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51 lines
1 KiB
Go
51 lines
1 KiB
Go
package worker
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import (
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"github.com/drone/drone/shared/model"
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)
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// http://nesv.github.io/golang/2014/02/25/worker-queues-in-go.html
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type Dispatch struct {
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requests chan *model.Request
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workers chan chan *model.Request
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quit chan bool
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}
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func NewDispatch(requests chan *model.Request, workers chan chan *model.Request) *Dispatch {
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return &Dispatch{
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requests: requests,
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workers: workers,
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quit: make(chan bool),
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}
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}
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// Start tells the dispatcher to start listening
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// for work requests and dispatching to workers.
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func (d *Dispatch) Start() {
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go func() {
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for {
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select {
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// pickup a request from the queue
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case request := <-d.requests:
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go func() {
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// find an available worker and
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// send the request to that worker
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worker := <-d.workers
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worker <- request
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}()
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// listen for a signal to exit
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case <-d.quit:
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return
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}
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}
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}()
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}
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// Stop tells the dispatcher to stop listening for new
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// work requests.
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func (d *Dispatch) Stop() {
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go func() { d.quit <- true }()
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}
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