Upstream version 9.38.198.0
[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   offset_ = 0;
25   return net::OK;
26 }
27
28 uint64 WrappedChannelElementReader::GetContentLength() const {
29   return length_;
30 }
31
32 uint64 WrappedChannelElementReader::BytesRemaining() const {
33   return length_ - offset_;
34 }
35
36 bool WrappedChannelElementReader::IsInMemory() const {
37   return false;
38 }
39
40 int WrappedChannelElementReader::Read(net::IOBuffer* buf,
41                                       int buf_length,
42                                       const net::CompletionCallback& callback) {
43   DCHECK(!callback.is_null());
44   DCHECK(delegate_);
45   // TODO(mef): Post the read to file thread.
46   int bytes_read = delegate_->ReadFromUploadChannel(buf, buf_length);
47   if (bytes_read < 0)
48     return net::ERR_FAILED;
49   offset_ += bytes_read;
50   return bytes_read;
51 }
52
53 }  // namespace cronet
54