mirror of https://github.com/tikv/client-go.git
56 lines
1.8 KiB
Go
56 lines
1.8 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/unionstore/memdb.go
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//
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// Copyright 2020 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 unionstore
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import (
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"math"
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"github.com/tikv/client-go/v2/internal/unionstore/arena"
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)
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const unlimitedSize = math.MaxUint64
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// IsTombstone returns whether the value is a tombstone.
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func IsTombstone(val []byte) bool { return len(val) == 0 }
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type MemDBCheckpoint = arena.MemDBCheckpoint
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type MemKeyHandle = arena.MemKeyHandle
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type MemDB = artDBWithContext
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var NewMemDB = newArtDBWithContext
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var NewMemDBWithContext = newArtDBWithContext
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