Index: storage/browser/blob/blob_slice.h |
diff --git a/storage/browser/blob/blob_slice.h b/storage/browser/blob/blob_slice.h |
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+++ b/storage/browser/blob/blob_slice.h |
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+// Copyright 2016 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef STORAGE_BROWSER_BLOB_BLOB_SLICE_H_ |
+#define STORAGE_BROWSER_BLOB_BLOB_SLICE_H_ |
+ |
+#include <stddef.h> |
+#include <stdint.h> |
+ |
+#include <string> |
+#include <vector> |
+ |
+#include "base/macros.h" |
+#include "base/memory/ref_counted.h" |
+#include "storage/browser/storage_browser_export.h" |
+ |
+namespace storage { |
+class InternalBlobData; |
+class ShareableBlobDataItem; |
+ |
+// Here we try to handle the cases where the slice partially intersects with |
+// either a data item (which we want to copy instead of share when it's partial |
+// intersection) or a 'future file item', which isn't populated yet in the |
+// source blob so we need to copy it over later when it's completed. |
kinuko
2016/07/17 16:15:47
Is this used only in BlobFlattener other than in i
dmurph
2016/07/19 02:26:28
If you're ok with having 5 output arguments then s
michaeln
2016/08/15 22:44:42
I feel similarly about "BlobFlatterner". The addit
|
+struct STORAGE_EXPORT BlobSlice { |
+ BlobSlice(const InternalBlobData& source, |
+ uint64_t slice_offset, |
+ uint64_t slice_size); |
+ ~BlobSlice(); |
+ |
+ // The is the amount of memory we'll be copying from the source blob, as we |
+ // can't share a partial data item. This can happen on the first and/or last |
+ // item our slice is intersecting. |
+ size_t copying_memory_size = 0; |
+ |
+ size_t first_item_slice_offset = 0; |
+ // Populated if our first slice item is a temporary item that we'll copy to |
+ // later from this |first_source_item|, at offset |first_item_slice_offset|. |
+ scoped_refptr<ShareableBlobDataItem> first_source_item; |
+ // Populated if our last slice item is a temporary item that we'll copy to |
+ // later from this |last_source_item|. |
+ scoped_refptr<ShareableBlobDataItem> last_source_item; |
+ |
+ std::vector<scoped_refptr<ShareableBlobDataItem>> dest_items; |
+}; |
+ |
+} // namespace storage |
+#endif // STORAGE_BROWSER_BLOB_BLOB_SLICE_H_ |