Exemple #1
0
NS_IMETHODIMP
nsMemoryInfoDumper::DumpGCAndCCLogsToFile(const nsAString& aIdentifier,
                                          bool aDumpAllTraces,
                                          bool aDumpChildProcesses,
                                          nsIDumpGCAndCCLogsCallback* aCallback)
{
  nsString identifier(aIdentifier);
  EnsureNonEmptyIdentifier(identifier);
  nsCOMPtr<nsIDumpGCAndCCLogsCallback> callbackHolder =
    new nsDumpGCAndCCLogsCallbackHolder(aCallback);

  if (aDumpChildProcesses) {
    nsTArray<ContentParent*> children;
    ContentParent::GetAll(children);
    for (uint32_t i = 0; i < children.Length(); i++) {
      ContentParent* cp = children[i];
      nsCOMPtr<nsICycleCollectorLogSink> logSink =
        nsCycleCollector_createLogSink();

      logSink->SetFilenameIdentifier(identifier);
      logSink->SetProcessIdentifier(cp->Pid());

      Unused << cp->CycleCollectWithLogs(aDumpAllTraces, logSink,
                                         callbackHolder);
    }
  }

  nsCOMPtr<nsICycleCollectorListener> logger =
    do_CreateInstance("@mozilla.org/cycle-collector-logger;1");

  if (aDumpAllTraces) {
    nsCOMPtr<nsICycleCollectorListener> allTracesLogger;
    logger->AllTraces(getter_AddRefs(allTracesLogger));
    logger = allTracesLogger;
  }

  nsCOMPtr<nsICycleCollectorLogSink> logSink;
  logger->GetLogSink(getter_AddRefs(logSink));

  logSink->SetFilenameIdentifier(identifier);

  nsJSContext::CycleCollectNow(logger);

  nsCOMPtr<nsIFile> gcLog, ccLog;
  logSink->GetGcLog(getter_AddRefs(gcLog));
  logSink->GetCcLog(getter_AddRefs(ccLog));
  callbackHolder->OnDump(gcLog, ccLog, /* parent = */ true);

  return NS_OK;
}