1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
// SPDX-License-Identifier: GPL-3.0-or-later
//go:build linux
package dmcache
import (
"context"
"fmt"
"os/exec"
"time"
"github.com/netdata/netdata/go/plugins/logger"
)
func newDmsetupExec(ndsudoPath string, timeout time.Duration, log *logger.Logger) *dmsetupExec {
return &dmsetupExec{
Logger: log,
ndsudoPath: ndsudoPath,
timeout: timeout,
}
}
type dmsetupExec struct {
*logger.Logger
ndsudoPath string
timeout time.Duration
}
func (e *dmsetupExec) cacheStatus() ([]byte, error) {
ctx, cancel := context.WithTimeout(context.Background(), e.timeout)
defer cancel()
cmd := exec.CommandContext(ctx, e.ndsudoPath, "dmsetup-status-cache")
e.Debugf("executing '%s'", cmd)
bs, err := cmd.Output()
if err != nil {
return nil, fmt.Errorf("error on '%s': %v", cmd, err)
}
return bs, nil
}
|
