C++ CrashReporterParent类代码示例

void
PluginModuleParent::WriteExtraDataForMinidump(AnnotationTable& notes)
{
    typedef nsDependentCString CS;

    // Get the plugin filename, try to get just the file leafname
    const std::string& pluginFile = mSubprocess->GetPluginFilePath();
    size_t filePos = pluginFile.rfind(FILE_PATH_SEPARATOR);
    if (filePos == std::string::npos)
        filePos = 0;
    else
        filePos++;
    notes.Put(CS("PluginFilename"), CS(pluginFile.substr(filePos).c_str()));

    //TODO: add plugin name and version: bug 539841
    // (as PluginName, PluginVersion)
    notes.Put(CS("PluginName"), CS(""));
    notes.Put(CS("PluginVersion"), CS(""));

    CrashReporterParent* crashReporter = CrashReporter();
    if (crashReporter) {
        const nsString& hangID = crashReporter->HangID();
        if (!hangID.IsEmpty())
            notes.Put(CS("HangID"), NS_ConvertUTF16toUTF8(hangID));
    }
}

bool
PluginModuleParent::ShouldContinueFromReplyTimeout()
{
#ifdef MOZ_CRASHREPORTER
    CrashReporterParent* crashReporter = CrashReporter();
    if (crashReporter->GeneratePairedMinidump(this)) {
        mBrowserDumpID = crashReporter->ParentDumpID();
        mPluginDumpID = crashReporter->ChildDumpID();
        PLUGIN_LOG_DEBUG(
                ("generated paired browser/plugin minidumps: %s/%s (ID=%s)",
                 NS_ConvertUTF16toUTF8(mBrowserDumpID).get(),
                 NS_ConvertUTF16toUTF8(mPluginDumpID).get(),
                 NS_ConvertUTF16toUTF8(crashReporter->HangID()).get()));
    } else {
        NS_WARNING("failed to capture paired minidumps from hang");
    }
#endif

    // this must run before the error notification from the channel,
    // or not at all
    MessageLoop::current()->PostTask(
        FROM_HERE,
        mTaskFactory.NewRunnableMethod(
            &PluginModuleParent::CleanupFromTimeout));

    if (!KillProcess(OtherProcess(), 1, false))
        NS_WARNING("failed to kill subprocess!");

    return false;
}

bool
PluginModuleParent::ShouldContinueFromReplyTimeout()
{
#ifdef MOZ_CRASHREPORTER
    CrashReporterParent* crashReporter = CrashReporter();
    crashReporter->AnnotateCrashReport(NS_LITERAL_CSTRING("PluginHang"),
                                       NS_LITERAL_CSTRING("1"));
    if (crashReporter->GeneratePairedMinidump(this)) {
        mPluginDumpID = crashReporter->ChildDumpID();
        PLUGIN_LOG_DEBUG(
                ("generated paired browser/plugin minidumps: %s)",
                 NS_ConvertUTF16toUTF8(mPluginDumpID).get()));

        crashReporter->AnnotateCrashReport(
            NS_LITERAL_CSTRING("additional_minidumps"),
            NS_LITERAL_CSTRING("browser"));

        // TODO: collect Flash minidumps here
    } else {
        NS_WARNING("failed to capture paired minidumps from hang");
    }
#endif

#ifdef XP_WIN
    // collect cpu usage for plugin processes

    InfallibleTArray<base::ProcessHandle> processHandles;
    base::ProcessHandle handle;

    processHandles.AppendElement(OtherProcess());
#ifdef MOZ_CRASHREPORTER_INJECTOR
    if (mFlashProcess1 && base::OpenProcessHandle(mFlashProcess1, &handle)) {
      processHandles.AppendElement(handle);
    }
    if (mFlashProcess2 && base::OpenProcessHandle(mFlashProcess2, &handle)) {
      processHandles.AppendElement(handle);
    }
#endif

    if (!GetProcessCpuUsage(processHandles, mPluginCpuUsageOnHang)) {
      mPluginCpuUsageOnHang.Clear();
    }
#endif

    // this must run before the error notification from the channel,
    // or not at all
    MessageLoop::current()->PostTask(
        FROM_HERE,
        mTaskFactory.NewRunnableMethod(
            &PluginModuleParent::CleanupFromTimeout));

    if (!KillProcess(OtherProcess(), 1, false))
        NS_WARNING("failed to kill subprocess!");

    return false;
}

mozilla::dom::PCrashReporterParent*
GMPParent::AllocPCrashReporterParent(const NativeThreadId& aThread)
{
#ifndef MOZ_CRASHREPORTER
  MOZ_ASSERT(false, "Should only be sent if crash reporting is enabled.");
#endif
  CrashReporterParent* cr = new CrashReporterParent();
  cr->SetChildData(aThread, GeckoProcessType_GMPlugin);
  return cr;
}

void
PluginModuleParent::ActorDestroy(ActorDestroyReason why)
{
    switch (why) {
    case AbnormalShutdown: {
#ifdef MOZ_CRASHREPORTER
        CrashReporterParent* crashReporter = CrashReporter();

