- Concurrency limiting goroutine pool.
- Limits the concurrency of task execution, not the number of tasks queued.
- Never blocks submitting tasks, no matter how many tasks are queued.
- Support timeout
- Support through security queues queue
The simplest way to install the library is to run:
$ go get github.com/xxjwxc/gowp
package main
import (
"fmt"
"time"
"github.com/xxjwxc/gowp/workpool"
)
func main() {
wp := workpool.New(10) // Set the maximum number of threads
for i := 0; i < 20; i++ { // Open 20 requests
ii := i
wp.Do(func() error {
for j := 0; j < 10; j++ { // 0-10 values per print
fmt.Println(fmt.Sprintf("%v->\t%v", ii, j))
time.Sleep(1 * time.Second)
}
//time.Sleep(1 * time.Second)
return nil
})
}
wp.Wait()
fmt.Println("down")
}package main
import (
"fmt"
"time"
"github.com/xxjwxc/gowp/workpool"
)
func main() {
wp := workpool.New(10) // Set the maximum number of threads
for i := 0; i < 20; i++ {
ii := i
wp.Do(func() error {
for j := 0; j < 10; j++ { // 0-10 values per print
fmt.Println(fmt.Sprintf("%v->\t%v", ii, j))
if ii == 1 {
return errors.Cause(errors.New("my test err")) // have err return
}
time.Sleep(1 * time.Second)
}
return nil
})
}
err := wp.Wait()
if err != nil {
fmt.Println(err)
}
fmt.Println("down")
}package main
import (
"fmt"
"time"
"github.com/xxjwxc/gowp/workpool"
)
func main() {
wp := workpool.New(5) // Set the maximum number of threads
for i := 0; i < 10; i++ {
// ii := i
wp.Do(func() error {
for j := 0; j < 5; j++ {
//fmt.Println(fmt.Sprintf("%v->\t%v", ii, j))
time.Sleep(1 * time.Second)
}
return nil
})
fmt.Println(wp.IsDone())
}
wp.Wait()
fmt.Println(wp.IsDone())
fmt.Println("down")
}package main
import (
"fmt"
"time"
"github.com/xxjwxc/gowp/workpool"
)
func main() {
wp := workpool.New(5) // Set the maximum number of threads
for i := 0; i < 10; i++ {
ii := i
wp.DoWait(func() error {
for j := 0; j < 5; j++ {
fmt.Println(fmt.Sprintf("%v->\t%v", ii, j))
// if ii == 1 {
// return errors.New("my test err")
// }
time.Sleep(1 * time.Second)
}
return nil
//time.Sleep(1 * time.Second)
//return errors.New("my test err")
})
}
err := wp.Wait()
if err != nil {
fmt.Println(err)
}
fmt.Println("down")
}package main
import (
"fmt"
"time"
"time"
"github.com/xxjwxc/gowp/workpool"
)
func main() {
wp := workpool.New(5) // Set the maximum number of threads
wp.SetTimeout(time.Millisecond) // set max timeout
for i := 0; i < 10; i++ {
ii := i
wp.DoWait(func() error {
for j := 0; j < 5; j++ {
fmt.Println(fmt.Sprintf("%v->\t%v", ii, j))
time.Sleep(1 * time.Second)
}
return nil
})
}
err := wp.Wait()
if err != nil {
fmt.Println(err)
}
fmt.Println("down")
}package main
import (
"fmt"
"sync"
"time"
"github.com/xxjwxc/gowp/limiter"
)
func main() {
limiter := limiter.NewLimiter(limiter.WithLimit(10), limiter.WithNamespace("test"), limiter.WithTsTimeout(true) /*, limiter.WithRedis(res)*/)
var wg sync.WaitGroup
for i := 0; i < 20; i++ {
wg.Add(1)
go func() {
defer wg.Done()
token, _ := limiter.Acquire(10) // get
fmt.Println(token)
time.Sleep(1 * time.Second)
limiter.Release(token)
}()
}
wg.Wait()
fmt.Println("down")
}package main
import (
"fmt"
"sync"
"time"
"github.com/xxjwxc/gowp/limiter"
"github.com/xxjwxc/public/myredis"
)
func main() {
conf := myredis.InitRedis(myredis.WithAddr("127.0.0.1:6379"), myredis.WithPwd("123456"), myredis.WithGroupName("test"))
res, err := myredis.NewRedis(conf)
if err != nil {
fmt.Println(err)
return
}
limiter := limiter.NewLimiter(limiter.WithRedis(res), limiter.WithLimit(10), limiter.WithNamespace("test") /*, limiter.WithRedis(res)*/)
var wg sync.WaitGroup
for i := 0; i < 20; i++ {
wg.Add(1)
go func() {
defer wg.Done()
token, _ := limiter.Acquire(10)
fmt.Println(token)
time.Sleep(1 * time.Second)
limiter.Release(token)
}()
}
wg.Wait()
fmt.Println("down")
}