mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-12-21 01:32:12 +00:00
30 lines
965 B
Go
30 lines
965 B
Go
|
// GoToSocial
|
||
|
|
// Copyright (C) GoToSocial Authors admin@gotosocial.org
|
||
|
|
// SPDX-License-Identifier: AGPL-3.0-or-later
|
||
|
|
//
|
||
|
|
// 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 util
|
||
|
|
|
||
|
|
// DoOnce wraps a function to only perform it once.
|
||
|
|
func DoOnce(fn func()) func() {
|
||
|
|
var once int32
|
||
|
|
return func() {
|
||
|
|
if once == 0 {
|
||
|
|
fn()
|
||
|
|
once = 1
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|