void woman_enter()
{
clock_t start, stop;
double waittime;
start = clock();
int id = get_simple_tid(pthread_self());
//Man entry code here
/* */
printf("Thread f%d trying to get in the restroom\n", id);
pthread_mutex_lock(&female_mutex);
while(femaleCount == RR_CAP){
pthread_cond_wait(&female_full, &female_mutex);
}
// printf("%d\n", value);
sem_wait(&female_semaphore);
stop = clock();
waittime = (double) (stop-start)/CLOCKS_PER_SEC;
++femaleCount;
pthread_mutex_unlock(&female_mutex);
printf("Thread f%d got in!\n", id);
printf("Wait time for thread f%d was %f\n", id, waittime);
}
void do_other_stuff()
{
struct timespec req, rem;
double worktime;
worktime = OTHER_SLEEP * (random() / (1.0*(double) ((unsigned long) RAND_MAX)));
req.tv_sec = (int) floor(worktime);
req.tv_nsec = (unsigned int) ( (worktime - (int) floor(worktime)) * 1000000000);
printf("Thread %d working for %lf time\n", get_simple_tid(pthread_self()), worktime);
nanosleep(&req,&rem);
}
void use_rr()
{
struct timespec req, rem;
double usetime;
usetime = RR_MAXSLEEP * (random() / (1.0*(double) ((unsigned long) RAND_MAX)));
req.tv_sec = (int) floor(usetime);
req.tv_nsec = (unsigned int) ( (usetime - (int) floor(usetime)) * 1000000000);
printf("Thread %d using restroom for %lf time\n", get_simple_tid(pthread_self()), usetime);
nanosleep(&req,&rem);
}
//Males leaves restroom after using it
//If last male, switch sign to empty
void man_leave()
{
int value;
int id = get_simple_tid(pthread_self());
pthread_mutex_lock(&semcheck); //Lock resrources
sem_post(&capacity_semaphore); //"Exit res
sem_getvalue(&capacity_semaphore, &value);
if (value == 2) //If no more men in the restroom
gender = 0; //Sign says empty - either gender may enter first
printf("Man %d leaving, there are %d men left in the restroom\n", id, (2 - value));
pthread_mutex_unlock(&semcheck); //Unlock resources
}
void woman_leave()
{
int id = get_simple_tid(pthread_self());
//Exit code here
/* */
pthread_mutex_lock(&female_mutex);
sem_post(&female_semaphore);
--femaleCount;
pthread_cond_broadcast(&female_full);
pthread_mutex_unlock(&female_mutex);
printf("thread f %d left!\n",id);
}
//After using the restroom, female will exit
//If last one to leave, switch sign to say empty
void woman_leave()
{
int value;
int id = get_simple_tid(pthread_self());
pthread_mutex_lock(&semcheck); //Lock resources
sem_post(&capacity_semaphore); //"Exit restroom"
sem_getvalue(&capacity_semaphore, &value);
if (value == 2) //Zero people in the semaphore
gender = 0; //Restroom is up for grabs
printf("Woman %d leaving, there are %d women left in the restroom\n", id, (2 - value));
pthread_mutex_unlock(&semcheck); //Unlock resources
}
void man_leaveRR2()
{
int id = get_simple_tid(pthread_self());
//Exit code here
/* */
pthread_mutex_lock(&mutex);
sem_post(&rr2_semaphore);
--maleCountRR2;
pthread_cond_broadcast(&full);
pthread_mutex_unlock(&mutex);
printf("Thread m%d left!\n", id);
}
//Male tries to enter restroom
//Waits in line if restroom belongs to females or if male restroom is full
//Enters otherwise
void man_enter()
{
int value;
int id = get_simple_tid(pthread_self());
int shouldQuit = 0;
while (shouldQuit == 0) { //Keep checking until males allowed in restroom
pthread_mutex_lock(&semcheck); //Lock resources
if (gender != -1) { //If the restroom does not belong to females
if (gender == 0) {
gender = 1; //restroom now belongs to males
}
shouldQuit = 1;
}
pthread_mutex_unlock(&semcheck); //Unlock resources
}
sem_wait(&capacity_semaphore); //Enter restroom
sem_getvalue(&capacity_semaphore, &value);
printf("Man %d entering, there are %d men now in the restroom\n", id, (2 - value));
}
//Female tries to enter restroom
//Waits in line if restroom for men only or if female restroom is full
//Enters otherwise
void woman_enter()
{
int value;
int id = get_simple_tid(pthread_self());
int shouldQuit = 0;
while (shouldQuit == 0) { //Keep checking until gender is allowed in restroom
pthread_mutex_lock(&semcheck); //Lock resources
if (gender != 1) { // Wait until men are out of the restroom
if (gender == 0){
gender = -1; //restroom now belongs to females
}
shouldQuit = 1;
}
pthread_mutex_unlock(&semcheck); //Unlock resources
}
sem_wait(&capacity_semaphore); //"Enter restroom"
sem_getvalue(&capacity_semaphore, &value); //Get people in restroom
printf("Woman %d entering, there are %d women now in the restroom\n", id, (2 - value));
}
void woman_enter()
{
clock_t start, stop;
double waittime;
start = clock();
int id = get_simple_tid(pthread_self());
//Man entry code here
/* */
printf("Thread f%d trying to get in the restroom\n", id);
pthread_mutex_lock(&mutex);
while((maleCountRR1 > 0 || femaleCountRR1 == RR_CAP) && (maleCountRR2 > 0 || femaleCountRR2 == RR_CAP)){
pthread_cond_wait(&full, &mutex);
}
// printf("%d\n", value);
if(maleCountRR1 ==0 && femaleCountRR1 !=RR_CAP){
sem_wait(&rr1_semaphore);
stop = clock();
waittime = (double) (stop-start)/CLOCKS_PER_SEC;
++femaleCountRR1;
pthread_mutex_unlock(&mutex);
printf("Thread f%d got in to restroom 1!\n", id);
use_rr();
woman_leaveRR1();
}
else if(maleCountRR2 ==0 && femaleCountRR2 !=RR_CAP){
sem_wait(&rr2_semaphore);
stop = clock();
waittime = (double) (stop-start)/CLOCKS_PER_SEC;
++femaleCountRR2;
pthread_mutex_unlock(&mutex);
printf("Thread f%d got in to restroom 2!\n", id);
use_rr();
woman_leaveRR2();
}
printf("Wait time for thread f%d was %f\n", id, waittime);
}
