github.com/uber-go/tally/v4@v4.1.17/m3/resource_pool.go (about)

     1  // Copyright (c) 2021 Uber Technologies, Inc.
     2  //
     3  // Permission is hereby granted, free of charge, to any person obtaining a copy
     4  // of this software and associated documentation files (the "Software"), to deal
     5  // in the Software without restriction, including without limitation the rights
     6  // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
     7  // copies of the Software, and to permit persons to whom the Software is
     8  // furnished to do so, subject to the following conditions:
     9  //
    10  // The above copyright notice and this permission notice shall be included in
    11  // all copies or substantial portions of the Software.
    12  //
    13  // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    14  // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    15  // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    16  // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    17  // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    18  // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    19  // THE SOFTWARE.
    20  
    21  package m3
    22  
    23  import (
    24  	tally "github.com/uber-go/tally/v4"
    25  	customtransport "github.com/uber-go/tally/v4/m3/customtransports"
    26  	m3thrift "github.com/uber-go/tally/v4/m3/thrift/v2"
    27  	"github.com/uber-go/tally/v4/thirdparty/github.com/apache/thrift/lib/go/thrift"
    28  )
    29  
    30  const (
    31  	batchPoolSize  = 10
    32  	metricPoolSize = DefaultMaxQueueSize
    33  	protoPoolSize  = 10
    34  )
    35  
    36  type resourcePool struct {
    37  	metricSlicePool    *tally.ObjectPool
    38  	metricTagSlicePool *tally.ObjectPool
    39  	protoPool          *tally.ObjectPool
    40  }
    41  
    42  func newResourcePool(protoFac thrift.TProtocolFactory) *resourcePool {
    43  	metricSlicePool := tally.NewObjectPool(batchPoolSize)
    44  	metricSlicePool.Init(func() interface{} {
    45  		return make([]m3thrift.Metric, 0, batchPoolSize)
    46  	})
    47  
    48  	metricTagSlicePool := tally.NewObjectPool(DefaultMaxQueueSize)
    49  	metricTagSlicePool.Init(func() interface{} {
    50  		return make([]m3thrift.MetricTag, 0, batchPoolSize)
    51  	})
    52  
    53  	protoPool := tally.NewObjectPool(protoPoolSize)
    54  	protoPool.Init(func() interface{} {
    55  		return protoFac.GetProtocol(&customtransport.TCalcTransport{})
    56  	})
    57  
    58  	return &resourcePool{
    59  		metricSlicePool:    metricSlicePool,
    60  		metricTagSlicePool: metricTagSlicePool,
    61  		protoPool:          protoPool,
    62  	}
    63  }
    64  
    65  func (r *resourcePool) getMetricSlice() []m3thrift.Metric {
    66  	return r.metricSlicePool.Get().([]m3thrift.Metric)
    67  }
    68  
    69  func (r *resourcePool) getMetricTagSlice() []m3thrift.MetricTag {
    70  	return r.metricTagSlicePool.Get().([]m3thrift.MetricTag)
    71  }
    72  
    73  func (r *resourcePool) getProto() thrift.TProtocol {
    74  	o := r.protoPool.Get()
    75  	return o.(thrift.TProtocol)
    76  }
    77  
    78  //nolint:unused
    79  func (r *resourcePool) releaseProto(proto thrift.TProtocol) {
    80  	calc := proto.Transport().(*customtransport.TCalcTransport)
    81  	calc.ResetCount()
    82  	r.protoPool.Put(proto)
    83  }
    84  
    85  func (r *resourcePool) releaseMetricSlice(metrics []m3thrift.Metric) {
    86  	for i := 0; i < len(metrics); i++ {
    87  		metrics[i].Tags = nil
    88  	}
    89  
    90  	r.metricSlicePool.Put(metrics[:0])
    91  }
    92  
    93  //nolint:unused
    94  func (r *resourcePool) releaseMetricTagSlice(tags []m3thrift.MetricTag) {
    95  	r.metricSlicePool.Put(tags[:0])
    96  }