storj/satellite/metabase/rangedloop/rangedlooptest/infiniteprovider.go
Erik van Velzen 1d4411f166
satellite/metabase/rangedloop: cancellation (#5364)
Support interruption of the ranged segment loop through context.

Part of https://github.com/storj/storj/issues/5223

Change-Id: Iae0260e250f8ea33affed95c6592a1f42df384eb
2023-01-05 16:32:30 +01:00

37 lines
1.1 KiB
Go

// Copyright (C) 2022 Storj Labs, Inc.
// See LICENSE for copying information.
package rangedlooptest
import (
"context"
"storj.io/storj/satellite/metabase/rangedloop"
"storj.io/storj/satellite/metabase/segmentloop"
)
var _ rangedloop.RangeSplitter = (*InfiniteSegmentProvider)(nil)
var _ rangedloop.SegmentProvider = (*InfiniteSegmentProvider)(nil)
// InfiniteSegmentProvider allow to iterate indefinitely to test service cancellation.
type InfiniteSegmentProvider struct {
}
// CreateRanges splits the segments into equal ranges.
func (m *InfiniteSegmentProvider) CreateRanges(nRanges int, batchSize int) (segmentsProviders []rangedloop.SegmentProvider, err error) {
for i := 0; i < nRanges; i++ {
segmentsProviders = append(segmentsProviders, &InfiniteSegmentProvider{})
}
return segmentsProviders, nil
}
// Iterate allows to loop over the segments stored in the provider.
func (m *InfiniteSegmentProvider) Iterate(ctx context.Context, fn func([]segmentloop.Segment) error) error {
for {
err := fn(make([]segmentloop.Segment, 3))
if err != nil {
return err
}
}
}