Share a very easy-to-use GO concurrency control library!

This article will introduce you to the relevant knowledge about Golang and talk about a very easy-to-use golang concurrency control library. I hope it will be helpful to everyone.

Concurrency

##install

GOPROXY=https://goproxy.cn go get -v github.com/lxzan/concurrency@latest

Feature

Limit on the number of concurrent coroutines
• Support
• contex.Contex
Support
• panic recover, return contains The error
recursively implements task scheduling of the error stack and does not rely on
• time.Ticker and channel

Usage

WorkerGroup work group, adding a group of tasks and waiting for execution to complete, can be a good alternative to
• WaitGroup.

package mainimport (
    "fmt"
    "github.com/lxzan/concurrency"
    "sync/atomic")func main() {
    sum := int64(0)
    w := concurrency.NewWorkerGroup()
    for i := int64(1); i <= 10; i++ {
        w.AddJob(concurrency.Job{
            Args: i,
            Do: func(args interface{}) error {
                fmt.Printf("%v ", args)
                atomic.AddInt64(&sum, args.(int64))
                return nil
            },
        })
    }
    w.StartAndWait()
    fmt.Printf("sum=%d\n", sum)}

4 5 6 7 8 9 10 1 3 2 sum=55

WorkerQueue Work queue, you can continuously add tasks to it, and execute it once the CPU resources are free [Recommendation:
• go tutorial]

package mainimport (
    "fmt"
    "github.com/lxzan/concurrency"
    "time")func Add(args interface{}) error {
    arr := args.([]int)
    ans := 0
    for _, item := range arr {
        ans += item    }
    fmt.Printf("args=%v, ans=%d\n", args, ans)
    return nil}func Mul(args interface{}) error {
    arr := args.([]int)
    ans := 1
    for _, item := range arr {
        ans *= item    }
    fmt.Printf("args=%v, ans=%d\n", args, ans)
    return nil}func main() {
    args1 := []int{1, 3}
    args2 := []int{1, 3, 5}
    w := concurrency.NewWorkerQueue()
    w.AddJob(
        concurrency.Job{Args: args1, Do: Add},
        concurrency.Job{Args: args1, Do: Mul},
        concurrency.Job{Args: args2, Do: Add},
        concurrency.Job{Args: args2, Do: Mul},
    )
    w.StopAndWait(30*time.Second)}

args=[1 3], ans=4args=[1 3 5], ans=15args=[1 3], ans=3args=[1 3 5], ans=9

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