| /* |
| * Copyright 2016 The WebRTC Project Authors. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style license |
| * that can be found in the LICENSE file in the root of the source |
| * tree. An additional intellectual property rights grant can be found |
| * in the file PATENTS. All contributing project authors may |
| * be found in the AUTHORS file in the root of the source tree. |
| */ |
| |
| #include "api/stats/rtc_stats.h" |
| |
| #include <cstdio> |
| |
| #include "rtc_base/arraysize.h" |
| #include "rtc_base/string_encode.h" |
| #include "rtc_base/strings/string_builder.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| // Produces "[a,b,c]". Works for non-vector `RTCStatsMemberInterface::Type` |
| // types. |
| template <typename T> |
| std::string VectorToString(const std::vector<T>& vector) { |
| rtc::StringBuilder sb; |
| sb << "["; |
| const char* separator = ""; |
| for (const T& element : vector) { |
| sb << separator << rtc::ToString(element); |
| separator = ","; |
| } |
| sb << "]"; |
| return sb.Release(); |
| } |
| |
| // This overload is required because std::vector<bool> range loops don't |
| // return references but objects, causing -Wrange-loop-analysis diagnostics. |
| std::string VectorToString(const std::vector<bool>& vector) { |
| rtc::StringBuilder sb; |
| sb << "["; |
| const char* separator = ""; |
| for (bool element : vector) { |
| sb << separator << rtc::ToString(element); |
| separator = ","; |
| } |
| sb << "]"; |
| return sb.Release(); |
| } |
| |
| // Produces "[\"a\",\"b\",\"c\"]". Works for vectors of both const char* and |
| // std::string element types. |
| template <typename T> |
| std::string VectorOfStringsToString(const std::vector<T>& strings) { |
| rtc::StringBuilder sb; |
| sb << "["; |
| const char* separator = ""; |
| for (const T& element : strings) { |
| sb << separator << "\"" << rtc::ToString(element) << "\""; |
| separator = ","; |
| } |
| sb << "]"; |
| return sb.Release(); |
| } |
| |
| template <typename T> |
| std::string MapToString(const std::map<std::string, T>& map) { |
| rtc::StringBuilder sb; |
| sb << "{"; |
| const char* separator = ""; |
| for (const auto& element : map) { |
| sb << separator << rtc::ToString(element.first) << ":" |
| << rtc::ToString(element.second); |
| separator = ","; |
| } |
| sb << "}"; |
| return sb.Release(); |
| } |
| |
| template <typename T> |
| std::string ToStringAsDouble(const T value) { |
| // JSON represents numbers as floating point numbers with about 15 decimal |
| // digits of precision. |
| char buf[32]; |
| const int len = std::snprintf(&buf[0], arraysize(buf), "%.16g", |
| static_cast<double>(value)); |
| RTC_DCHECK_LE(len, arraysize(buf)); |
| return std::string(&buf[0], len); |
| } |
| |
| template <typename T> |
| std::string VectorToStringAsDouble(const std::vector<T>& vector) { |
| rtc::StringBuilder sb; |
| sb << "["; |
| const char* separator = ""; |
| for (const T& element : vector) { |
| sb << separator << ToStringAsDouble<T>(element); |
| separator = ","; |
| } |
| sb << "]"; |
| return sb.Release(); |
| } |
| |
| template <typename T> |
| std::string MapToStringAsDouble(const std::map<std::string, T>& map) { |
| rtc::StringBuilder sb; |
| sb << "{"; |
| const char* separator = ""; |
| for (const auto& element : map) { |
| sb << separator << "\"" << rtc::ToString(element.first) |
| << "\":" << ToStringAsDouble(element.second); |
| separator = ","; |
| } |
| sb << "}"; |
| return sb.Release(); |
| } |
| |
| } // namespace |
| |
| bool RTCStats::operator==(const RTCStats& other) const { |
| if (type() != other.type() || id() != other.id()) |
| return false; |
| std::vector<const RTCStatsMemberInterface*> members = Members(); |
| std::vector<const RTCStatsMemberInterface*> other_members = other.Members(); |
| RTC_DCHECK_EQ(members.size(), other_members.size()); |
| for (size_t i = 0; i < members.size(); ++i) { |
| const RTCStatsMemberInterface* member = members[i]; |
| const RTCStatsMemberInterface* other_member = other_members[i]; |
| RTC_DCHECK_EQ(member->type(), other_member->type()); |
| RTC_DCHECK_EQ(member->name(), other_member->name()); |
| if (*member != *other_member) |
| return false; |
| } |
| return true; |
| } |
| |
| bool RTCStats::operator!=(const RTCStats& other) const { |
| return !(*this == other); |
| } |
| |
| std::string RTCStats::ToJson() const { |
| rtc::StringBuilder sb; |
| sb << "{\"type\":\"" << type() |
| << "\"," |
| "\"id\":\"" |
| << id_ |
| << "\"," |
| "\"timestamp\":" |
| << timestamp_us_; |
| for (const RTCStatsMemberInterface* member : Members()) { |
| if (member->is_defined()) { |
| sb << ",\"" << member->name() << "\":"; |
| if (member->is_string()) |
| sb << "\"" << member->ValueToJson() << "\""; |
| else |
| sb << member->ValueToJson(); |
| } |
| } |
| sb << "}"; |
| return sb.Release(); |
| } |
| |
| std::vector<const RTCStatsMemberInterface*> RTCStats::Members() const { |
| return MembersOfThisObjectAndAncestors(0); |
| } |
| |
| std::vector<const RTCStatsMemberInterface*> |
| RTCStats::MembersOfThisObjectAndAncestors(size_t additional_capacity) const { |
| std::vector<const RTCStatsMemberInterface*> members; |
| members.reserve(additional_capacity); |
| return members; |
| } |
| |
