mirror of
https://github.com/yunionio/cloudpods.git
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105 lines
3.0 KiB
Go
105 lines
3.0 KiB
Go
// Copyright 2019 Yunion
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package lockman
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import (
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"context"
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"fmt"
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)
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type ILockedClass interface {
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Keyword() string
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}
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type ILockedObject interface {
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ILockedClass
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GetId() string
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}
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type ILockManager interface {
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LockKey(ctx context.Context, key string)
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UnlockKey(ctx context.Context, key string)
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}
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func getClassKey(manager ILockedClass, projectId string) string {
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// assert(getattr(cls, '_resource_name_', None) is not None)
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// return '%s-%s' % (cls._resource_name_, user_cred.tenant_id)
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return fmt.Sprintf("%s-%s", manager.Keyword(), projectId)
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}
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func getObjectKey(model ILockedObject) string {
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// assert(getattr(obj, '_resource_name_', None) is not None)
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// assert(getattr(obj, 'id', None) is not None)
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// return '%s-%s' % (obj._resource_name_, obj.id)
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return getRawObjectKey(model.Keyword(), model.GetId())
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}
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func getRawObjectKey(resName string, resId string) string {
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return fmt.Sprintf("%s-%s", resName, resId)
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}
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func getJointObjectKey(model ILockedObject, model2 ILockedObject) string {
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// def _get_joint_object_key(self, obj1, obj2, user_cred):
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// return '%s-%s' % (self._get_object_key(obj1, user_cred),
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// self._get_object_key(obj2, user_cred))
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return fmt.Sprintf("%s-%s", getObjectKey(model), getObjectKey(model2))
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}
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var _lockman ILockManager
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func Init(man ILockManager) {
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_lockman = man
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}
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func LockClass(ctx context.Context, manager ILockedClass, projectId string) {
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key := getClassKey(manager, projectId)
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_lockman.LockKey(ctx, key)
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}
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func ReleaseClass(ctx context.Context, manager ILockedClass, projectId string) {
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key := getClassKey(manager, projectId)
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_lockman.UnlockKey(ctx, key)
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}
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func LockObject(ctx context.Context, model ILockedObject) {
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key := getObjectKey(model)
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_lockman.LockKey(ctx, key)
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}
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func ReleaseObject(ctx context.Context, model ILockedObject) {
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key := getObjectKey(model)
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_lockman.UnlockKey(ctx, key)
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}
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func LockRawObject(ctx context.Context, resName string, resId string) {
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key := getRawObjectKey(resName, resId)
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_lockman.LockKey(ctx, key)
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}
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func ReleaseRawObject(ctx context.Context, resName string, resId string) {
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key := getRawObjectKey(resName, resId)
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_lockman.UnlockKey(ctx, key)
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}
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func LockJointObject(ctx context.Context, model ILockedObject, model2 ILockedObject) {
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key := getJointObjectKey(model, model2)
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_lockman.LockKey(ctx, key)
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}
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func ReleaseJointObject(ctx context.Context, model ILockedObject, model2 ILockedObject) {
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key := getJointObjectKey(model, model2)
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_lockman.UnlockKey(ctx, key)
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}
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