#include <civlc.cvh>
#include <omp.h>
#include <civl-omp.cvh>
#include <stdbool.h>

// implementations of functions in omp.h go here...

struct omp_lock_t{
  _Bool lock;
};

/************************** OMP LIB Implementations *******************************/

void omp_init_lock(omp_lock_t *slock){
  slock->lock = false;
}

void omp_destroy_lock(omp_lock_t *slock){
  omp_lock_t blank;
  *slock = blank;
}

/* Waits for the lock to available and grabs it,
 * AND performs a flush_all on the team, as mandated
 * by the OpenMP Standard. */
void $omp_set_lock(omp_lock_t *slock, $omp_team team) {
  $atomic {
    $when(!slock->lock) slock->lock = true;
    $omp_flush_all(team);
  }
}

/* Releases the lock 
 * AND performs a flush_all on the team, as mandated
 * by the OpenMP Standard. */
void $omp_unset_lock(omp_lock_t *slock, $omp_team team) {
  $atomic {
    slock->lock = false;
    $omp_flush_all(team);
  }
}

/* These are replaced by $omp_set_lock and
 * $omp_unset_lock.  Those functionsn do the
 * flush on the whole team, as required by
 * the OpenMP Standard...
 
void omp_set_lock(omp_lock_t *slock){
  $atomic{
    $when(!slock->lock){
      slock->lock = true;
    }
  }
}

void omp_unset_lock(omp_lock_t *slock){
  $atomic{
    slock->lock = false;
  }
}
*/

$abstract double OMP_time(int time_count);

double omp_get_wtime() {
  int OMP_time_count = $next_time_count();
  double result = OMP_time(OMP_time_count);
  
  if (OMP_time_count > 0) {
    $assume(result > OMP_time(OMP_time_count-1));
  } else {
    $assume(result > 0);
  }
  return result;
}


/*
void omp_set_num_threads (int);
int omp_get_num_threads (void);
int omp_get_max_threads (void);
int omp_get_thread_num (void);
int omp_get_num_procs (void);
int omp_in_parallel (void);
void omp_set_dynamic (int);
int omp_get_dynamic (void);
void omp_set_nested (int);
int omp_get_nested (void);
void omp_init_lock (omp_lock_t *);
void omp_destroy_lock (omp_lock_t *);
void omp_set_lock (omp_lock_t *);
void omp_unset_lock (omp_lock_t *);
int omp_test_lock (omp_lock_t *);
void omp_init_nest_lock (omp_nest_lock_t *);
void omp_destroy_nest_lock (omp_nest_lock_t *);
void omp_set_nest_lock (omp_nest_lock_t *);
void omp_unset_nest_lock (omp_nest_lock_t *);
int omp_test_nest_lock (omp_nest_lock_t *);
double omp_get_wtime (void);
double omp_get_wtick (void);
*/