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| 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #include "storage/browser/blob/upload_blob_element_reader.h" |
| 6 |
| 7 #include "net/base/net_errors.h" |
| 8 #include "storage/browser/blob/blob_data_handle.h" |
| 9 #include "storage/browser/blob/blob_reader.h" |
| 10 |
| 11 namespace storage { |
| 12 |
| 13 UploadBlobElementReader::UploadBlobElementReader( |
| 14 scoped_ptr<storage::BlobReader> reader, |
| 15 scoped_ptr<BlobDataHandle> handle) |
| 16 : reader_(reader.Pass()), handle_(handle.Pass()) {} |
| 17 |
| 18 UploadBlobElementReader::~UploadBlobElementReader() {} |
| 19 |
| 20 int UploadBlobElementReader::Init(const net::CompletionCallback& callback) { |
| 21 BlobReader::Status status = reader_->CalculateSize(callback); |
| 22 switch (status) { |
| 23 case BlobReader::Status::NET_ERROR: |
| 24 return reader_->net_error(); |
| 25 case BlobReader::Status::IO_PENDING: |
| 26 return net::ERR_IO_PENDING; |
| 27 case BlobReader::Status::DONE: |
| 28 return net::OK; |
| 29 } |
| 30 NOTREACHED(); |
| 31 return net::ERR_FAILED; |
| 32 } |
| 33 |
| 34 uint64_t UploadBlobElementReader::GetContentLength() const { |
| 35 return reader_->total_size(); |
| 36 } |
| 37 |
| 38 uint64_t UploadBlobElementReader::BytesRemaining() const { |
| 39 return reader_->remaining_bytes(); |
| 40 } |
| 41 |
| 42 bool UploadBlobElementReader::IsInMemory() const { |
| 43 return reader_->IsInMemory(); |
| 44 } |
| 45 |
| 46 int UploadBlobElementReader::Read(net::IOBuffer* buf, |
| 47 int buf_length, |
| 48 const net::CompletionCallback& callback) { |
| 49 int length = 0; |
| 50 BlobReader::Status status = reader_->Read(buf, buf_length, &length, callback); |
| 51 switch (status) { |
| 52 case BlobReader::Status::NET_ERROR: |
| 53 return reader_->net_error(); |
| 54 case BlobReader::Status::IO_PENDING: |
| 55 return net::ERR_IO_PENDING; |
| 56 case BlobReader::Status::DONE: |
| 57 return length; |
| 58 } |
| 59 NOTREACHED(); |
| 60 return net::ERR_FAILED; |
| 61 } |
| 62 |
| 63 const std::string& UploadBlobElementReader::uuid() const { |
| 64 return handle_->uuid(); |
| 65 } |
| 66 |
| 67 } // namespace storage |
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