/
buffer_appengine.go
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/
buffer_appengine.go
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// +build appengine
/*
*
* Copyright 2019 gRPC authors.
*
* 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 buffer
// CircularBuffer is a no-op implementation for appengine builds.
//
// Appengine does not support stats because of lack of the support for unsafe
// pointers, which are necessary to efficiently store and retrieve things into
// and from a circular buffer. As a result, Push does not do anything and Drain
// returns an empty slice.
type CircularBuffer struct{}
// NewCircularBuffer returns a no-op for appengine builds.
func NewCircularBuffer(size uint32) (*CircularBuffer, error) {
return nil, nil
}
// Push returns a no-op for appengine builds.
func (cb *CircularBuffer) Push(x interface{}) {
}
// Drain returns a no-op for appengine builds.
func (cb *CircularBuffer) Drain() []interface{} {
return nil
}