tor-browser

The Tor Browser
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DDLifetimes.cpp (2898B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "DDLifetimes.h"
      8 
      9 #include "DDLogUtils.h"
     10 
     11 namespace mozilla {
     12 
     13 DDLifetime* DDLifetimes::FindLifetime(const DDLogObject& aObject,
     14                                      const DDMessageIndex& aIndex) {
     15  LifetimesForObject* lifetimes = mLifetimes.Get(aObject);
     16  if (lifetimes) {
     17    for (DDLifetime& lifetime : *lifetimes) {
     18      if (lifetime.mObject == aObject && lifetime.IsAliveAt(aIndex)) {
     19        return &lifetime;
     20      }
     21    }
     22  }
     23  return nullptr;
     24 }
     25 
     26 const DDLifetime* DDLifetimes::FindLifetime(
     27    const DDLogObject& aObject, const DDMessageIndex& aIndex) const {
     28  const LifetimesForObject* lifetimes = mLifetimes.Get(aObject);
     29  if (lifetimes) {
     30    for (const DDLifetime& lifetime : *lifetimes) {
     31      if (lifetime.mObject == aObject && lifetime.IsAliveAt(aIndex)) {
     32        return &lifetime;
     33      }
     34    }
     35  }
     36  return nullptr;
     37 }
     38 
     39 DDLifetime& DDLifetimes::CreateLifetime(
     40    const DDLogObject& aObject, DDMessageIndex aIndex,
     41    const DDTimeStamp& aConstructionTimeStamp) {
     42  // Use negative tags for yet-unclassified messages.
     43  static int32_t sTag = 0;
     44  if (--sTag > 0) {
     45    sTag = -1;
     46  }
     47  LifetimesForObject* lifetimes = mLifetimes.GetOrInsertNew(aObject, 1);
     48  DDLifetime& lifetime = *lifetimes->AppendElement(
     49      DDLifetime(aObject, aIndex, aConstructionTimeStamp, sTag));
     50  return lifetime;
     51 }
     52 
     53 void DDLifetimes::RemoveLifetime(const DDLifetime* aLifetime) {
     54  LifetimesForObject* lifetimes = mLifetimes.Get(aLifetime->mObject);
     55  MOZ_ASSERT(lifetimes);
     56  DDL_LOG(aLifetime->mMediaElement ? mozilla::LogLevel::Debug
     57                                   : mozilla::LogLevel::Warning,
     58          "Remove lifetime %s", aLifetime->Printf().get());
     59  // We should have been given a pointer inside this lifetimes array.
     60  auto arrayIndex = aLifetime - lifetimes->Elements();
     61  MOZ_ASSERT(static_cast<size_t>(arrayIndex) < lifetimes->Length());
     62  lifetimes->RemoveElementAt(arrayIndex);
     63 }
     64 
     65 void DDLifetimes::RemoveLifetimesFor(
     66    const dom::HTMLMediaElement* aMediaElement) {
     67  for (const auto& lifetimes : mLifetimes.Values()) {
     68    lifetimes->RemoveElementsBy([aMediaElement](const DDLifetime& lifetime) {
     69      return lifetime.mMediaElement == aMediaElement;
     70    });
     71  }
     72 }
     73 
     74 void DDLifetimes::Clear() { mLifetimes.Clear(); }
     75 
     76 size_t DDLifetimes::SizeOfExcludingThis(MallocSizeOf aMallocSizeOf) const {
     77  size_t size = mLifetimes.ShallowSizeOfExcludingThis(aMallocSizeOf);
     78  for (const auto& lifetimes : mLifetimes.Values()) {
     79    size += lifetimes->ShallowSizeOfExcludingThis(aMallocSizeOf);
     80  }
     81  return size;
     82 }
     83 
     84 }  // namespace mozilla