github.com/cs3org/reva/v2@v2.27.7/pkg/storagespace/context.go (about)

     1  // Copyright 2018-2021 CERN
     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  // In applying this license, CERN does not waive the privileges and immunities
    16  // granted to it by virtue of its status as an Intergovernmental Organization
    17  // or submit itself to any jurisdiction.
    18  
    19  package storagespace
    20  
    21  import (
    22  	"context"
    23  
    24  	userpb "github.com/cs3org/go-cs3apis/cs3/identity/user/v1beta1"
    25  )
    26  
    27  type key int
    28  
    29  const (
    30  	sendOwnerChanKey key = iota
    31  )
    32  
    33  // ContextSendSpaceOwnerID stores the space owner in the context.
    34  func ContextSendSpaceOwnerID(ctx context.Context, id *userpb.UserId) {
    35  	ch, ok := ctx.Value(sendOwnerChanKey).(chan<- *userpb.UserId)
    36  	if ok {
    37  		go func() {
    38  			ch <- id
    39  			close(ch)
    40  		}()
    41  	}
    42  }
    43  
    44  // ContextRegisterSendOwnerChan registers a channel to send the current space owner
    45  func ContextRegisterSendOwnerChan(ctx context.Context, ch chan<- *userpb.UserId) context.Context {
    46  	return context.WithValue(ctx, sendOwnerChanKey, ch)
    47  }