text: /*
   * Copyright 2016-present Facebook, Inc.
   *
   * 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.
   */
  
  #pragma once
  
  #include <folly/portability/Config.h>
  
  #if !defined(_WIN32)
  
  #include <pthread.h>
  
  #elif !FOLLY_HAVE_PTHREAD
  
  #include <cstdint>
  #include <memory>
  
  #include <folly/portability/Sched.h>
  #include <folly/portability/Time.h>
  #include <folly/portability/Windows.h>
  
  #define PTHREAD_CREATE_JOINABLE 0
  #define PTHREAD_CREATE_DETACHED 1
  
  #define PTHREAD_MUTEX_NORMAL 0
  #define PTHREAD_MUTEX_RECURSIVE 1
  #define PTHREAD_MUTEX_DEFAULT PTHREAD_MUTEX_NORMAL
  
  #define _POSIX_TIMEOUTS 200112L
  
  namespace folly {
  namespace portability {
  namespace pthread {
  struct pthread_attr_t {
    size_t stackSize;
    bool detached;
  };
  
  int pthread_attr_init(pthread_attr_t* attr);
  int pthread_attr_setdetachstate(pthread_attr_t* attr, int state);
  int pthread_attr_setstacksize(pthread_attr_t* attr, size_t kb);
  
  namespace pthread_detail {
  struct pthread_t {
    HANDLE handle{INVALID_HANDLE_VALUE};
    DWORD threadID{0};
    bool detached{false};
  
    ~pthread_t() noexcept;
  };
  } // namespace pthread_detail
  using pthread_t = std::shared_ptr<pthread_detail::pthread_t>;
  
  int pthread_equal(pthread_t threadA, pthread_t threadB);
  int pthread_create(
      pthread_t* thread,
      const pthread_attr_t* attr,
      void* (*start_routine)(void*),
      void* arg);
  pthread_t pthread_self();
  int pthread_join(pthread_t thread, void** exitCode);
  
  HANDLE pthread_getw32threadhandle_np(pthread_t thread);
  DWORD pthread_getw32threadid_np(pthread_t thread);
  
  int pthread_setschedparam(
      pthread_t thread,
      int policy,
      const sched_param* param);
  
  struct pthread_mutexattr_t {
    int type;
  };
  int pthread_mutexattr_init(pthread_mutexattr_t* attr);
  int pthread_mutexattr_destroy(pthread_mutexattr_t* attr);
  int pthread_mutexattr_settype(pthread_mutexattr_t* attr, int type);
  
  using pthread_mutex_t = struct pthread_mutex_t_*;
  int pthread_mutex_init(pthread_mutex_t* mutex, const pthread_mutexattr_t* attr);
  int pthread_mutex_destroy(pthread_mutex_t* mutex);
  int pthread_mutex_lock(pthread_mutex_t* mutex);
  int pthread_mutex_trylock(pthread_mutex_t* mutex);
  int pthread_mutex_unlock(pthread_mutex_t* mutex);
  int pthread_mutex_timedlock(
      pthread_mutex_t* mutex,
      const timespec* abs_timeout);
  
  using pthread_rwlock_t = struct pthread_rwlock_t_*;
  // Technically the second argument here is supposed to be a
  // const pthread_rwlockattr_t* but we don support it, so we
  // simply don't define pthread_rwlockattr_t at all to cause
  // a build-break if anyone tries to use it.
  int pthread_rwlock_init(pthread_rwlock_t* rwlock, const void* attr);
  int pthread_rwlock_destroy(pthread_rwlock_t* rwlock);
  int pthread_rwlock_rdlock(pthread_rwlock_t* rwlock);
  int pthread_rwlock_tryrdlock(pthread_rwlock_t* rwlock);
  int pthread_rwlock_timedrdlock(
      pthread_rwlock_t* rwlock,
      const timespec* abs_timeout);
  int pthread_rwlock_wrlock(pthread_rwlock_t* rwlock);
  int pthread_rwlock_trywrlock(pthread_rwlock_t* rwlock);
  int pthread_rwlock_timedwrlock(
      pthread_rwlock_t* rwlock,
      const timespec* abs_timeout);
  int pthread_rwlock_unlock(pthread_rwlock_t* rwlock);
  
  using pthread_cond_t = struct pthread_cond_t_*;
  // Once again, technically the second argument should be a
  // pthread_condattr_t, but we don't implement it, so void*
  // it is.
  int pthread_cond_init(pthread_cond_t* cond, const void* attr);
  int pthread_cond_destroy(pthread_cond_t* cond);
  int pthread_cond_wait(pthread_cond_t* cond, pthread_mutex_t* mutex);
  int pthread_cond_timedwait(
      pthread_cond_t* cond,
      pthread_mutex_t* mutex,
      const timespec* abstime);
  int pthread_cond_signal(pthread_cond_t* cond);
  int pthread_cond_broadcast(pthread_cond_t* cond);
  
  // In reality, this is boost::thread_specific_ptr*, but we're attempting
  // to avoid introducing boost into a portability header.
  using pthread_key_t = void*;
  
  int pthread_key_create(pthread_key_t* key, void (*destructor)(void*));
  int pthread_key_delete(pthread_key_t key);
  void* pthread_getspecific(pthread_key_t key);
  int pthread_setspecific(pthread_key_t key, const void* value);
  } // namespace pthread
  } // namespace portability
  } // namespace folly
  
  /* using override */ using namespace folly::portability::pthread;
  #endif
  