c1213bd00c
* swarm/shed: remove metrics fields from DB struct * swarm/schunk: add String methods to modes * swarm/storage/localstore: add metrics and traces * swarm/chunk: unknown modes without spaces in String methods * swarm/storage/localstore: remove bin number from pull subscription metrics * swarm/storage/localstore: add resetting time metrics and code improvements
46 lines
1.5 KiB
Go
46 lines
1.5 KiB
Go
// Copyright 2019 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package localstore
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import (
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"context"
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"time"
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"github.com/ethereum/go-ethereum/metrics"
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"github.com/ethereum/go-ethereum/swarm/chunk"
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"github.com/ethereum/go-ethereum/swarm/spancontext"
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olog "github.com/opentracing/opentracing-go/log"
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)
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// Has returns true if the chunk is stored in database.
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func (db *DB) Has(ctx context.Context, addr chunk.Address) (bool, error) {
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metricName := "localstore.Has"
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ctx, sp := spancontext.StartSpan(ctx, metricName)
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defer sp.Finish()
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sp.LogFields(olog.String("ref", addr.String()))
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metrics.GetOrRegisterCounter(metricName, nil).Inc(1)
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defer totalTimeMetric(metricName, time.Now())
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has, err := db.retrievalDataIndex.Has(addressToItem(addr))
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if err != nil {
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metrics.GetOrRegisterCounter(metricName+".error", nil).Inc(1)
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}
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return has, err
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}
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