-
Notifications
You must be signed in to change notification settings - Fork 19
/
closer.go
42 lines (36 loc) · 1.29 KB
/
closer.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
// Copyright (C) 2023 Gobalsky Labs Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package close
type Closer struct {
closeFns []func()
}
// Add adds a function to call during call to CloseAll.
func (c *Closer) Add(closeFn func()) {
c.closeFns = append(c.closeFns, closeFn)
}
// CloseAll calls all close functions in reverse order.
// Higher level-components should be closed first, but are usually instantiated
// last (and, thus, added later to the closer), hence the reverse order.
func (c *Closer) CloseAll() {
for i := len(c.closeFns) - 1; i >= 0; i-- {
c.closeFns[i]()
}
c.closeFns = []func(){}
}
func NewCloser() *Closer {
return &Closer{
closeFns: []func(){},
}
}