github.com/m3db/m3@v1.5.0/src/dbnode/x/xio/segment_reader_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 xio
    22  
    23  import (
    24  	"github.com/m3db/m3/src/dbnode/ts"
    25  	"github.com/m3db/m3/src/x/pool"
    26  )
    27  
    28  type segmentReaderPool struct {
    29  	pool pool.ObjectPool
    30  }
    31  
    32  // NewSegmentReaderPool creates a new pool
    33  func NewSegmentReaderPool(opts pool.ObjectPoolOptions) SegmentReaderPool {
    34  	return &segmentReaderPool{pool: pool.NewObjectPool(opts)}
    35  }
    36  
    37  func (p *segmentReaderPool) Init() {
    38  	p.pool.Init(func() interface{} {
    39  		sr := NewSegmentReader(ts.Segment{}).(*segmentReader)
    40  		sr.pool = p
    41  		return sr
    42  	})
    43  }
    44  
    45  func (p *segmentReaderPool) Get() SegmentReader {
    46  	return p.pool.Get().(SegmentReader)
    47  }
    48  
    49  func (p *segmentReaderPool) Put(sr SegmentReader) {
    50  	p.pool.Put(sr)
    51  }