumbers(ctx context.Context) (chan interface{}, chan error, error) {
|
||||
fmt.Println("generateNumbers called")
|
||||
out := make(chan interface{}, 100)
|
||||
errc := make(chan error, 100)
|
||||
|
||||
go func() {
|
||||
defer close(out)
|
||||
defer close(errc)
|
||||
|
||||
for i := 0; i < 10; i++ {
|
||||
fmt.Println("gen: ", i)
|
||||
out <- i
|
||||
}
|
||||
}()
|
||||
|
||||
return out, errc, nil
|
||||
}
|
||||
|
||||
func fanout(ctx context.Context, in chan interface{}, fct Op) ([]chan interface{}, []chan error, error) {
|
||||
fmt.Println("fanout called")
|
||||
var out []chan interface{}
|
||||
var errcl []chan error
|
||||
|
||||
for i := 0; i < 5; i++ {
|
||||
res, errc, err := fct(ctx, in)
|
||||
// Todo: manage error
|
||||
_ = err
|
||||
out = append(out, res)
|
||||
errcl = append(errcl, errc)
|
||||
}
|
||||
|
||||
return out, errcl, nil
|
||||
}
|
||||
|
||||
func squareNumbers(ctx context.Context, in chan interface{}) (chan interface{}, chan error, error) {
|
||||
fmt.Println("squareNumbers called")
|
||||
out := make(chan interface{}, 100)
|
||||
errc := make(chan error, 100)
|
||||
|
||||
go func() {
|
||||
for v := range in {
|
||||
num, _ := v.(int)
|
||||
|
||||
squared := num * num
|
||||
|
||||
select {
|
||||
case out <- squared:
|
||||
case <-ctx.Done():
|
||||
fmt.Println("ctx done")
|
||||
return
|
||||
}
|
||||
}
|
||||
close(out)
|
||||
}()
|
||||
|
||||
return out, errc, nil
|
||||
}
|
||||
|
||||
func fanin(ins []chan interface{}, errcl []chan error) (chan interface{}, chan error, error) {
|
||||
fmt.Println("fanin called")
|
||||
out := make(chan interface{}, 100)
|
||||
errcout := make(chan error, 100)
|
||||
var waitgroup sync.WaitGroup
|
||||
|
||||
length := len(ins) + len(errcl)
|
||||
waitgroup.Add(length)
|
||||
|
||||
for _, v := range ins {
|
||||
go func(w chan interface{}) {
|
||||
for val := range w {
|
||||
out <- val
|
||||
}
|
||||
waitgroup.Done()
|
||||
}(v)
|
||||
}
|
||||
|
||||
for _, e := range errcl {
|
||||
go func(errc chan error) {
|
||||
for v := range errc {
|
||||
errcout <- v
|
||||
}
|
||||
waitgroup.Done()
|
||||
}(e)
|
||||
}
|
||||
|
||||
go func() {
|
||||
waitgroup.Wait()
|
||||
close(out)
|
||||
close(errcout)
|
||||
}()
|
||||
|
||||
return out, errcout, nil
|
||||
}
|
||||
func main() {
|
||||
ctx, cancelFunc := context.WithCancel(context.Background())
|
||||
defer cancelFunc()
|
||||
var errcList []chan error
|
||||
|
||||
// res := fanin(fanout(generateNumbers(ctx), squareNumbers))
|
||||
|
||||
nChan, errc, err := generateNumbers(ctx)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
errcList = append(errcList, errc)
|
||||
|
||||
fChanl, errcl, err := fanout(ctx, nChan, squareNumbers)
|
||||
errcList = append(errcList, errcl...)
