/
persist.go
58 lines (48 loc) · 1.49 KB
/
persist.go
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
// Copyright 2019 DxChain, All rights reserved.
// Use of this source code is governed by an Apache
// License 2.0 that can be found in the LICENSE file.
package storageclient
import (
"os"
"path/filepath"
"github.com/DxChainNetwork/godx/common"
"github.com/DxChainNetwork/godx/log"
)
var settingsMetadata = common.Metadata{
Header: "storage client Settings",
Version: PersistStorageClientVersion,
}
type persistence struct {
MaxDownloadSpeed int64
MaxUploadSpeed int64
}
func (client *StorageClient) loadPersist() error {
// make directory
err := os.MkdirAll(client.staticFilesDir, 0700)
if err != nil {
return err
}
// initialize logger
client.log = log.New()
return client.loadSettings()
}
// save StorageClient settings into storageclient.json file
func (client *StorageClient) saveSettings() error {
return common.SaveDxJSON(settingsMetadata, filepath.Join(client.persistDir, PersistFilename), client.persist)
}
// load prior StorageClient settings
func (client *StorageClient) loadSettings() error {
client.persist = persistence{}
err := common.LoadDxJSON(settingsMetadata, filepath.Join(client.persistDir, PersistFilename), &client.persist)
if os.IsNotExist(err) {
client.persist.MaxDownloadSpeed = DefaultMaxDownloadSpeed
client.persist.MaxUploadSpeed = DefaultMaxUploadSpeed
err = client.saveSettings()
if err != nil {
return err
}
} else if err != nil {
return err
}
return client.setBandwidthLimits(client.persist.MaxUploadSpeed, client.persist.MaxUploadSpeed)
}