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// Copyright 2014 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.
#include "components/cronet/android/wrapped_channel_upload_element_reader.h"
#include "base/android/jni_android.h"
#include "base/logging.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
namespace cronet {
WrappedChannelElementReader::WrappedChannelElementReader(
scoped_refptr<URLRequestAdapter::URLRequestAdapterDelegate> delegate,
uint64 length)
: length_(length), offset_(0), delegate_(delegate) {
}
WrappedChannelElementReader::~WrappedChannelElementReader() {
}
int WrappedChannelElementReader::Init(const net::CompletionCallback& callback) {
if (offset_ != 0)
return net::ERR_UPLOAD_STREAM_REWIND_NOT_SUPPORTED;
return net::OK;
}
uint64 WrappedChannelElementReader::GetContentLength() const {
return length_;
}
uint64 WrappedChannelElementReader::BytesRemaining() const {
return length_ - offset_;
}
bool WrappedChannelElementReader::IsInMemory() const {
return false;
}
int WrappedChannelElementReader::Read(net::IOBuffer* buf,
int buf_length,
const net::CompletionCallback& callback) {
DCHECK(!callback.is_null());
DCHECK(delegate_.get());
// TODO(mef): Post the read to file thread.
int bytes_read = delegate_->ReadFromUploadChannel(buf, buf_length);
if (bytes_read < 0)
return net::ERR_FAILED;
offset_ += bytes_read;
return bytes_read;
}
} // namespace cronet
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