#include <unistd.h>
#include <sys/types.h>
#include <pthread.h>
#include <stdlib.h>
#include <stdio.h>

/*      ASSUMPTIONS
1.      Only up to 5 savages can attend the tribal communal dinner. (Test version only)
2.      There is no limit on how many savages can come within a given time.
3.      What they are eating is not missionary stew: it's "Survivor" stew. MWAHAHAHAHAHAHAHA!!!!!!
*/
	

/*global variables, threads, and mutexes*/

pthread_t thrSavages[5];
pthread_t thrCook;
pthread_mutex_t lPot;
pthread_mutex_t lCall;
pthread_mutex_t lArrive;
int iNumArrive = 0;
int iCall = 0;
int iPot;


/*Process calls*/
void *savage (void *);
void *cook (void *);



/*main program*/

main()
{
        int iTime = 0;
        int iSavageArrive[5]; 	//stores the arrival time of savages
        int i;
        int j;
        int iTempNA; 		//temporary variable holding 
				//iNumArrive's max value
        int iIdArrive[5]; 	//stores the ID of those who 
				//arrived at present time

        /*initialization of mutex variables*/

        pthread_mutex_init(&lPot, pthread_mutexattr_default);
        pthread_mutex_init(&lCall, pthread_mutexattr_default);
        pthread_mutex_init(&lArrive, pthread_mutexattr_default);


        /*get input. Test version only*/

        for(i=0; i<5; i++)
        {
                printf("\nEnter Savage %d 's arrival time: ", i);
                scanf("%d", &iSavageArrive[i]);
        }
	
	//Initialize the pot to contain 2 servings of 
	//"Survivor" participants

	iPot = 2;

        /*MAIN LOOP STARTS HERE*/

        for(iTime = 0; iTime < 10; iTime++)
        {
		printf("\nTime: %d", iTime);

                iNumArrive = 0;
		j = 0;
                
		/*gets the ID's of those who arrived in this time*/
		
		for(i=0; i< 5; i++)
                {	if (iSavageArrive[i] == iTime)
			{
				iNumArrive++;
				iIdArrive[j] = i;
				printf("\nSavage %d ",iIdArrive[j]); 
				printf("arrived at time ");
				printf("%d.", iTime);
				j++;
			}
		}			

		//printf("\n %d", iNumArrive);

		
		//gets iNumArrive's value since the said variable will
		//decremented by the threads...
		iTempNA = iNumArrive;

		//start the cook thread here

		/*This for loop calls the threads of the savages who arrived at this time*/

		for(i=0; i< 5; i++)
		{
			for(j=0; j< iTempNA; j++)
			{
				if (i == iIdArrive[j])
				{
				  printf("\n%d", i);
				  printf("eats! YUM!");
				  //call savage thread[i] here
				} 
			}
		}

		//put the pthread join here joining this and the cook thread

        }

	sleep(3);
	printf("\nNo one wins Survivor. The savages get the one million dollars!!!");
	printf("\n THE TRIBE HAS SPOKEN.\n");

}