Revision e454b591a84dc5465e252da91f65b20fba4d0bb5 authored by Chris Tarazi on 01 June 2021, 20:08:37 UTC, committed by André Martins on 07 June 2021, 12:23:03 UTC
[ upstream commit d620a92632610e293d03e248ac802c0a1177dfa7 ] The subsequent commit will add unit tests that make use of ipv{4,6}RouterAddress and state will need to be cleared during testing. Signed-off-by: Chris Tarazi <chris@isovalent.com> Signed-off-by: Paul Chaignon <paul@cilium.io>
1 parent 3378f8f
lock.go
// Copyright 2018 Authors of Cilium
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package endpoint
import "fmt"
var (
ErrEndpointDeleted = fmt.Errorf("lock failed: endpoint is in the process of being removed")
)
// lockAlive returns error if endpoint was removed, locks underlying mutex otherwise
func (e *Endpoint) lockAlive() error {
e.mutex.Lock()
if e.IsDisconnecting() {
e.mutex.Unlock()
return ErrEndpointDeleted
}
return nil
}
// Unlock unlocks endpoint mutex
func (e *Endpoint) unlock() {
e.mutex.Unlock()
}
// rlockAlive returns error if endpoint was removed, read locks underlying mutex otherwise
func (e *Endpoint) rlockAlive() error {
e.mutex.RLock()
if e.IsDisconnecting() {
e.mutex.RUnlock()
return ErrNotAlive
}
return nil
}
// runlock read unlocks endpoint mutex
func (e *Endpoint) runlock() {
e.mutex.RUnlock()
}
// unconditionalLock should be used only for locking endpoint for
// - setting its state to StateDisconnected
// - handling regular Lock errors
// - reporting endpoint status (like in LogStatus method)
// Use Lock in all other cases
func (e *Endpoint) unconditionalLock() {
e.mutex.Lock()
}
// unconditionalRLock should be used only for reporting endpoint state
func (e *Endpoint) unconditionalRLock() {
e.mutex.RLock()
}
// logDisconnectedMutexAction gets the logger and logs given error with context
func (e *Endpoint) logDisconnectedMutexAction(err error, context string) {
e.getLogger().WithError(err).Error(context)
}
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