// Copyright 2020 The Cobalt Authors. All Rights Reserved.
//
// 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.

#include "starboard/shared/starboard/lazy_initialization_public.h"

#ifndef STARBOARD_SHARED_PTHREAD_TYPES_INTERNAL_H_
#define STARBOARD_SHARED_PTHREAD_TYPES_INTERNAL_H_

#if SB_API_VERSION >= SB_PORTABLE_THREAD_TYPES_VERSION
#define SB_PTHREAD_INTERNAL_MUTEX(mutex_ptr) \
  reinterpret_cast<pthread_mutex_t*>((mutex_ptr)->mutex_buffer)
#define SB_PTHREAD_INTERNAL_ONCE(once_ptr) \
  reinterpret_cast<pthread_once_t*>((once_ptr)->once_buffer)
#define SB_PTHREAD_INTERNAL_THREAD(thread) reinterpret_cast<pthread_t>(thread)
#define SB_PTHREAD_INTERNAL_THREAD_PTR(thread) \
  reinterpret_cast<pthread_t*>(&(thread))
#define SB_THREAD(thread) reinterpret_cast<SbThread>(thread)
#define SB_PTHREAD_INTERNAL_CONDITION(condition_var) \
  reinterpret_cast<SbConditionVariablePrivate*>(     \
      (condition_var)->condition_buffer)
#else
#define SB_PTHREAD_INTERNAL_MUTEX(mutex_ptr) (mutex_ptr)
#define SB_PTHREAD_INTERNAL_ONCE(once_ptr) (once_ptr)
#define SB_PTHREAD_INTERNAL_THREAD(thread) (thread)
#define SB_PTHREAD_INTERNAL_THREAD_PTR(thread) \
  reinterpret_cast<pthread_t*>(&(thread))
#define SB_THREAD(thread) (thread)
#define SB_PTHREAD_INTERNAL_CONDITION(condition_var) (condition_var)
#endif  // SB_API_VERSION >= SB_PORTABLE_THREAD_TYPES_VERSION

// Transparent Condition Variable handle.
// It is customized from the plain pthread_cont_t object because we
// need to ensure that each condition variable is initialized to use
// CLOCK_MONOTONIC, which is not the default (and the default is used
// when PTHREAD_COND_INITIALIZER is set).
typedef struct SbConditionVariablePrivate {
  InitializedState initialized_state;
  pthread_cond_t condition;
} SbConditionVariablePrivate;

#endif  // STARBOARD_SHARED_PTHREAD_TYPES_INTERNAL_H_