| #define WEBRTC_DEFINE_RTCSTATSMEMBER(T, type, is_seq, is_str, to_str, to_json) \ |
| template <> \ |
| RTCStatsMemberInterface::Type RTCStatsMember<T>::StaticType() { \ |
| return type; \ |
| } \ |
| template <> \ |
| bool RTCStatsMember<T>::is_sequence() const { \ |
| return is_seq; \ |
| } \ |
| template <> \ |
| bool RTCStatsMember<T>::is_string() const { \ |
| return is_str; \ |
| } \ |
| template <> \ |
| std::string RTCStatsMember<T>::ValueToString() const { \ |
| RTC_DCHECK(value_.has_value()); \ |
| return to_str; \ |
| } \ |
| template <> \ |
| std::string RTCStatsMember<T>::ValueToJson() const { \ |
| RTC_DCHECK(value_.has_value()); \ |
| return to_json; \ |
| } \ |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) RTCStatsMember<T> |
| |
| WEBRTC_DEFINE_RTCSTATSMEMBER(bool, |
| kBool, |
| false, |
| false, |
| rtc::ToString(*value_), |
| rtc::ToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(int32_t, |
| kInt32, |
| false, |
| false, |
| rtc::ToString(*value_), |
| rtc::ToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(uint32_t, |
| kUint32, |
| false, |
| false, |
| rtc::ToString(*value_), |
| rtc::ToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(int64_t, |
| kInt64, |
| false, |
| false, |
| rtc::ToString(*value_), |
| ToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(uint64_t, |
| kUint64, |
| false, |
| false, |
| rtc::ToString(*value_), |
| ToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(double, |
| kDouble, |
| false, |
| false, |
| rtc::ToString(*value_), |
| ToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::string, |
| kString, |
| false, |
| true, |
| *value_, |
| *value_); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<bool>, |
| kSequenceBool, |
| true, |
| false, |
| VectorToString(*value_), |
| VectorToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<int32_t>, |
| kSequenceInt32, |
| true, |
| false, |
| VectorToString(*value_), |
| VectorToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<uint32_t>, |
| kSequenceUint32, |
| true, |
| false, |
| VectorToString(*value_), |
| VectorToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<int64_t>, |
| kSequenceInt64, |
| true, |
| false, |
| VectorToString(*value_), |
| VectorToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<uint64_t>, |
| kSequenceUint64, |
| true, |
| false, |
| VectorToString(*value_), |
| VectorToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<double>, |
| kSequenceDouble, |
| true, |
| false, |
| VectorToString(*value_), |
| VectorToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(std::vector<std::string>, |
| kSequenceString, |
| true, |
| false, |
| VectorOfStringsToString(*value_), |
| VectorOfStringsToString(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(rtc_stats_internal::MapStringUint64, |
| kMapStringUint64, |
| false, |
| false, |
| MapToString(*value_), |
| MapToStringAsDouble(*value_)); |
| WEBRTC_DEFINE_RTCSTATSMEMBER(rtc_stats_internal::MapStringDouble, |
| kMapStringDouble, |
| false, |
| false, |
| MapToString(*value_), |
| MapToStringAsDouble(*value_)); |
| |
| // Restricted members that expose hardware capabilites. |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<bool, StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<int32_t, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<uint32_t, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<int64_t, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<uint64_t, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<double, StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::string, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<bool>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<int32_t>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<uint32_t>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<int64_t>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<uint64_t>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<double>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::vector<std::string>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::map<std::string, uint64_t>, |
| StatExposureCriteria::kHardwareCapability>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCRestrictedStatsMember<std::map<std::string, double>, |
| StatExposureCriteria::kHardwareCapability>; |
| |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<bool>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<int32_t>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<uint32_t>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<int64_t>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<uint64_t>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<double>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::string>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<bool>>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<int32_t>>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<uint32_t>>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<int64_t>>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<uint64_t>>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<double>>; |
| template class RTC_EXPORT_TEMPLATE_DEFINE(RTC_EXPORT) |
| RTCNonStandardStatsMember<std::vector<std::string>>; |
| |
| } // namespace webrtc |
