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