Last active
July 28, 2023 13:54
-
-
Save bodokaiser/4635e800f26c68d37da5 to your computer and use it in GitHub Desktop.
Request worker pool written in Go.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
package pool | |
import ( | |
"fmt" | |
"net/http" | |
"sync" | |
) | |
var ( | |
MaxPoolQueue = 100 | |
MaxPoolWorker = 10 | |
) | |
type Pool struct { | |
wg *sync.WaitGroup | |
queue chan *http.Request | |
errors chan error | |
} | |
func NewPool() *Pool { | |
return &Pool{ | |
wg: &sync.WaitGroup{}, | |
queue: make(chan *http.Request, MaxPoolQueue), | |
errors: make(chan error), | |
} | |
} | |
func (p *Pool) Add(r *http.Request) { | |
p.wg.Add(1) | |
p.queue <- r | |
} | |
func (p *Pool) Run() error { | |
for i := 0; i < MaxPoolWorker; i++ { | |
go p.doWork() | |
} | |
for { | |
select { | |
case err := <-p.errors: | |
return err | |
default: | |
p.wg.Wait() | |
} | |
} | |
return nil | |
} | |
func (p *Pool) doWork() { | |
for r := range p.queue { | |
fmt.Printf("Request to %s\n", r.Host) | |
p.wg.Done() | |
_, err := http.DefaultClient.Do(r) | |
if err != nil { | |
p.errors <- err | |
} | |
} | |
} |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment