forked from uber-go/tally
/
resource_pool.go
96 lines (81 loc) · 3.06 KB
/
resource_pool.go
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// Copyright (c) 2021 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package m3
import (
"github.com/uber-go/tally"
customtransport "github.com/uber-go/tally/m3/customtransports"
m3thrift "github.com/uber-go/tally/m3/thrift/v2"
"github.com/uber-go/tally/thirdparty/github.com/apache/thrift/lib/go/thrift"
)
const (
batchPoolSize = 10
metricPoolSize = DefaultMaxQueueSize
protoPoolSize = 10
)
type resourcePool struct {
metricSlicePool *tally.ObjectPool
metricTagSlicePool *tally.ObjectPool
protoPool *tally.ObjectPool
}
func newResourcePool(protoFac thrift.TProtocolFactory) *resourcePool {
metricSlicePool := tally.NewObjectPool(batchPoolSize)
metricSlicePool.Init(func() interface{} {
return make([]m3thrift.Metric, 0, batchPoolSize)
})
metricTagSlicePool := tally.NewObjectPool(DefaultMaxQueueSize)
metricTagSlicePool.Init(func() interface{} {
return make([]m3thrift.MetricTag, 0, batchPoolSize)
})
protoPool := tally.NewObjectPool(protoPoolSize)
protoPool.Init(func() interface{} {
return protoFac.GetProtocol(&customtransport.TCalcTransport{})
})
return &resourcePool{
metricSlicePool: metricSlicePool,
metricTagSlicePool: metricTagSlicePool,
protoPool: protoPool,
}
}
func (r *resourcePool) getMetricSlice() []m3thrift.Metric {
return r.metricSlicePool.Get().([]m3thrift.Metric)
}
func (r *resourcePool) getMetricTagSlice() []m3thrift.MetricTag {
return r.metricTagSlicePool.Get().([]m3thrift.MetricTag)
}
func (r *resourcePool) getProto() thrift.TProtocol {
o := r.protoPool.Get()
return o.(thrift.TProtocol)
}
//nolint:unused
func (r *resourcePool) releaseProto(proto thrift.TProtocol) {
calc := proto.Transport().(*customtransport.TCalcTransport)
calc.ResetCount()
r.protoPool.Put(proto)
}
func (r *resourcePool) releaseMetricSlice(metrics []m3thrift.Metric) {
for i := 0; i < len(metrics); i++ {
metrics[i].Tags = nil
}
r.metricSlicePool.Put(metrics[:0])
}
//nolint:unused
func (r *resourcePool) releaseMetricTagSlice(tags []m3thrift.MetricTag) {
r.metricSlicePool.Put(tags[:0])
}