mirror of
https://github.com/tailscale/tailscale.git
synced 2024-12-12 03:04:40 +00:00
71029cea2d
This updates all source files to use a new standard header for copyright and license declaration. Notably, copyright no longer includes a date, and we now use the standard SPDX-License-Identifier header. This commit was done almost entirely mechanically with perl, and then some minimal manual fixes. Updates #6865 Signed-off-by: Will Norris <will@tailscale.com>
33 lines
609 B
Go
33 lines
609 B
Go
// Copyright (c) Tailscale Inc & AUTHORS
|
|
// SPDX-License-Identifier: BSD-3-Clause
|
|
|
|
package syncs
|
|
|
|
import (
|
|
"sync"
|
|
)
|
|
|
|
// AssertLocked panics if m is not locked.
|
|
func AssertLocked(m *sync.Mutex) {
|
|
if m.TryLock() {
|
|
m.Unlock()
|
|
panic("mutex is not locked")
|
|
}
|
|
}
|
|
|
|
// AssertRLocked panics if rw is not locked for reading or writing.
|
|
func AssertRLocked(rw *sync.RWMutex) {
|
|
if rw.TryLock() {
|
|
rw.Unlock()
|
|
panic("mutex is not locked")
|
|
}
|
|
}
|
|
|
|
// AssertWLocked panics if rw is not locked for writing.
|
|
func AssertWLocked(rw *sync.RWMutex) {
|
|
if rw.TryRLock() {
|
|
rw.RUnlock()
|
|
panic("mutex is not rlocked")
|
|
}
|
|
}
|