Fixed using selectedPhilosopher

DiningPhilosophers.c

@@ -19,20 +19,20 @@ typedef struct PhilosopherData {
     int position;
     sem_t semaphore;
     int state;
+    pthread_t thread;
 } PhilosopherData;
 
 bool AllPhilosophersFull(PhilosopherData PhilosopherList[], int numPhilosophers);
 void Down();
-void Eat(void* philosopherSelected);
+void Eat(PhilosopherData* philosopherSelected);
 int GetPhilosopherCount(char* argv);
-int GetAbsolutePosition(PhilosopherData PhilosopherSelected);
+void* Philosopher(void* philosopherPassed);
-void* Philosopher(void* philosopherSelected);
 void PhilosopherInit(int philosopherTotal);
 void PhilosopherListInit(PhilosopherData PhilosopherList[], int philosopherTotal);
-void PutForks(void* philosopherSelected);
+void PutForks(PhilosopherData* philosopherSelected);
-void TakeForks(void* philosopherSelected);
+void TakeForks(PhilosopherData* philosopherSelected);
 bool PhilosopherCanEat(PhilosopherData PhilosopherList[], int selectedPosition, int philosopherTotal);
-void Think(void* philosopherSelected);
+void Think(PhilosopherData* philosopherSelected);
 void Up();
 
 /*
@@ -91,9 +91,8 @@ void Down()
 //      Add changing state to function
 //      Add increasing eating count functionality
 //
-void Eat(void* philosopherSelected)
+void Eat(PhilosopherData* philosopherSelected)
 {
-    philosopherSelected.
     printf("Eat() was called...\n");
 }
 
@@ -106,18 +105,13 @@ int GetPhilosopherCount(char* argv)
     return philosopherTotal;
 }
 
-// Unused function to be removed
-int GetAbsolutePosition(PhilosopherData philosopherSelected)
-{
-    ;    
-}
-
 // Takes in the number of philosophers, from 0 to N-1
 // Finishes when all philosophers have eaten twice
 // TODO:
 //      Add splitting function into multiple pthreads
-void* Philosopher(void* philosopherSelected)
+void* Philosopher(void* philosopherPassed)
 {
+    PhilosopherData *philosopherSelected = (PhilosopherData*) philosopherPassed;
     // Below replaced by PhilosopherData
     // int philosopherEatingCount[numPhilosophers];
     // sem_t philosopherSemaphore[numPhilosophers];                 /*one semaphore per philospher*/
@@ -136,22 +130,18 @@ void* Philosopher(void* philosopherSelected)
 void PhilosopherInit(int philosopherTotal)
 {
     PhilosopherData PhilosopherList[philosopherTotal];
-    pthread_t PhilosopherThreads[philosopherTotal];
+    PhilosopherListInit(PhilosopherList, philosopherTotal);
-    for (int i = 0; i < philosopherTotal; i++)
-        pthread_create(&PhilosopherThreads[i], NULL, &Philosopher, &PhilosopherList[i]);
-    for (int i = 0; i < philosopherTotal; i++)
-        pthread_join(PhilosopherThreads[i], NULL);
     while (!AllPhilosophersFull(PhilosopherList, philosopherTotal))
     {
         for (int i = 0; i < philosopherTotal; i++)
         {
-            
             if (PhilosopherCanEat(PhilosopherList, i, philosopherTotal))
             {
                 Down(PhilosopherList[i-1].semaphore);
                 Down(PhilosopherList[i].semaphore);
             }
         }
+        break;
     }
 }
 
@@ -161,10 +151,13 @@ void PhilosopherListInit(PhilosopherData PhilosopherList[], int philosopherTotal
     {
         PhilosopherList[i].position = i;
         PhilosopherList[i].eatingCount = 0;
+        sem_init(&PhilosopherList[i].semaphore, 0, 1);
+        pthread_create(&PhilosopherList[i].thread, NULL, &Philosopher, &PhilosopherList[i]);
+        pthread_join(PhilosopherList[i].thread, NULL);
     }
 }
 
-void PutForks(void* philosopherSelected)
+void PutForks(PhilosopherData* philosopherSelected)
 {
     printf("PutForks() was called...\n");
     // Down(&mutex);               /*enter critical region*/
@@ -176,9 +169,10 @@ void PutForks(void* philosopherSelected)
 }
 
 // Takes in a number for a selected philosopher, from 0 to N-1
-void TakeForks(void* philosopherSelected)
+void TakeForks(PhilosopherData* philosopherSelected)
 {
     printf("TakeForks() was called...\n");
+    sem_wait(&philosopherSelected->semaphore);
     // Down(&mutex);               /*enter critical region*/
     // PhilosopherList.state = HUNGRY;          /*philosopher has finished eating*/
     // Test(selectedPhilosopher, );                    /*see if left neighbor can now eat*/
@@ -202,11 +196,12 @@ bool PhilosopherCanEat(PhilosopherData PhilosopherList[], int selectedPosition,
     return true;
 }
 
-void Think(void* philosopherSelected)
+void Think(PhilosopherData* philosopherSelected)
 {
     // printf("%d is now thinking.\n", PhilosopherList.position);
     // PhilosopherList.state = THINKING;          /*philosopher has finished eating*/
-    printf("Think() was called...\n");
+    philosopherSelected->state = THINKING;
+    printf("Philosopher %d is thinking...\n", philosopherSelected->position);
 }
 
 // Todo:

TestDining.sh

@@ -1,4 +1,4 @@
 #!/bin/bash
 rm DiningPhilosophers.out
 gcc DiningPhilosophers.c -o DiningPhilosophers.out 2> crashCompile.log
-./DiningPhilosophers.out 5 2> crashLaunch.log
+./DiningPhilosophers.out 5 > output.log 2> crashLaunch.log

output.log

@@ -0,0 +1,20 @@
+Philosopher 0 is thinking...
+TakeForks() was called...
+Eat() was called...
+PutForks() was called...
+Philosopher 1 is thinking...
+TakeForks() was called...
+Eat() was called...
+PutForks() was called...
+Philosopher 2 is thinking...
+TakeForks() was called...
+Eat() was called...
+PutForks() was called...
+Philosopher 3 is thinking...
+TakeForks() was called...
+Eat() was called...
+PutForks() was called...
+Philosopher 4 is thinking...
+TakeForks() was called...
+Eat() was called...
+PutForks() was called...