mirror of https://github.com/tikv/client-go.git
41 lines
1.1 KiB
Go
41 lines
1.1 KiB
Go
// Copyright 2019 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proxy
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import (
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"errors"
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"sync"
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"github.com/google/uuid"
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)
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// Proxy errors. Use errors.Cause() to determine error type.
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var (
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ErrClientNotFound = errors.New("client not found")
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ErrTxnNotFound = errors.New("txn not found")
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ErrIterNotFound = errors.New("iterator not found")
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)
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// UUID is a global unique ID to identify clients, transactions, or iterators.
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type UUID string
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func insertWithRetry(m *sync.Map, d interface{}) UUID {
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for {
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id := UUID(uuid.New().String())
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if _, hasOld := m.LoadOrStore(id, d); !hasOld {
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return id
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}
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}
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}
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