37 lines
1.2 KiB
Go
37 lines
1.2 KiB
Go
// Vikunja is a to-do list application to facilitate your life.
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// Copyright 2018-present Vikunja and contributors. All rights reserved.
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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//go:build unix
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package credentials
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import (
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"os"
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"golang.org/x/sys/unix"
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)
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// flockExclusive takes an exclusive advisory lock on the open file. The lock
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// is released when the file is closed (or via flockUnlock). Blocks until the
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// lock is available.
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func flockExclusive(f *os.File) error {
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return unix.Flock(int(f.Fd()), unix.LOCK_EX)
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}
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func flockUnlock(f *os.File) error {
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return unix.Flock(int(f.Fd()), unix.LOCK_UN)
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}
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