| // Copyright 2018 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 CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_STREAM_BLOB_H_ |
| #define CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_STREAM_BLOB_H_ |
| |
| #include "base/callback.h" |
| #include "base/containers/queue.h" |
| #include "base/memory/scoped_refptr.h" |
| #include "content/browser/devtools/devtools_io_context.h" |
| #include "net/base/net_errors.h" |
| #include "storage/common/blob_storage/blob_storage_constants.h" |
| |
| #include <memory> |
| |
| namespace net { |
| class IOBufferWithSize; |
| } |
| |
| namespace storage { |
| class BlobDataHandle; |
| class BlobReader; |
| } // namespace storage |
| |
| namespace content { |
| class ChromeBlobStorageContext; |
| class StoragePartition; |
| |
| class DevToolsStreamBlob : public DevToolsIOContext::Stream { |
| public: |
| using OpenCallback = base::OnceCallback<void(bool)>; |
| |
| static scoped_refptr<DevToolsIOContext::Stream> Create( |
| DevToolsIOContext* io_context, |
| ChromeBlobStorageContext* blob_context, |
| StoragePartition* partition, |
| const std::string& handle, |
| const std::string& uuid); |
| |
| private: |
| DevToolsStreamBlob(); |
| |
| void Open(scoped_refptr<ChromeBlobStorageContext> context, |
| StoragePartition* partition, |
| const std::string& handle, |
| OpenCallback callback); |
| |
| void Read(off_t position, size_t max_size, ReadCallback callback) override; |
| |
| struct ReadRequest { |
| off_t position; |
| size_t max_size; |
| ReadCallback callback; |
| |
| void Fail(); |
| |
| ReadRequest() = delete; |
| ReadRequest(off_t position, size_t max_size, ReadCallback callback); |
| ~ReadRequest(); |
| }; |
| |
| ~DevToolsStreamBlob() override; |
| |
| void OpenOnIO(scoped_refptr<ChromeBlobStorageContext> blob_context, |
| const std::string& uuid, |
| OpenCallback callback); |
| void ReadOnIO(std::unique_ptr<ReadRequest> request); |
| void CloseOnIO(bool invoke_pending_callbacks); |
| |
| void FailOnIO(); |
| void FailOnIO(OpenCallback callback); |
| |
| void StartReadRequest(); |
| void CreateReader(); |
| void BeginRead(); |
| |
| void OnReadComplete(int bytes_read); |
| void OnBlobConstructionComplete(storage::BlobStatus status); |
| void OnCalculateSizeComplete(int net_error); |
| |
| std::unique_ptr<storage::BlobDataHandle> blob_handle_; |
| OpenCallback open_callback_; |
| std::unique_ptr<storage::BlobReader> blob_reader_; |
| base::queue<std::unique_ptr<ReadRequest>> pending_reads_; |
| scoped_refptr<net::IOBufferWithSize> io_buf_; |
| off_t last_read_pos_; |
| bool failed_; |
| bool is_binary_; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_DEVTOOLS_DEVTOOLS_STREAM_BLOB_H_ |