github.com/m3db/m3@v1.5.0/src/dbnode/storage/repair/metadata_pool.go (about)

     1  // Copyright (c) 2016 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 repair
    22  
    23  import (
    24  	"github.com/m3db/m3/src/dbnode/storage/block"
    25  	"github.com/m3db/m3/src/x/pool"
    26  )
    27  
    28  type replicaMetadataSlicePool struct {
    29  	pool     pool.ObjectPool
    30  	capacity int
    31  }
    32  
    33  // NewReplicaMetadataSlicePool creates a new replicaMetadataSlicePool pool
    34  func NewReplicaMetadataSlicePool(opts pool.ObjectPoolOptions, capacity int) ReplicaMetadataSlicePool {
    35  	p := &replicaMetadataSlicePool{pool: pool.NewObjectPool(opts), capacity: capacity}
    36  	p.pool.Init(func() interface{} {
    37  		metadata := make([]block.ReplicaMetadata, 0, capacity)
    38  		return newPooledReplicaMetadataSlice(metadata, p)
    39  	})
    40  	return p
    41  }
    42  
    43  func (p *replicaMetadataSlicePool) Get() ReplicaMetadataSlice {
    44  	return p.pool.Get().(ReplicaMetadataSlice)
    45  }
    46  
    47  func (p *replicaMetadataSlicePool) Put(res ReplicaMetadataSlice) {
    48  	res.Reset()
    49  	p.pool.Put(res)
    50  }