blob: 10730abc6d1fe0dfcaddce7d2595943c20027b8b [file] [log] [blame]
// 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 "net/tools/quic/quic_simple_server_packet_writer.h"
#include <utility>
#include "base/bind.h"
#include "base/location.h"
#include "base/logging.h"
#include "base/metrics/histogram_functions.h"
#include "net/base/io_buffer.h"
#include "net/base/net_errors.h"
#include "net/quic/address_utils.h"
#include "net/socket/udp_server_socket.h"
#include "net/third_party/quiche/src/quic/core/quic_dispatcher.h"
namespace net {
QuicSimpleServerPacketWriter::QuicSimpleServerPacketWriter(
UDPServerSocket* socket,
quic::QuicDispatcher* dispatcher)
: socket_(socket), dispatcher_(dispatcher), write_blocked_(false) {}
QuicSimpleServerPacketWriter::~QuicSimpleServerPacketWriter() = default;
void QuicSimpleServerPacketWriter::OnWriteComplete(int rv) {
DCHECK_NE(rv, ERR_IO_PENDING);
write_blocked_ = false;
quic::WriteResult result(
rv < 0 ? quic::WRITE_STATUS_ERROR : quic::WRITE_STATUS_OK, rv);
if (!callback_.is_null()) {
std::move(callback_).Run(result);
}
dispatcher_->OnCanWrite();
}
bool QuicSimpleServerPacketWriter::IsWriteBlocked() const {
return write_blocked_;
}
void QuicSimpleServerPacketWriter::SetWritable() {
write_blocked_ = false;
}
quic::WriteResult QuicSimpleServerPacketWriter::WritePacket(
const char* buffer,
size_t buf_len,
const quic::QuicIpAddress& self_address,
const quic::QuicSocketAddress& peer_address,
quic::PerPacketOptions* options) {
scoped_refptr<StringIOBuffer> buf =
base::MakeRefCounted<StringIOBuffer>(std::string(buffer, buf_len));
DCHECK(!IsWriteBlocked());
int rv;
if (buf_len <= static_cast<size_t>(std::numeric_limits<int>::max())) {
rv = socket_->SendTo(
buf.get(), static_cast<int>(buf_len), ToIPEndPoint(peer_address),
base::Bind(&QuicSimpleServerPacketWriter::OnWriteComplete,
weak_factory_.GetWeakPtr()));
} else {
rv = ERR_MSG_TOO_BIG;
}
quic::WriteStatus status = quic::WRITE_STATUS_OK;
if (rv < 0) {
if (rv != ERR_IO_PENDING) {
base::UmaHistogramSparse("Net.quic::QuicSession.WriteError", -rv);
status = quic::WRITE_STATUS_ERROR;
} else {
status = quic::WRITE_STATUS_BLOCKED_DATA_BUFFERED;
write_blocked_ = true;
}
}
return quic::WriteResult(status, rv);
}
quic::QuicByteCount QuicSimpleServerPacketWriter::GetMaxPacketSize(
const quic::QuicSocketAddress& peer_address) const {
return quic::kMaxOutgoingPacketSize;
}
bool QuicSimpleServerPacketWriter::SupportsReleaseTime() const {
return false;
}
bool QuicSimpleServerPacketWriter::IsBatchMode() const {
return false;
}
char* QuicSimpleServerPacketWriter::GetNextWriteLocation(
const quic::QuicIpAddress& self_address,
const quic::QuicSocketAddress& peer_address) {
return nullptr;
}
quic::WriteResult QuicSimpleServerPacketWriter::Flush() {
return quic::WriteResult(quic::WRITE_STATUS_OK, 0);
}
} // namespace net