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42 lines
1.0 KiB
42 lines
1.0 KiB
// Copyright 2019 fatedier, fatedier@gmail.com |
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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 xlog |
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import ( |
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"context" |
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) |
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type key int |
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const ( |
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xlogKey key = 0 |
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) |
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func NewContext(ctx context.Context, xl *Logger) context.Context { |
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return context.WithValue(ctx, xlogKey, xl) |
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} |
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func FromContext(ctx context.Context) (xl *Logger, ok bool) { |
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xl, ok = ctx.Value(xlogKey).(*Logger) |
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return |
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} |
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func FromContextSafe(ctx context.Context) *Logger { |
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xl, ok := ctx.Value(xlogKey).(*Logger) |
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if !ok { |
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xl = New() |
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} |
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return xl |
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}
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