blob: 45e6e95ccbc30e8652bf6e1a6b5678084de78b59 [file] [log] [blame]
// Copyright (c) 2016 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/quiche/src/quic/core/quic_versions.h"
#include "net/third_party/quiche/src/quic/platform/api/quic_export.h"
namespace quic {
// Used to generate filtered supported versions based on flags.
class QUIC_EXPORT_PRIVATE QuicVersionManager {
// |supported_versions| should be sorted in the order of preference (typically
// highest supported version to the lowest supported version).
explicit QuicVersionManager(ParsedQuicVersionVector supported_versions);
virtual ~QuicVersionManager();
// Returns currently supported QUIC versions.
// TODO(nharper): Remove this method once it is unused.
const QuicTransportVersionVector& GetSupportedTransportVersions();
// Returns currently supported QUIC versions. This vector has the same order
// as the versions passed to the constructor.
const ParsedQuicVersionVector& GetSupportedVersions();
// If the value of any reloadable flag is different from the cached value,
// re-filter |filtered_supported_versions_| and update the cached flag values.
// Otherwise, does nothing.
void MaybeRefilterSupportedVersions();
// Refilters filtered_supported_versions_.
virtual void RefilterSupportedVersions();
const QuicTransportVersionVector& filtered_transport_versions() const {
return filtered_transport_versions_;
// Cached value of reloadable flags.
// quic_enable_version_99 flag
bool enable_version_99_;
// quic_enable_version_50 flag
bool enable_version_50_;
// quic_enable_version_49 flag
bool enable_version_49_;
// quic_enable_version_48_2 flag
bool enable_version_48_;
// quic_supports_tls_handshake flag
bool enable_tls_;
// The list of versions that may be supported.
ParsedQuicVersionVector allowed_supported_versions_;
// This vector contains QUIC versions which are currently supported based on
// flags.
ParsedQuicVersionVector filtered_supported_versions_;
// This vector contains the transport versions from
// |filtered_supported_versions_|. No guarantees are made that the same
// transport version isn't repeated.
QuicTransportVersionVector filtered_transport_versions_;
} // namespace quic