mirror of https://github.com/tikv/client-go.git
64 lines
2.0 KiB
Go
64 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/util/failpoint.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 util
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import (
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"errors"
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"github.com/pingcap/failpoint"
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)
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const failpointPrefix = "tikvclient/"
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var (
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failpointsEnabled bool
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errDisabled = errors.New("failpoints are disabled")
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)
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// EnableFailpoints enables use of failpoints.
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// It should be called before using client to avoid data race.
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func EnableFailpoints() {
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failpointsEnabled = true
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}
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// EvalFailpoint injects code for testing. It is used to replace `failpoint.Inject`
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// to make it possible to be used in a library.
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func EvalFailpoint(name string) (interface{}, error) {
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if !failpointsEnabled {
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return nil, errDisabled
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}
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return failpoint.Eval(failpointPrefix + name)
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}
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