b5159e8976
However, the enum tree is not supported since they do not support them. But other than that, mysql and maria DB seem to both be supported.
48 lines
1.4 KiB
Go
48 lines
1.4 KiB
Go
// Go MySQL Driver - A MySQL-Driver for Go's database/sql package.
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//
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// Copyright 2022 The Go-MySQL-Driver Authors. All rights reserved.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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//go:build !go1.19
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// +build !go1.19
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package mysql
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import "sync/atomic"
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/******************************************************************************
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* Sync utils *
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******************************************************************************/
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// atomicBool is an implementation of atomic.Bool for older version of Go.
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// it is a wrapper around uint32 for usage as a boolean value with
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// atomic access.
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type atomicBool struct {
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_ noCopy
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value uint32
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}
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// Load returns whether the current boolean value is true
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func (ab *atomicBool) Load() bool {
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return atomic.LoadUint32(&ab.value) > 0
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}
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// Store sets the value of the bool regardless of the previous value
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func (ab *atomicBool) Store(value bool) {
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if value {
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atomic.StoreUint32(&ab.value, 1)
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} else {
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atomic.StoreUint32(&ab.value, 0)
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}
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}
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// Swap sets the value of the bool and returns the old value.
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func (ab *atomicBool) Swap(value bool) bool {
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if value {
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return atomic.SwapUint32(&ab.value, 1) > 0
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}
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return atomic.SwapUint32(&ab.value, 0) > 0
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}
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