tidb const 源码
tidb const 代码
文件路径：/plugin/const.go
// Copyright 2019 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package plugin
// Kind presents the kind of plugin.
type Kind uint8
const (
// Audit indicates it is a Audit plugin.
Audit Kind = 1 + iota
// Authentication indicate it is a Authentication plugin.
Authentication
// Schema indicate a plugin that can change TiDB schema.
Schema
// Daemon indicate a plugin that can run as daemon task.
Daemon
)
func (k Kind) String() (str string) {
switch k {
case Audit:
str = "Audit"
case Authentication:
str = "Authentication"
case Schema:
str = "Schema"
case Daemon:
str = "Daemon"
}
return
}
// State present the state of plugin.
type State uint8
const (
// Uninitialized indicates plugin is uninitialized.
Uninitialized State = iota
// Ready indicates plugin is ready to work.
Ready
// Dying indicates plugin will be close soon.
Dying
// Disable indicate plugin is disabled.
Disable
)
func (s State) String() (str string) {
switch s {
case Uninitialized:
str = "Uninitialized"
case Ready:
str = "Ready"
case Dying:
str = "Dying"
case Disable:
str = "Disable"
}
return
}
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