mirror of https://github.com/tikv/client-go.git
63 lines
2.0 KiB
Go
63 lines
2.0 KiB
Go
// Copyright 2021 TiKV Authors
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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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// NOTE: The code in this file is based on code from the
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// TiDB project, licensed under the Apache License v 2.0
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//
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// https://github.com/pingcap/tidb/tree/cc5e161ac06827589c4966674597c137cc9e809c/store/tikv/locate/accessmode.go
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//
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// Copyright 2021 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 locate
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import (
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"fmt"
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)
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// accessMode uses to index stores for different region cache access requirements.
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type accessMode int
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const (
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// tiKVOnly indicates stores list that use for TiKv access(include both leader request and follower read).
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tiKVOnly accessMode = iota
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// tiFlashOnly indicates stores list that use for TiFlash request.
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tiFlashOnly
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// numAccessMode reserved to keep max access mode value.
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numAccessMode
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)
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func (a accessMode) String() string {
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switch a {
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case tiKVOnly:
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return "TiKvOnly"
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case tiFlashOnly:
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return "TiFlashOnly"
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default:
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return fmt.Sprintf("%d", a)
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}
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}
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