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| package main
import (
"errors"
"fmt"
"os/exec"
"time"
)
type Result struct {
data []byte
err error
}
var ErrorExecTimeout = errors.New("exec timeout")
func Exec(cmd string, timeout int64) ([]byte, error) {
c := exec.Command("/bin/bash", "-c", cmd)
t := time.NewTimer(time.Duration(timeout) * time.Second)
done := make(chan bool)
result := &Result{data: []byte{}, err: nil}
go myExec(c, done, result)
select {
case <-done:
// fmt.Println("exec done")
return result.data, result.err
case <-t.C:
c.Process.Kill()
// fmt.Println("timeout")
result.err = ErrorExecTimeout
return result.data, result.err
}
}
func myExec(c *exec.Cmd, ch chan bool, result *Result) {
result.data, result.err = c.CombinedOutput()
ch <- true
}
func main() {
output, err := Exec("sleep 6&&echo hello", 5)
fmt.Println(string(output), err)
}
|
