net/quic/quic_flags.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "net/quic/quic_flags.h"
   6
   7 // TODO(rtenneti): Remove this.
   8 // Do not flip this flag until the flakiness of the
   9 // net/tools/quic/end_to_end_test is fixed.
  10 // If true, then QUIC connections will track the retransmission history of a
  11 // packet so that an ack of a previous transmission will ack the data of all
  12 // other transmissions.
  13 bool FLAGS_track_retransmission_history = false;
  14
  15 bool FLAGS_quic_allow_oversized_packets_for_test = false;
  16
  17 // When true, the use time based loss detection instead of nack.
  18 bool FLAGS_quic_use_time_loss_detection = false;
  19
  20 // If true, it will return as soon as an error is detected while validating
  21 // CHLO.
  22 bool FLAGS_use_early_return_when_verifying_chlo = true;
  23
  24 // If true, QUIC crypto reject message will include the reasons for rejection.
  25 bool FLAGS_send_quic_crypto_reject_reason = false;
  26
  27 // If true, QUIC connections will support FEC protection of data while sending
  28 // packets, to reduce latency of data delivery to the application. The client
  29 // must also request FEC protection for the server to use FEC.
  30 bool FLAGS_enable_quic_fec = false;
  31
  32 // When true, defaults to BBR congestion control instead of Cubic.
  33 bool FLAGS_quic_use_bbr_congestion_control = false;
  34
  35 // If true, QUIC BBR congestion control may be enabled via Finch and/or via QUIC
  36 // connection options.
  37 bool FLAGS_quic_allow_bbr = false;
  38
  39 // If true, truncate QUIC connection IDs if the client requests it.
  40 bool FLAGS_allow_truncated_connection_ids_for_quic = false;
  41
  42 // Do not flip this flag.  jokulik plans more testing and additional monitoring
  43 // before the flag can go the auto-flip process.
  44 //
  45 // If true, record the timestamp for the last sent new packet before the call to
  46 // WritePacket, rather than after in QUIC.
  47 bool FLAGS_quic_record_send_time_before_write = false;
  48
  49 // If true, enables the QUIC bandwidth resumption experiment (triggered by
  50 // Chrome/Finch).
  51 bool FLAGS_quic_enable_bandwidth_resumption_experiment = true;
  52
  53 // If true, QUIC congestion control will be paced.  If false, pacing may be
  54 // controlled by QUIC connection options in the config or by enabling BBR
  55 // congestion control.
  56 bool FLAGS_quic_enable_pacing = false;
  57
  58 // If true, the silent close option will be honored.
  59 bool FLAGS_quic_allow_silent_close = true;
  60
  61 // If true, use std::cbrt instead of custom cube root.
  62 bool FLAGS_quic_use_std_cbrt = true;
  63
  64 // If true, the QUIC packet generator will not attempt to queue multiple ACK
  65 // frames.
  66 bool FLAGS_quic_disallow_multiple_pending_ack_frames = true;
  67
  68 // If true, then the source address tokens generated for QUIC connects will
  69 // store multiple addresses.
  70 bool FLAGS_quic_use_multiple_address_in_source_tokens = false;