naiveproxy/net/third_party/quic/quartc/quartc_stream.cc

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2018-08-15 01:19:20 +03:00
// Copyright (c) 2017 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 "net/third_party/quic/quartc/quartc_stream.h"
#include "net/third_party/quic/platform/api/quic_string_piece.h"
namespace quic {
QuartcStream::QuartcStream(QuicStreamId id, QuicSession* session)
: QuicStream(id, session, /*is_static=*/false) {}
QuartcStream::~QuartcStream() {}
void QuartcStream::OnDataAvailable() {
struct iovec iov;
while (sequencer()->GetReadableRegion(&iov)) {
DCHECK(delegate_);
delegate_->OnReceived(this, reinterpret_cast<const char*>(iov.iov_base),
iov.iov_len);
sequencer()->MarkConsumed(iov.iov_len);
}
// All the data has been received if the sequencer is closed.
// Notify the delegate by calling the callback function one more time with
// iov_len = 0.
if (sequencer()->IsClosed()) {
OnFinRead();
delegate_->OnReceived(this, reinterpret_cast<const char*>(iov.iov_base), 0);
}
}
void QuartcStream::OnClose() {
QuicStream::OnClose();
DCHECK(delegate_);
delegate_->OnClose(this);
}
void QuartcStream::OnStreamDataConsumed(size_t bytes_consumed) {
QuicStream::OnStreamDataConsumed(bytes_consumed);
DCHECK(delegate_);
delegate_->OnBufferChanged(this);
}
void QuartcStream::OnDataBuffered(
QuicStreamOffset offset,
QuicByteCount data_length,
const QuicReferenceCountedPointer<QuicAckListenerInterface>& ack_listener) {
DCHECK(delegate_);
delegate_->OnBufferChanged(this);
}
void QuartcStream::OnCanWrite() {
if (cancel_on_loss_ && HasPendingRetransmission()) {
Reset(QUIC_STREAM_CANCELLED);
return;
}
QuicStream::OnCanWrite();
}
bool QuartcStream::cancel_on_loss() {
return cancel_on_loss_;
}
void QuartcStream::set_cancel_on_loss(bool cancel_on_loss) {
cancel_on_loss_ = cancel_on_loss;
}
void QuartcStream::FinishWriting() {
WriteOrBufferData(QuicStringPiece(nullptr, 0), true, nullptr);
}
void QuartcStream::SetDelegate(Delegate* delegate) {
if (delegate_) {
LOG(WARNING) << "The delegate for Stream " << id()
<< " has already been set.";
}
delegate_ = delegate;
DCHECK(delegate_);
}
} // namespace quic