|
||||
|
||||
res, errRes, err := fanin(fChanl, errcl)
|
||||
|
||||
go func() {
|
||||
for {
|
||||
select {
|
||||
case r := <-res:
|
||||
v, ok := r.(int)
|
||||
if !ok {
|
||||
// TODO
|
||||
_ = ok
|
||||
}
|
||||
fmt.Println(v)
|
||||
case e := <-errRes:
|
||||
fmt.Println(e)
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
fmt.Println("finished")
|
||||
time.Sleep(10 * time.Duration(time.Second))
|
||||
}
|
||||
|
||||
type Op func(context.Context, chan interface{}) (chan interface{}, chan error, error)
|
||||
|
||||
func generateNumbers(ctx context.Context) (chan interface{}, chan error, error) {
|
||||
fmt.Println("generateNumbers called")
|
||||
out := make(chan interface{}, 100)
|
||||
errc := make(chan error, 100)
|
||||
|
||||
go func() {
|
||||
defer close(out)
|
||||
defer close(errc)
|
||||
|
||||
for i := 0; i < 10; i++ {
|
||||
fmt.Println("gen: ", i)
|
||||
out <- i
|
||||
}
|
||||
}()
|
||||
|
||||
return out, errc, nil
|
||||
}
|
||||
|
||||
func fanout(ctx context.Context, in chan interface{}, fct Op) ([]chan interface{}, []chan error, error) {
|
||||
fmt.Println("fanout called")
|
||||
var out []chan interface{}
|
||||
var errcl []chan error
|
||||
|
||||
for i := 0; i < 5; i++ {
|
||||
res, errc, err := fct(ctx, in)
|
||||
// Todo: manage error
|
||||
_ = err
|
||||
out = append(out, res)
|
||||
errcl = append(errcl, errc)
|
||||
}
|
||||
|
||||
return out, errcl, nil
|
||||
}
|
||||
|
||||
func squareNumbers(ctx context.Context, in chan interface{}) (chan interface{}, chan error, error) {
|
||||
fmt.Println("squareNumbers called")
|
||||
out := make(chan interface{}, 100)
|
||||
errc := make(chan error, 100)
|
||||
|
||||
go func() {
|
||||
for v := range in {
|
||||
num, _ := v.(int)
|
||||
|
||||
squared := num * num
|
||||
|
||||
select {
|
||||
case out <- squared:
|
||||
case <-ctx.Done():
|
||||
fmt.Println("ctx done")
|
||||
return
|
||||
}
|
||||
}
|
||||
close(out)
|
||||
}()
|
||||
|
||||
return out, errc, nil
|
||||
}
|
||||
|
||||
func fanin(ins []chan interface{}, errcl []chan error) (chan interface{}, chan error, error) {
|
||||
fmt.Println("fanin called")
|
||||
out := make(chan interface{}, 100)
|
||||
errcout := make(chan error, 100)
|
||||
var waitgroup sync.WaitGroup
|
||||
|
||||
length := len(ins) + len(errcl)
|
||||
waitgroup.Add(length)
|
||||
|
||||
for _, v := range ins {
|
||||
go func(w chan interface{}) {
|
||||
for val := range w {
|
||||
out <- val
|
||||
}
|
||||
waitgroup.Done()
|
||||
}(v)
|
||||
}
|
||||
|
||||
for _, e := range errcl {
|
||||
go func(errc chan error) {
|
||||
for v := range errc {
|
||||
errcout <- v
|
||||
}
|
||||
waitgroup.Done()
|
||||
}(e)
|
||||
}
|
||||
|
||||
go func() {
|
||||
waitgroup.Wait()
|
||||
close(out)
|
||||
close(errcout)
|
||||
}()
|
||||
|
||||
return out, errcout, nil
|
||||
}
|
||||
140
gomore/05_fan_out/fan_out_in_test.go
Normal file
140
gomore/05_fan_out/fan_out_in_test.go
Normal file
@ -0,0 +1,140 @@
|
||||
package fanout
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
"sync"
|
||||
"testing"
|
||||
"time"
|
||||
)
|
||||
|
||||
func TestFanInOut(T *testing.T) {
|
||||
ctx, cancelFunc := context.WithCancel(context.Background())
|
||||
defer cancelFunc()
|
||||
var errList []chan error
|
||||
|
||||
nChan, err, err := generateNumbers(ctx)
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
errList = append(errList, err)
|
||||
|
||||
fChannel, errList, err := fanout(ctx, nChan, squareNumbers)
|
||||
errList = append(errList, errList...)
