shit

#include<stdio.h>

main()
{
    printf("Hello World");


//spinlock names

//wmutex
//readtry
//resource
//rmutex
//rentry
//


//Favoring Writers




//Writer

writerSolution2{
    //<Entry Section>

    spinlock_lock(&wmutex); //set mutex lock to avoid race conditions on incrementing writer
    writers++; //increment writer
    if(writers == 1)
        spinlock_lock(&readtry); //lock readtry if this is the first writer
    spinlock_unlock(&wmutex); //unlock wmutex
    spinlock_lock(&resource); //lock resource and goto critical


    //CRIT SECTION


    //<Exit Section>
    spinlock_unlock(&resource); //unlock resource on critical section
    spinlock_lock(&wmutex); //lock wmutex to decrement writers
    writers--;
    if (writers == 0) //if that was the last writer
        spinlock_unlock(&readtry); //unlock readtry, make accessible to readers
    spinlock_unlock(&wmutex); //unlock wmutex

}
//Reader
readerSolution2{

    //entry section
    spinlock_lock(&rentry); //lock rentry
    spinlock_lock(&readtry);//lock readtry
    spinlock_lock(&rmutex);//lock wmutex all 3 locked
    readers++; //increment readers
    if(readers == 1)
        spinlock_lock(resource); //lock rescource if that was the first reader
    spinlock_unlock(&rmutex); //unlock mutex
    spinlock_unlock(&readtry); //unlock readtry
    spinlock_unlock(&rentry); //unlock rentry after all 3 unlocked go to crit section

    //critical section


    //exit section
    spinlock_lock(&rmutex); //lock mutex for decrementing readers
    readers--; //decrement readers
    if (readers == 0) //if that was the last reader
        spinlock_unlock(&resource); //unlock resource for the writers
    spinlock_unlock(&rmutex); //unlock rmutex

}

//mutex
//mutex1
//read
//write
//

readerSolution3{

    //entry section

    spinlock_lock(&mutex); // lock mutex
    if ((writers > 0) &&(readers == 0)){ //check if there are writers and if there are 0 readers
        spinlock_unlock(&mutex); //if so we unlock mutex
        spinlock_lock(&resource); //and lock resource as well as mutex again
        spinlock_lock(&mutex);
    }
    readers++; //increment readers
    spinlock_unlock(mutex); //unlock mutex (this was to avoid race conditions on readers when incrementing)

    //critical section


    //exit section
    spinlock_lock(&mutex); //lock mutex
    readers--; //decrement readers
    if (readers == 0) //if there are no remaining readers
        spinlock_unlock(&resource); //unlock the resource for other writers
    spinlock_unlock(&mutex); //unlock mutex (this was for race conditions when decrementing readers

}

writerSolution3{

    //entry section
    spinlock_lock(&mutex); //lock mutex for race conditions on mutex
    writers++; //increment writers
    spinlock_unlock(&mutex); //unlock mutex
    spinlock_lock(&resource); //lock resource

    //critical section

    //exit section
    spinlock_lock(&mutex); //lock mutex
    writers--; //decrement writers
    spinlock_unlock(&mutex); //unlock mutex
    spinlock_unlock(&resource); //unlock resource



}