text: /*
   * Copyright (C) 2018 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  #ifndef ART_RUNTIME_GC_RACING_CHECK_H_
  #define ART_RUNTIME_GC_RACING_CHECK_H_
  
  #include <unistd.h>
  #include <android-base/logging.h>
  
  // For checking purposes, we occasionally compare global counter values.
  // These counters are generally updated without ordering constraints, and hence
  // we may actually see inconsistent values when checking. To minimize spurious
  // failures, try twice with an intervening short sleep. This is a hack not used
  // in production builds.
  #define RACING_DCHECK_LE(x, y) \
    if (::android::base::kEnableDChecks && ((x) > (y))) { usleep(1000); CHECK_LE(x, y); }
  
  #endif  // ART_RUNTIME_GC_RACING_CHECK_H_
  