void *Student(void *arg)
{
long id = (long) arg;
pthread_mutex_lock(&office_mutex);
// Student may enter the office if there is occupancy.
if (studentsInside < officeLimit) {
StudentEntersOffice(id);
} else { // Students must wait for space if there is no occupancy.
while (!officeCondition)
pthread_cond_wait(&office_capacity_cv, &office_mutex);
officeCondition = 0;
StudentEntersOffice(id);
}
pthread_mutex_unlock(&office_mutex);
int questionNumber = id % 4 + 1;
while (questionNumber > 0) {
pthread_mutex_lock(&student_mutex);
StartQuestion(id);
// Signal the professor that a student has posed a question
studentCondition = 1;
pthread_cond_signal(&student_question_cv);
pthread_mutex_lock(&student_question_mutex);
// Wait for the professor to finish answering the question.
while (!professorCondition)
pthread_cond_wait(&professor_complete_cv, &student_question_mutex);
professorCondition = 0;
QuestionComplete(id);
pthread_mutex_unlock(&student_question_mutex);
pthread_mutex_unlock(&student_mutex);
questionNumber--;
sleep(1); // Students must wait before posing an additional question.
}
StudentLeavesOffice(id);
}
void CMainDialog::StartQuestion(ResTextType text, bool warningYes, bool warningNo, bool fireParticles, DialogCallback yes, DialogCallback no)
{
std::string name;
GetResource(RES_TEXT, text, name);
StartQuestion(name, warningYes, warningNo, fireParticles, yes, no);
}