text: /*
   * Copyright (c) 2015, Aleksey Demakov
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * * Redistributions of source code must retain the above copyright notice, this
   *   list of conditions and the following disclaimer.
   * 
   * * Redistributions in binary form must reproduce the above copyright notice,
   *   this list of conditions and the following disclaimer in the documentation
   *   and/or other materials provided with the distribution.
   * 
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #ifndef PTHREAD_BARRIER_H
  #define PTHREAD_BARRIER_H
  
  #include <pthread.h>
  
  #ifdef __APPLE__
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  #if !defined(PTHREAD_BARRIER_SERIAL_THREAD)
  # define PTHREAD_BARRIER_SERIAL_THREAD	(1)
  #endif
  
  #if !defined(PTHREAD_PROCESS_PRIVATE)
  # define PTHREAD_PROCESS_PRIVATE	(42)
  #endif
  #if !defined(PTHREAD_PROCESS_SHARED)
  # define PTHREAD_PROCESS_SHARED		(43)
  #endif
  
  typedef struct {
  } pthread_barrierattr_t;
  
  typedef struct {
  	pthread_mutex_t mutex;
  	pthread_cond_t cond;
  	unsigned int limit;
  	unsigned int count;
  	unsigned int phase;
  } pthread_barrier_t;
  
  int pthread_barrierattr_init(pthread_barrierattr_t *attr);
  int pthread_barrierattr_destroy(pthread_barrierattr_t *attr);
  
  int pthread_barrierattr_getpshared(const pthread_barrierattr_t *restrict attr,
  				   int *restrict pshared);
  int pthread_barrierattr_setpshared(pthread_barrierattr_t *attr,
  				   int pshared);
  
  int pthread_barrier_init(pthread_barrier_t *restrict barrier,
  			 const pthread_barrierattr_t *restrict attr,
  			 unsigned int count);
  int pthread_barrier_destroy(pthread_barrier_t *barrier);
  
  int pthread_barrier_wait(pthread_barrier_t *barrier);
  
  #ifdef  __cplusplus
  }
  #endif
  
  #endif /* __APPLE__ */
  
  #endif /* PTHREAD_BARRIER_H */
  