go.chromium.org/luci@v0.0.0-20240309015107-7cdc2e660f33/logdog/appengine/coordinator/flex/context.go (about)

     1  // Copyright 2017 The LUCI Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package flex
    16  
    17  import "context"
    18  
    19  var servicesKey = "LogDog AppEngine Flex Services"
    20  
    21  // WithServices installs the supplied Services instance into a Context.
    22  func WithServices(c context.Context, s Services) context.Context {
    23  	return context.WithValue(c, &servicesKey, s)
    24  }
    25  
    26  // GetServices gets the Services instance installed in the supplied Context.
    27  //
    28  // If no Services has been installed, it will panic.
    29  func GetServices(c context.Context) Services { return c.Value(&servicesKey).(Services) }