Delete profiler.h.

webrtc/base/profiler.cc

Index: webrtc/base/profiler.cc
diff --git a/webrtc/base/profiler.cc b/webrtc/base/profiler.cc
deleted file mode 100644
index 873b1989f7c1c88eb843d0ccf2af89e82882a585..0000000000000000000000000000000000000000
--- a/webrtc/base/profiler.cc
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- *  Copyright 2013 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 "webrtc/base/profiler.h"
-
-#include <math.h>
-#include <algorithm>
-
-#include "webrtc/base/timeutils.h"
-
-namespace {
-
-// When written to an ostream, FormattedTime chooses an appropriate scale and
-// suffix for a time value given in seconds.
-class FormattedTime {
- public:
-  explicit FormattedTime(double t) : time_(t) {}
-  double time() const { return time_; }
- private:
-  double time_;
-};
-
-std::ostream& operator<<(std::ostream& stream, const FormattedTime& time) {
-  if (time.time() < 1.0) {
-    stream << (time.time() * 1000.0) << "ms";
-  } else {
-    stream << time.time() << 's';
-  }
-  return stream;
-}
-
-}  // namespace
-
-namespace rtc {
-
-ProfilerEvent::ProfilerEvent()
-    : total_time_(0.0),
-      mean_(0.0),
-      sum_of_squared_differences_(0.0),
-      start_count_(0),
-      event_count_(0) {
-}
-
-void ProfilerEvent::Start() {
-  if (start_count_ == 0) {
-    current_start_time_ = TimeNanos();
-  }
-  ++start_count_;
-}
-
-void ProfilerEvent::Stop(uint64_t stop_time) {
-  --start_count_;
-  ASSERT(start_count_ >= 0);
-  if (start_count_ == 0) {
-    double elapsed = static_cast<double>(stop_time - current_start_time_) /
-        kNumNanosecsPerSec;
-    total_time_ += elapsed;
-    if (event_count_ == 0) {
-      minimum_ = maximum_ = elapsed;
-    } else {
-      minimum_ = std::min(minimum_, elapsed);
-      maximum_ = std::max(maximum_, elapsed);
-    }
-    // Online variance and mean algorithm: http://en.wikipedia.org/wiki/
-    // Algorithms_for_calculating_variance#Online_algorithm
-    ++event_count_;
-    double delta = elapsed - mean_;
-    mean_ = mean_ + delta / event_count_;
-    sum_of_squared_differences_ += delta * (elapsed - mean_);
-  }
-}
-
-void ProfilerEvent::Stop() {
-  Stop(TimeNanos());
-}
-
-double ProfilerEvent::standard_deviation() const {
-    if (event_count_ <= 1) return 0.0;
-    return sqrt(sum_of_squared_differences_ / (event_count_ - 1.0));
-}
-
-Profiler::~Profiler() = default;
-
-Profiler* Profiler::Instance() {
-  RTC_DEFINE_STATIC_LOCAL(Profiler, instance, ());
-  return &instance;
-}
-
-Profiler::Profiler() {
-}
-
-void Profiler::StartEvent(const std::string& event_name) {
-  lock_.LockShared();
-  EventMap::iterator it = events_.find(event_name);
-  bool needs_insert = (it == events_.end());
-  lock_.UnlockShared();
-
-  if (needs_insert) {
-    // Need an exclusive lock to modify the map.
-    ExclusiveScope scope(&lock_);
-    it = events_.insert(
-        EventMap::value_type(event_name, ProfilerEvent())).first;
-  }
-
-  it->second.Start();
-}
-
-void Profiler::StopEvent(const std::string& event_name) {
-  // Get the time ASAP, then wait for the lock.
-  uint64_t stop_time = TimeNanos();
-  SharedScope scope(&lock_);
-  EventMap::iterator it = events_.find(event_name);
-  if (it != events_.end()) {
-    it->second.Stop(stop_time);
-  }
-}
-
-void Profiler::ReportToLog(const char* file, int line,
-                           LoggingSeverity severity_to_use,
-                           const std::string& event_prefix) {
-  if (!LogMessage::Loggable(severity_to_use)) {
-    return;
-  }
-
-  SharedScope scope(&lock_);
-
-  { // Output first line.
-    LogMessage msg(file, line, severity_to_use);
-    msg.stream() << "=== Profile report ";
-    if (event_prefix.empty()) {
-      msg.stream() << "(prefix: '" << event_prefix << "') ";
-    }
-    msg.stream() << "===";
-  }
-  for (EventMap::const_iterator it = events_.begin();
-       it != events_.end(); ++it) {
-    if (event_prefix.empty() || it->first.find(event_prefix) == 0) {
-      LogMessage(file, line, severity_to_use).stream()
-          << it->first << " " << it->second;
-    }
-  }
-  LogMessage(file, line, severity_to_use).stream()
-      << "=== End profile report ===";
-}
-
-void Profiler::ReportAllToLog(const char* file, int line,
-                           LoggingSeverity severity_to_use) {
-  ReportToLog(file, line, severity_to_use, "");
-}
-
-const ProfilerEvent* Profiler::GetEvent(const std::string& event_name) const {
-  SharedScope scope(&lock_);
-  EventMap::const_iterator it =
-      events_.find(event_name);
-  return (it == events_.end()) ? NULL : &it->second;
-}
-
-bool Profiler::Clear() {
-  ExclusiveScope scope(&lock_);
-  bool result = true;
-  // Clear all events that aren't started.
-  EventMap::iterator it = events_.begin();
-  while (it != events_.end()) {
-    if (it->second.is_started()) {
-      ++it;  // Can't clear started events.
-      result = false;
-    } else {
-      events_.erase(it++);
-    }
-  }
-  return result;
-}
-
-std::ostream& operator<<(std::ostream& stream,
-                         const ProfilerEvent& profiler_event) {
-  stream << "count=" << profiler_event.event_count()
-         << " total=" << FormattedTime(profiler_event.total_time())
-         << " mean=" << FormattedTime(profiler_event.mean())
-         << " min=" << FormattedTime(profiler_event.minimum())
-         << " max=" << FormattedTime(profiler_event.maximum())
-         << " sd=" << profiler_event.standard_deviation();
-  return stream;
-}
-
-}  // namespace rtc