Update To 11.40.268.0
[platform/framework/web/crosswalk.git] / src / components / cronet / android / wrapped_channel_upload_element_reader.cc
1 // Copyright 2014 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 "components/cronet/android/wrapped_channel_upload_element_reader.h"
6
7 #include "base/android/jni_android.h"
8 #include "base/logging.h"
9 #include "net/base/io_buffer.h"
10 #include "net/base/net_errors.h"
11
12 namespace cronet {
13
14 WrappedChannelElementReader::WrappedChannelElementReader(
15     scoped_refptr<URLRequestAdapter::URLRequestAdapterDelegate> delegate,
16     uint64 length)
17     : length_(length), offset_(0), delegate_(delegate) {
18 }
19
20 WrappedChannelElementReader::~WrappedChannelElementReader() {
21 }
22
23 int WrappedChannelElementReader::Init(const net::CompletionCallback& callback) {
24   if (offset_ != 0)
25     return net::ERR_UPLOAD_STREAM_REWIND_NOT_SUPPORTED;
26   return net::OK;
27 }
28
29 uint64 WrappedChannelElementReader::GetContentLength() const {
30   return length_;
31 }
32
33 uint64 WrappedChannelElementReader::BytesRemaining() const {
34   return length_ - offset_;
35 }
36
37 bool WrappedChannelElementReader::IsInMemory() const {
38   return false;
39 }
40
41 int WrappedChannelElementReader::Read(net::IOBuffer* buf,
42                                       int buf_length,
43                                       const net::CompletionCallback& callback) {
44   DCHECK(!callback.is_null());
45   DCHECK(delegate_.get());
46   // TODO(mef): Post the read to file thread.
47   int bytes_read = delegate_->ReadFromUploadChannel(buf, buf_length);
48   if (bytes_read < 0)
49     return net::ERR_FAILED;
50   offset_ += bytes_read;
51   return bytes_read;
52 }
53
54 }  // namespace cronet
55