        CrashReporter::AnnotationTable notes;
        notes.Init(4);
        WriteExtraDataForMinidump(notes);
        
        if (!mPluginDumpID.IsEmpty() && !mBrowserDumpID.IsEmpty()) {
            crashReporter->GenerateHangCrashReport(&notes);
        }
        else if (!mPluginDumpID.IsEmpty()) {
            // Nothing to do, we've already written this minidump in
            // PluginModuleParent::OnCrash
        }
        else if (crashReporter->GenerateCrashReport(this, &notes)) {
            mPluginDumpID = crashReporter->ChildDumpID();
            PLUGIN_LOG_DEBUG(("got child minidump: %s",
                              NS_ConvertUTF16toUTF8(mPluginDumpID).get()));
        }
        else {
            NS_WARNING("[PluginModuleParent::ActorDestroy] abnormal shutdown without minidump!");
        }
#endif

        mShutdown = true;
        // Defer the PluginCrashed method so that we don't re-enter
        // and potentially modify the actor child list while enumerating it.
        if (mPlugin)
            MessageLoop::current()->PostTask(
                FROM_HERE,
                mTaskFactory.NewRunnableMethod(
                    &PluginModuleParent::NotifyPluginCrashed));
        break;
    }
    case NormalShutdown:
        mShutdown = true;
        break;

    default:
        NS_ERROR("Unexpected shutdown reason for toplevel actor.");
    }
}

void
PluginModuleParent::WriteExtraDataForMinidump(AnnotationTable& notes)
{
    typedef nsDependentCString CS;

    // Get the plugin filename, try to get just the file leafname
    const std::string& pluginFile = mSubprocess->GetPluginFilePath();
    size_t filePos = pluginFile.rfind(FILE_PATH_SEPARATOR);
    if (filePos == std::string::npos)
        filePos = 0;
    else
        filePos++;
    notes.Put(CS("PluginFilename"), CS(pluginFile.substr(filePos).c_str()));

    //TODO: add plugin name and version: bug 539841
    // (as PluginName, PluginVersion)
    notes.Put(CS("PluginName"), CS(""));
    notes.Put(CS("PluginVersion"), CS(""));

    CrashReporterParent* crashReporter = CrashReporter();
    if (crashReporter) {
        const nsString& hangID = crashReporter->HangID();
        if (!hangID.IsEmpty()) {
            notes.Put(CS("HangID"), NS_ConvertUTF16toUTF8(hangID));
#ifdef XP_WIN
            if (mPluginCpuUsageOnHang.Length() > 0) {
              notes.Put(CS("NumberOfProcessors"),
                        nsPrintfCString("%d", PR_GetNumberOfProcessors()));

              nsCString cpuUsageStr;
              cpuUsageStr.AppendFloat(std::ceil(mPluginCpuUsageOnHang[0] * 100) / 100);
              notes.Put(CS("PluginCpuUsage"), cpuUsageStr);

#ifdef MOZ_CRASHREPORTER_INJECTOR
              for (uint32_t i=1; i<mPluginCpuUsageOnHang.Length(); ++i) {
                nsCString tempStr;
                tempStr.AppendFloat(std::ceil(mPluginCpuUsageOnHang[i] * 100) / 100);
                notes.Put(nsPrintfCString("CpuUsageFlashProcess%d", i), tempStr);
              }
#endif
            }
#endif
        }
    }
}

void
GMPParent::GetCrashID(nsString& aResult)
{
  CrashReporterParent* cr = nullptr;
  if (ManagedPCrashReporterParent().Length() > 0) {
    cr = static_cast<CrashReporterParent*>(ManagedPCrashReporterParent()[0]);
  }
  if (NS_WARN_IF(!cr)) {
    return;
  }

  AnnotationTable notes(4);
  WriteExtraDataForMinidump(notes);
  nsCOMPtr<nsIFile> dumpFile;
  TakeMinidump(getter_AddRefs(dumpFile), nullptr);
  if (!dumpFile) {
    NS_WARNING("GMP crash without crash report");
    return;
  }
  GetIDFromMinidump(dumpFile, aResult);
  cr->GenerateCrashReportForMinidump(dumpFile, &notes);
}

void
ContentParent::ActorDestroy(ActorDestroyReason why)
{
    nsCOMPtr<nsIThreadObserver>
        kungFuDeathGrip(static_cast<nsIThreadObserver*>(this));
    nsCOMPtr<nsIObserverService> obs = mozilla::services::GetObserverService();
    if (obs) {
        obs->RemoveObserver(static_cast<nsIObserver*>(this), "xpcom-shutdown");
        obs->RemoveObserver(static_cast<nsIObserver*>(this), "memory-pressure");
        obs->RemoveObserver(static_cast<nsIObserver*>(this), "child-memory-reporter-request");
        obs->RemoveObserver(static_cast<nsIObserver*>(this), NS_IPC_IOSERVICE_SET_OFFLINE_TOPIC);
        obs->RemoveObserver(static_cast<nsIObserver*>(this), "child-gc-request");
        obs->RemoveObserver(static_cast<nsIObserver*>(this), "child-cc-request");
#ifdef ACCESSIBILITY
        obs->RemoveObserver(static_cast<nsIObserver*>(this), "a11y-init-or-shutdown");
#endif
    }

    mMessageManager->Disconnect();

