40 lines
718 B
Go
40 lines
718 B
Go
package main
|
|
|
|
import (
|
|
"fmt"
|
|
"math/rand"
|
|
"time"
|
|
)
|
|
|
|
var (
|
|
Web = fakeSearch("web")
|
|
Image = fakeSearch("image")
|
|
Video = fakeSearch("video")
|
|
)
|
|
|
|
type Search func(query string) Result
|
|
|
|
type Result struct {
|
|
Goodies string
|
|
}
|
|
|
|
func fakeSearch(kind string) Search {
|
|
return func(query string) Result {
|
|
time.Sleep(time.Duration(rand.Intn(100)) * time.Millisecond)
|
|
return Result{fmt.Sprintf("%s result for %q", kind, query)}
|
|
}
|
|
}
|
|
|
|
func Google(query string) (results []Result) {
|
|
c := make(chan Result)
|
|
go func(){c <- Web(query)}()
|
|
go func(){c <- Image(query)}()
|
|
go func(){c <- Video(query)}()
|
|
|
|
for i :=0; i < 3; i++ {
|
|
result := <-c
|
|
results = append(results, result)
|
|
}
|
|
return
|
|
}
|