package profile
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import (
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"context"
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"demo/deliver"
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"fmt"
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"os"
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"time"
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)
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func shmrecver(ctx context.Context, c deliver.Deliver, index int, ch chan<- bool) {
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var msg []byte
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var err error
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var t int64
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var elapse int64
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count := 0
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for {
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select {
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case <-ctx.Done():
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return
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default:
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msg, err = c.Recv()
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if err != nil {
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c.Close()
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url := "hello"
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i, err := deliver.NewClientWithError(deliver.Shm, url)
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for {
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if err == nil {
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break
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}
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time.Sleep(1 * time.Second)
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i, err = deliver.NewClientWithError(deliver.Shm, url)
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fmt.Println("client create failed : ", err)
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}
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c = i
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fmt.Println("recv error : ", err)
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continue
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}
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if ch != nil {
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ch <- true
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}
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if t == 0 {
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t = time.Now().UnixNano()
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}
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elapse = time.Now().UnixNano() - t
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count++
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if elapse > 1e9 {
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fmt.Printf("NODE-%d: RECEIVED \"%d\" data %s len %d, use \"%d\" ns\n",
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index, count, string(msg), len(msg), elapse)
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elapse = 0
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count = 0
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t = 0
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}
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}
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// time.Sleep(10 * time.Millisecond)
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}
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}
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func Shmrecv(ctx context.Context, server bool, ipc string, count int) {
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blocks := 2
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if server {
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s, err := deliver.NewServerWithError(deliver.Shm, ipc, blocks, dLen)
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for {
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if err == nil {
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break
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}
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time.Sleep(1 * time.Second)
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s, err = deliver.NewServerWithError(deliver.Shm, ipc, blocks, dLen)
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}
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go shmrecver(ctx, s, 0, nil)
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} else {
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recvers(ctx, ipc, count, nil)
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return
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chWaiter := make(chan bool, count)
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cs := recvers(ctx, ipc, count, chWaiter)
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go func() {
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waitCount := 0
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for {
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select {
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case <-ctx.Done():
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return
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case <-chWaiter:
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waitCount = 0
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default:
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if waitCount > 200*3 {
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for _, v := range cs {
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v.Close()
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}
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// cs = recvers(ctx, ipc, count, chWaiter)
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// fmt.Println("restart recievers")
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// waitCount = 0
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// continue
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}
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time.Sleep(time.Millisecond * 5)
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waitCount++
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}
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}
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}()
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}
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}
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func recvers(ctx context.Context, url string, count int, ch chan<- bool) []deliver.Deliver {
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for {
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file := "/dev/shm/" + url
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exist, _ := pathExists(file)
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if exist {
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break
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}
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fmt.Println("wait for shm server start")
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time.Sleep(time.Second)
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}
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var cs []deliver.Deliver
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for i := 0; i < count; i++ {
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c, err := deliver.NewClientWithError(deliver.Shm, url)
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for {
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if err == nil {
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break
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}
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time.Sleep(1 * time.Second)
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c, err = deliver.NewClientWithError(deliver.Shm, url)
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fmt.Println(i, " client create failed : ", err)
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}
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cs = append(cs, c)
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go shmrecver(ctx, c, i, ch)
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}
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return cs
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}
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func pathExists(path string) (bool, error) {
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_, err := os.Stat(path)
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if err == nil {
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return true, nil
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}
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if os.IsNotExist(err) {
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return false, nil
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}
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return false, err
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}
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