    // clear the child memory reporters
    InfallibleTArray<MemoryReport> empty;
    SetChildMemoryReporters(empty);

    // remove the global remote preferences observers
    nsCOMPtr<nsIPrefBranch2> prefs 
            (do_GetService(NS_PREFSERVICE_CONTRACTID));
    if (prefs) { 
        prefs->RemoveObserver("", this);
    }

    RecvRemoveGeolocationListener();
    RecvRemoveDeviceMotionListener();

    nsCOMPtr<nsIThreadInternal>
        threadInt(do_QueryInterface(NS_GetCurrentThread()));
    if (threadInt)
        threadInt->RemoveObserver(this);
    if (mRunToCompletionDepth)
        mRunToCompletionDepth = 0;

    if (gContentParents) {
        gContentParents->RemoveElement(this);
        if (!gContentParents->Length()) {
            delete gContentParents;
            gContentParents = NULL;
        }
    }

    mIsAlive = false;

    if (obs) {
        nsRefPtr<nsHashPropertyBag> props = new nsHashPropertyBag();
        props->Init();

        if (AbnormalShutdown == why) {
            props->SetPropertyAsBool(NS_LITERAL_STRING("abnormal"), true);

#ifdef MOZ_CRASHREPORTER
            MOZ_ASSERT(ManagedPCrashReporterParent().Length() > 0);
            CrashReporterParent* crashReporter =
                    static_cast<CrashReporterParent*>(ManagedPCrashReporterParent()[0]);

            crashReporter->GenerateCrashReport(this, NULL);
 
            nsAutoString dumpID(crashReporter->ChildDumpID());
            props->SetPropertyAsAString(NS_LITERAL_STRING("dumpID"), dumpID);
#endif

            obs->NotifyObservers((nsIPropertyBag2*) props, "ipc:content-shutdown", nsnull);
        }
    }

    MessageLoop::current()->
        PostTask(FROM_HERE,
                 NewRunnableFunction(DelayedDeleteSubprocess, mSubprocess));
    mSubprocess = NULL;

    // IPDL rules require actors to live on past ActorDestroy, but it
    // may be that the kungFuDeathGrip above is the last reference to
    // |this|.  If so, when we go out of scope here, we're deleted and
    // all hell breaks loose.
    //
    // This runnable ensures that a reference to |this| lives on at
    // least until after the current task finishes running.
    NS_DispatchToCurrentThread(new DelayedDeleteContentParentTask(this));
}

void
PluginModuleParent::ProcessFirstMinidump()
{
    CrashReporterParent* crashReporter = CrashReporter();
    if (!crashReporter)
        return;

    AnnotationTable notes;
    notes.Init(4);
    WriteExtraDataForMinidump(notes);
        
    if (!mPluginDumpID.IsEmpty() && !mBrowserDumpID.IsEmpty()) {
        crashReporter->GenerateHangCrashReport(&notes);
        return;
    }

    uint32_t sequence = PR_UINT32_MAX;
    nsCOMPtr<nsIFile> dumpFile;
    nsAutoCString flashProcessType;
    TakeMinidump(getter_AddRefs(dumpFile), &sequence);

#ifdef MOZ_CRASHREPORTER_INJECTOR
    nsCOMPtr<nsIFile> childDumpFile;
    uint32_t childSequence;

    if (mFlashProcess1 &&
        TakeMinidumpForChild(mFlashProcess1,
                             getter_AddRefs(childDumpFile),
                             &childSequence)) {
        if (childSequence < sequence) {
            RemoveMinidump(dumpFile);
            dumpFile = childDumpFile;
            sequence = childSequence;
            flashProcessType.AssignLiteral("Broker");
        }
        else {
            RemoveMinidump(childDumpFile);
        }
    }
    if (mFlashProcess2 &&
        TakeMinidumpForChild(mFlashProcess2,
                             getter_AddRefs(childDumpFile),
                             &childSequence)) {
        if (childSequence < sequence) {
            RemoveMinidump(dumpFile);
            dumpFile = childDumpFile;
            sequence = childSequence;
            flashProcessType.AssignLiteral("Sandbox");
        }
        else {
            RemoveMinidump(childDumpFile);
        }
    }
#endif

    if (!dumpFile) {
        NS_WARNING("[PluginModuleParent::ActorDestroy] abnormal shutdown without minidump!");
        return;
    }

    PLUGIN_LOG_DEBUG(("got child minidump: %s",
                      NS_ConvertUTF16toUTF8(mPluginDumpID).get()));

    GetIDFromMinidump(dumpFile, mPluginDumpID);
    if (!flashProcessType.IsEmpty()) {
        notes.Put(NS_LITERAL_CSTRING("FlashProcessDump"), flashProcessType);
    }
    crashReporter->GenerateCrashReportForMinidump(dumpFile, &notes);
}