#include <condition_var.h>

ConditionVariable::ConditionVariable(void ) {
  pthread_cond_init( &cond_var, NULL);
  pthread_mutex_init( &mutex_var, NULL);
}


ConditionVariable::~ConditionVariable() {
  pthread_cond_destroy( &cond_var);

}


// Wait on a condition variable
int ConditionVariable::Wait(void) {
 return pthread_cond_wait( &cond_var, &mutex_var); 


}


// Signal all threads waiting on a condition variable
int ConditionVariable::Signal(void) {
  return pthread_cond_signal( &cond_var);
}