68 lines
1.7 KiB
Go
68 lines
1.7 KiB
Go
// Copyright 2023 PingCAP, Inc.
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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 scheduler
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import (
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"slices"
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"github.com/pingcap/tidb/pkg/disttask/framework/proto"
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)
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// VerifyTaskStateTransform verifies whether the task state transform is valid.
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func VerifyTaskStateTransform(from, to proto.TaskState) bool {
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rules := map[proto.TaskState][]proto.TaskState{
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proto.TaskStatePending: {
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proto.TaskStateRunning,
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proto.TaskStateCancelling,
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proto.TaskStatePausing,
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proto.TaskStateSucceed,
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proto.TaskStateFailed,
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},
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proto.TaskStateRunning: {
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proto.TaskStateSucceed,
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proto.TaskStateReverting,
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proto.TaskStateFailed,
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proto.TaskStateCancelling,
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proto.TaskStatePausing,
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},
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proto.TaskStateSucceed: {},
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proto.TaskStateReverting: {
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proto.TaskStateReverted,
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// no revert_failed now
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// proto.TaskStateRevertFailed,
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},
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proto.TaskStateFailed: {},
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proto.TaskStateCancelling: {
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proto.TaskStateReverting,
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},
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proto.TaskStatePausing: {
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proto.TaskStatePaused,
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},
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proto.TaskStatePaused: {
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proto.TaskStateResuming,
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},
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proto.TaskStateResuming: {
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proto.TaskStateRunning,
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},
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proto.TaskStateReverted: {},
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}
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if from == to {
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return true
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}
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return slices.Contains(rules[from], to)
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}
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