|
||||
|
||||
res, errRes, err := fanin(fChannel, errList)
|
||||
|
||||
go func() {
|
||||
for {
|
||||
select {
|
||||
case r := <-res:
|
||||
v, ok := r.(int)
|
||||
if !ok {
|
||||
// TODO
|
||||
_ = ok
|
||||
}
|
||||
fmt.Println(v)
|
||||
case e := <-errRes:
|
||||
fmt.Println(e)
|
||||
}
|
||||
}
|
||||
}()
|
||||
|
||||
fmt.Println("finished")
|
||||
time.Sleep(10 * time.Duration(time.Second))
|
||||
}
|
||||
|
||||
type Op func(context.Context, chan interface{}) (chan interface{}, chan error, error)
|
||||
|
||||
func generateNumbers(ctx context.Context) (chan interface{}, chan error, error) {
|
||||
fmt.Println("generateNumbers called")
|
||||
out := make(chan interface{}, 100)
|
||||
err := make(chan error, 100)
|
||||
|
||||
go func() {
|
||||
defer close(out)
|
||||
defer close(err)
|
||||
|
||||
for i := 0; i < 10; i++ {
|
||||
fmt.Println("gen: ", i)
|
||||
out <- i
|
||||
}
|
||||
}()
|
||||
|
||||
return out, err, nil
|
||||
}
|
||||
|
||||
func fanout(ctx context.Context, in chan interface{}, fct Op) ([]chan interface{}, []chan error, error) {
|
||||
fmt.Println("fanout called")
|
||||
var out []chan interface{}
|
||||
var errList []chan error
|
||||
|
||||
for i := 0; i < 5; i++ {
|
||||
res, err, err := fct(ctx, in)
|
||||
// Todo: manage error
|
||||
_ = err
|
||||
out = append(out, res)
|
||||
errList = append(errList, err)
|
||||
}
|
||||
|
||||
return out, errList, nil
|
||||
}
|
||||
|
||||
func squareNumbers(ctx context.Context, in chan interface{}) (chan interface{}, chan error, error) {
|
||||
fmt.Println("squareNumbers called")
|
||||
out := make(chan interface{}, 100)
|
||||
err := make(chan error, 100)
|
||||
|
||||
go func() {
|
||||
for v := range in {
|
||||
num, _ := v.(int)
|
||||
squared := num * num
|
||||
select {
|
||||
case out <- squared:
|
||||
case <-ctx.Done():
|
||||
fmt.Println("ctx done")
|
||||
return
|
||||
}
|
||||
}
|
||||
close(out)
|
||||
}()
|
||||
|
||||
return out, err, nil
|
||||
}
|
||||
|
||||
func fanin(ins []chan interface{}, errList []chan error) (chan interface{}, chan error, error) {
|
||||
fmt.Println("fanin called")
|
||||
out := make(chan interface{}, 100)
|
||||
errout := make(chan error, 100)
|
||||
var waitgroup sync.WaitGroup
|
||||
|
||||
length := len(ins) + len(errList)
|
||||
waitgroup.Add(length)
|
||||
|
||||
for _, v := range ins {
|
||||
go func(w chan interface{}) {
|
||||
for val := range w {
|
||||
out <- val
|
||||
}
|
||||
waitgroup.Done()
|
||||
}(v)
|
||||
}
|
||||
|
||||
for _, e := range errList {
|
||||
go func(err chan error) {
|
||||
for v := range err {
|
||||
errout <- v
|
||||
}
|
||||
waitgroup.Done()
|
||||
}(e)
|
||||
}
|
||||
|
||||
go func() {
|
||||
waitgroup.Wait()
|
||||
close(out)
|
||||
close(errout)
|
||||
}()
|
||||
|
||||
return out, errout, nil
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user