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Concurrency limiting goroutine pool.
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Limits the concurrency of task execution, not the number of tasks queued.
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Never blocks submitting tasks, no matter how many tasks are queued.
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Support through security queues queue
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golang workpool common library
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")
}