mirror of https://github.com/perkeep/perkeep.git
51 lines
1.2 KiB
Go
51 lines
1.2 KiB
Go
/*
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Copyright 2014 The Camlistore 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 azure
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import (
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"fmt"
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"os"
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"camlistore.org/pkg/blob"
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"go4.org/syncutil"
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)
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var statGate = syncutil.NewGate(20) // arbitrary
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func (sto *azureStorage) StatBlobs(dest chan<- blob.SizedRef, blobs []blob.Ref) (err error) {
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// TODO: use sto.cache
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var wg syncutil.Group
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for _, br := range blobs {
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br := br
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statGate.Start()
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wg.Go(func() error {
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defer statGate.Done()
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size, err := sto.azureClient.Stat(br.String(), sto.container)
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if err == nil {
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dest <- blob.SizedRef{Ref: br, Size: uint32(size)}
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return nil
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}
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if err == os.ErrNotExist {
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return nil
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}
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return fmt.Errorf("error statting %v: %v", br, err)
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})
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}
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return wg.Err()
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}
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