net/quic/set_quic_flag.cc

   1 // Copyright 2022 The Chromium Authors
   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/set_quic_flag.h"
   6
   7 #include "base/strings/string_number_conversions.h"
   8 #include "net/third_party/quiche/src/quiche/common/platform/api/quiche_flags.h"
   9 #include "net/third_party/quiche/src/quiche/quic/platform/api/quic_flags.h"
  10
  11 namespace net {
  12
  13 namespace {
  14
  15 void SetQuicFlagByName_bool(bool* flag, const std::string& value) {
  16   if (value == "true" || value == "True")
  17     *flag = true;
  18   else if (value == "false" || value == "False")
  19     *flag = false;
  20 }
  21 void SetQuicFlagByName_double(double* flag, const std::string& value) {
  22   double val;
  23   if (base::StringToDouble(value, &val))
  24     *flag = val;
  25 }
  26
  27 void SetQuicFlagByName_uint64_t(uint64_t* flag, const std::string& value) {
  28   uint64_t val;
  29   if (base::StringToUint64(value, &val) && val >= 0)
  30     *flag = val;
  31 }
  32
  33 void SetQuicFlagByName_int32_t(int32_t* flag, const std::string& value) {
  34   int val;
  35   if (base::StringToInt(value, &val))
  36     *flag = val;
  37 }
  38
  39 void SetQuicFlagByName_int64_t(int64_t* flag, const std::string& value) {
  40   int64_t val;
  41   if (base::StringToInt64(value, &val))
  42     *flag = val;
  43 }
  44
  45 }  // namespace
  46
  47 void SetQuicFlagByName(const std::string& flag_name, const std::string& value) {
  48 #define QUIC_FLAG(flag, default_value)            \
  49   if (flag_name == "FLAGS_" #flag) {              \
  50     SetQuicFlagByName_bool(&FLAGS_##flag, value); \
  51     return;                                       \
  52   }
  53 #include "net/third_party/quiche/src/quiche/quic/core/quic_flags_list.h"
  54 #undef QUIC_FLAG
  55
  56 #define QUIC_PROTOCOL_FLAG(type, flag, ...)         \
  57   if (flag_name == "FLAGS_" #flag) {                \
  58     SetQuicFlagByName_##type(&FLAGS_##flag, value); \
  59     return;                                         \
  60   }
  61 #include "net/third_party/quiche/src/quiche/quic/core/quic_protocol_flags_list.h"
  62 #undef QUIC_PROTOCOL_FLAG
  63 }
  64
  65 }  // namespace net