/
checked_object.go
77 lines (67 loc) · 2.36 KB
/
checked_object.go
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// Copyright (c) 2016 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 pool
import "github.com/m3db/m3/src/x/checked"
type checkedObjectPool struct {
pool ObjectPool
finalizerPool ObjectPool
}
type checkedObjectFinalizer struct {
value checked.ReadWriteRef
p *checkedObjectPool
}
func (f *checkedObjectFinalizer) Finalize() {
f.p.pool.Put(f.value)
finalizerPool := f.p.finalizerPool
f.value = nil
f.p = nil
finalizerPool.Put(f)
}
// NewCheckedObjectPool creates a new checked pool
func NewCheckedObjectPool(opts ObjectPoolOptions) CheckedObjectPool {
if opts == nil {
opts = NewObjectPoolOptions()
}
return &checkedObjectPool{
pool: NewObjectPool(opts),
finalizerPool: NewObjectPool(opts.SetInstrumentOptions(opts.InstrumentOptions().
SetMetricsScope(opts.InstrumentOptions().
MetricsScope().
SubScope("finalizer-pool")))),
}
}
func (p *checkedObjectPool) Init(alloc CheckedAllocator) {
p.pool.Init(func() interface{} {
v := alloc()
v.TrackObject(v)
return v
})
p.finalizerPool.Init(func() interface{} {
return &checkedObjectFinalizer{}
})
}
func (p *checkedObjectPool) Get() checked.ReadWriteRef {
value := p.pool.Get().(checked.ReadWriteRef)
finalizer := p.finalizerPool.Get().(*checkedObjectFinalizer)
finalizer.value = value
finalizer.p = p
value.SetFinalizer(finalizer)
return value
}