blob: 70259060f8f352fde2f513fa97a5cd428457d20f [file] [log] [blame]
// Copyright (c) 2012 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/quic/quic_reliable_client_stream.h"
#include "base/callback_helpers.h"
#include "net/base/net_errors.h"
#include "net/quic/quic_spdy_session.h"
#include "net/quic/quic_write_blocked_list.h"
namespace net {
QuicReliableClientStream::QuicReliableClientStream(QuicStreamId id,
QuicSpdySession* session,
const BoundNetLog& net_log)
: QuicDataStream(id, session), net_log_(net_log), delegate_(nullptr) {
}
QuicReliableClientStream::~QuicReliableClientStream() {
if (delegate_)
delegate_->OnClose(connection_error());
}
void QuicReliableClientStream::OnStreamHeadersComplete(bool fin,
size_t frame_len) {
QuicDataStream::OnStreamHeadersComplete(fin, frame_len);
if (delegate_) {
delegate_->OnHeadersAvailable(decompressed_headers());
MarkHeadersConsumed(decompressed_headers().length());
}
}
uint32 QuicReliableClientStream::ProcessData(const char* data,
uint32 data_len) {
// TODO(rch): buffer data if we don't have a delegate.
if (!delegate_) {
DLOG(ERROR) << "Missing delegate";
Reset(QUIC_STREAM_CANCELLED);
return 0;
}
if (!FinishedReadingHeaders()) {
// Buffer the data in the sequencer until the headers have been read.
return 0;
}
int rv = delegate_->OnDataReceived(data, data_len);
if (rv != OK) {
DLOG(ERROR) << "Delegate refused data, rv: " << rv;
Reset(QUIC_BAD_APPLICATION_PAYLOAD);
return 0;
}
return data_len;
}
void QuicReliableClientStream::OnClose() {
if (delegate_) {
delegate_->OnClose(connection_error());
delegate_ = nullptr;
}
ReliableQuicStream::OnClose();
}
void QuicReliableClientStream::OnCanWrite() {
ReliableQuicStream::OnCanWrite();
if (!HasBufferedData() && !callback_.is_null()) {
base::ResetAndReturn(&callback_).Run(OK);
}
}
QuicPriority QuicReliableClientStream::EffectivePriority() const {
if (delegate_ && delegate_->HasSendHeadersComplete()) {
return QuicDataStream::EffectivePriority();
}
return QuicWriteBlockedList::kHighestPriority;
}
int QuicReliableClientStream::WriteStreamData(
base::StringPiece data,
bool fin,
const CompletionCallback& callback) {
// We should not have data buffered.
DCHECK(!HasBufferedData());
// Writes the data, or buffers it.
WriteOrBufferData(data, fin, nullptr);
if (!HasBufferedData()) {
return OK;
}
callback_ = callback;
return ERR_IO_PENDING;
}
void QuicReliableClientStream::SetDelegate(
QuicReliableClientStream::Delegate* delegate) {
DCHECK(!(delegate_ && delegate));
delegate_ = delegate;
}
void QuicReliableClientStream::OnError(int error) {
if (delegate_) {
QuicReliableClientStream::Delegate* delegate = delegate_;
delegate_ = nullptr;
delegate->OnError(error);
}
}
bool QuicReliableClientStream::CanWrite(const CompletionCallback& callback) {
bool can_write = session()->connection()->CanWrite(HAS_RETRANSMITTABLE_DATA);
if (!can_write) {
session()->MarkConnectionLevelWriteBlocked(id(), EffectivePriority());
DCHECK(callback_.is_null());
callback_ = callback;
}
return can_write;
}
} // namespace net