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aggregate_op.go
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aggregate_op.go
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// Copyright (c) 2019 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 client
import (
"github.com/m3db/m3/src/dbnode/generated/thrift/rpc"
"github.com/m3db/m3/src/x/pool"
)
var (
aggregateOpRequestZeroed = rpc.AggregateQueryRawRequest{}
)
type aggregateOp struct {
refCounter
request rpc.AggregateQueryRawRequest
completionFn completionFn
pool aggregateOpPool
}
func (f *aggregateOp) Size() int { return 1 }
func (f *aggregateOp) CompletionFn() completionFn { return f.completionFn }
func (f *aggregateOp) update(req rpc.AggregateQueryRawRequest, fn completionFn) {
f.request = req
f.completionFn = fn
}
func (f *aggregateOp) requestLimit(defaultValue int) int {
if f.request.Limit == nil {
return defaultValue
}
return int(*f.request.Limit)
}
func (f *aggregateOp) close() {
f.completionFn = nil
f.request = aggregateOpRequestZeroed
// return to pool
if f.pool == nil {
return
}
f.pool.Put(f)
}
func newAggregateOp(p aggregateOpPool) *aggregateOp {
f := &aggregateOp{pool: p}
f.destructorFn = f.close
return f
}
type aggregateOpPool interface {
Init()
Get() *aggregateOp
Put(*aggregateOp)
}
type aggregateOpPoolImpl struct {
pool pool.ObjectPool
}
func newAggregateOpPool(
opts pool.ObjectPoolOptions,
) aggregateOpPool {
p := pool.NewObjectPool(opts)
return &aggregateOpPoolImpl{pool: p}
}
func (p *aggregateOpPoolImpl) Init() {
p.pool.Init(func() interface{} {
return newAggregateOp(p)
})
}
func (p *aggregateOpPoolImpl) Get() *aggregateOp {
return p.pool.Get().(*aggregateOp)
}
func (p *aggregateOpPoolImpl) Put(f *aggregateOp) {
p.pool.Put(f)
}