C++ (Cpp) hashMutex示例

示例#1

文件： Telemetry.cpp 项目： FunkyVerb/devtools-window

void
TelemetryImpl::StoreSlowSQL(const nsACString &sql, uint32_t delay,
                            bool isDynamicSql, bool isTrackedDB, bool isAggregate)
{
  AutoHashtable<SlowSQLEntryType> *slowSQLMap = NULL;
  if (NS_IsMainThread())
    slowSQLMap = &(sTelemetry->mSlowSQLOnMainThread);
  else
    slowSQLMap = &(sTelemetry->mSlowSQLOnOtherThread);

  MutexAutoLock hashMutex(sTelemetry->mHashMutex);

  SlowSQLEntryType *entry = slowSQLMap->GetEntry(sql);
  if (!entry) {
    entry = slowSQLMap->PutEntry(sql);
    if (NS_UNLIKELY(!entry))
      return;
    entry->mData.isDynamicSql = isDynamicSql;
    entry->mData.isTrackedDb = isTrackedDB;
    entry->mData.isAggregate = isAggregate;

    entry->mData.hitCount = 0;
    entry->mData.totalTime = 0;
  }

  entry->mData.hitCount++;
  entry->mData.totalTime += delay;
}

示例#2

文件： Telemetry.cpp 项目： vingtetun/mozilla-central

void
TelemetryImpl::RecordSlowStatement(const nsACString &statement,
                                   const nsACString &dbName,
                                   PRUint32 delay)
{
  if (!sTelemetry) {
    // Make the service manager hold a long-lived reference to the service
    nsCOMPtr<nsITelemetry> telemetryService =
      do_GetService("@mozilla.org/base/telemetry;1");
    if (!telemetryService || !sTelemetry)
      return;
  }

  if (!sTelemetry->mCanRecord || !sTelemetry->mTrackedDBs.GetEntry(dbName))
    return;

  nsTHashtable<SlowSQLEntryType> *slowSQLMap = NULL;
  if (NS_IsMainThread())
    slowSQLMap = &(sTelemetry->mSlowSQLOnMainThread);
  else
    slowSQLMap = &(sTelemetry->mSlowSQLOnOtherThread);

  MutexAutoLock hashMutex(sTelemetry->mHashMutex);
  SlowSQLEntryType *entry = slowSQLMap->GetEntry(statement);
  if (!entry) {
    entry = slowSQLMap->PutEntry(statement);
    if (NS_UNLIKELY(!entry))
      return;
    entry->mData.hitCount = 0;
    entry->mData.totalTime = 0;
  }
  entry->mData.hitCount++;
  entry->mData.totalTime += delay;
}

示例#3

文件： Telemetry.cpp 项目： vingtetun/mozilla-central

NS_IMETHODIMP
TelemetryImpl::GetHistogramSnapshots(JSContext *cx, jsval *ret)
{
  JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
  if (!root_obj)
    return NS_ERROR_FAILURE;
  *ret = OBJECT_TO_JSVAL(root_obj);

  StatisticsRecorder::Histograms h;
  StatisticsRecorder::GetHistograms(&h);
  for (StatisticsRecorder::Histograms::iterator it = h.begin(); it != h.end();++it) {
    Histogram *h = *it;
    JSObject *hobj = JS_NewObject(cx, NULL, NULL, NULL);
    if (!(hobj
          && JS_DefineProperty(cx, root_obj, h->histogram_name().c_str(),
                               OBJECT_TO_JSVAL(hobj), NULL, NULL, JSPROP_ENUMERATE)
          && ReflectHistogramSnapshot(cx, hobj, h))) {
      return NS_ERROR_FAILURE;
    }
  }

  MutexAutoLock hashMutex(mHashMutex);
  // Add info about slow SQL queries on the main thread
  if (!AddSlowSQLInfo(cx, root_obj, true))
    return NS_ERROR_FAILURE;
  // Add info about slow SQL queries on other threads
  if (!AddSlowSQLInfo(cx, root_obj, false))
    return NS_ERROR_FAILURE;

  return NS_OK;
}

示例#4

void
TelemetryImpl::RecordSlowStatement(const nsACString &statement,
                                   const nsACString &dbName,
                                   PRUint32 delay)
{
  MOZ_ASSERT(sTelemetry);
  if (!sTelemetry->mCanRecord || !sTelemetry->mTrackedDBs.GetEntry(dbName))
    return;

  AutoHashtable<SlowSQLEntryType> *slowSQLMap = NULL;
  if (NS_IsMainThread())
    slowSQLMap = &(sTelemetry->mSlowSQLOnMainThread);
  else
    slowSQLMap = &(sTelemetry->mSlowSQLOnOtherThread);

  MutexAutoLock hashMutex(sTelemetry->mHashMutex);
  SlowSQLEntryType *entry = slowSQLMap->GetEntry(statement);
  if (!entry) {
    entry = slowSQLMap->PutEntry(statement);
    if (NS_UNLIKELY(!entry))
      return;
    entry->mData.hitCount = 0;
    entry->mData.totalTime = 0;
  }
  entry->mData.hitCount++;
  entry->mData.totalTime += delay;
}

示例#5

文件： Telemetry.cpp 项目： FunkyVerb/devtools-window

bool
TelemetryImpl::GetSQLStats(JSContext *cx, jsval *ret, bool includePrivateSql)
{
  JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
  if (!root_obj)
    return false;
  *ret = OBJECT_TO_JSVAL(root_obj);

  MutexAutoLock hashMutex(mHashMutex);
  // Add info about slow SQL queries on the main thread
  if (!AddSQLInfo(cx, root_obj, true, includePrivateSql))
    return false;
  // Add info about slow SQL queries on other threads
  if (!AddSQLInfo(cx, root_obj, false, includePrivateSql))
    return false;
  
  return true;
}

示例#6

NS_IMETHODIMP
TelemetryImpl::GetSlowSQL(JSContext *cx, jsval *ret)
{
  JSObject *root_obj = JS_NewObject(cx, NULL, NULL, NULL);
  if (!root_obj)
    return NS_ERROR_FAILURE;
  *ret = OBJECT_TO_JSVAL(root_obj);

  MutexAutoLock hashMutex(mHashMutex);
  // Add info about slow SQL queries on the main thread
  if (!AddSQLInfo(cx, root_obj, true))
    return NS_ERROR_FAILURE;
  // Add info about slow SQL queries on other threads
  if (!AddSQLInfo(cx, root_obj, false))
    return NS_ERROR_FAILURE;

  return NS_OK;
}