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- // Copyright (c) 2019 The Jaeger 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 jaeger
- import "sync"
- // SpanAllocator abstraction of managing span allocations
- type SpanAllocator interface {
- Get() *Span
- Put(*Span)
- }
- type syncPollSpanAllocator struct {
- spanPool sync.Pool
- }
- func newSyncPollSpanAllocator() SpanAllocator {
- return &syncPollSpanAllocator{
- spanPool: sync.Pool{New: func() interface{} {
- return &Span{}
- }},
- }
- }
- func (pool *syncPollSpanAllocator) Get() *Span {
- return pool.spanPool.Get().(*Span)
- }
- func (pool *syncPollSpanAllocator) Put(span *Span) {
- span.reset()
- pool.spanPool.Put(span)
- }
- type simpleSpanAllocator struct{}
- func (pool simpleSpanAllocator) Get() *Span {
- return &Span{}
- }
- func (pool simpleSpanAllocator) Put(span *Span) {
- // @comment https://github.com/jaegertracing/jaeger-client-go/pull/381#issuecomment-475904351
- // since finished spans are not reused, no need to reset them
- // span.reset()
- }
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