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write_attempt.go
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write_attempt.go
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// Copyright (c) 2017 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 (
"time"
xerrors "github.com/m3db/m3x/errors"
"github.com/m3db/m3x/ident"
"github.com/m3db/m3x/pool"
xretry "github.com/m3db/m3x/retry"
xtime "github.com/m3db/m3x/time"
)
type writeAttemptType byte
// nolint
const (
unknownWriteAttemptType writeAttemptType = iota
untaggedWriteAttemptType
taggedWriteAttemptType
)
var writeAttemptArgsZeroed writeAttemptArgs
type writeAttempt struct {
args writeAttemptArgs
session *session
attemptFn xretry.Fn
}
type writeAttemptArgs struct {
namespace ident.ID
id ident.ID
tags ident.TagIterator
t time.Time
value float64
annotation []byte
unit xtime.Unit
attemptType writeAttemptType
}
func (w *writeAttempt) reset() {
w.args = writeAttemptArgsZeroed
}
func (w *writeAttempt) perform() error {
err := w.session.writeAttempt(w.args.attemptType,
w.args.namespace, w.args.id, w.args.tags, w.args.t,
w.args.value, w.args.unit, w.args.annotation)
if IsBadRequestError(err) {
// Do not retry bad request errors
err = xerrors.NewNonRetryableError(err)
}
return err
}
type writeAttemptPool struct {
pool pool.ObjectPool
session *session
}
func newWriteAttemptPool(
session *session,
opts pool.ObjectPoolOptions,
) *writeAttemptPool {
p := pool.NewObjectPool(opts)
return &writeAttemptPool{pool: p, session: session}
}
func (p *writeAttemptPool) Init() {
p.pool.Init(func() interface{} {
w := &writeAttempt{session: p.session}
// NB(r): Bind attemptFn once to avoid creating receiver
// and function method pointer over and over again
w.attemptFn = w.perform
w.reset()
return w
})
}
func (p *writeAttemptPool) Get() *writeAttempt {
return p.pool.Get().(*writeAttempt)
}
func (p *writeAttemptPool) Put(w *writeAttempt) {
w.reset()
p.pool.Put(w)
}