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https://github.com/containerd/containerd.git
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Ayato Tokubi
47c7085d22
Add server-streaming variants of CRI list RPCs (StreamContainers, StreamPodSandboxes, StreamContainerStats, StreamPodSandboxStats, StreamPodSandboxMetrics, StreamImages) that send results in batches of 5000 items. Signed-off-by: Ayato Tokubi <atokubi@redhat.com>
38 lines
1.2 KiB
Go
38 lines
1.2 KiB
Go
/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import "context"
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const DefaultStreamBatchSize = 5000
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// SendInBatches sends items in batches using the provided send function.
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// It checks for context cancellation before sending each batch.
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// Returns nil immediately if items is empty (gRPC closes the stream with EOF).
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func SendInBatches[T any](ctx context.Context, items []*T, batchSize int, sendFn func([]*T) error) error {
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for i := 0; i < len(items); i += batchSize {
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if err := ctx.Err(); err != nil {
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return err
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}
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end := min(i+batchSize, len(items))
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if err := sendFn(items[i:end]); err != nil {
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return err
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}
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}
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return nil
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}
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