Computers and Technology, 09.04.2020 22:03 GladToBeACarmine
Using this Skeleton Code, what is the correct code to run the dining philosophers program?
#include
#include
#include
#include
#include
#define NUMP 5
pthread_mutex_t fork_mutex[NUMP];
int main(int argc, char* argv[])
{
int i;
pthread_t diner_thread[NUMP];
int dn[NUMP];
void *diner();
for (i=0;i pthread_mutex_init(&fork_mutex[ i], NULL);
for (i=0;i dn[i] = i;
pthread_create(&diner_thread[i] ,NULL, diner,&dn[i]);
}
for (i=0;i pthread_join(diner_thread[i],NULL);
pthread_exit(0);
}
void *diner(int *i)
{
int v;
int eating = 0;
printf("I'm diner %d\n",*i);
v = *i;
while (eating < 5) {
printf("%d is thinking\n", v);
sleep( v/2);
printf("%d is hungry\n", v);
pthread_mutex_lock(&fork_mutex[ v]);
pthread_mutex_lock(&fork_mutex[ (v+1)%NUMP]);
printf("%d is eating\n", v);
eating++;
sleep(1);
printf("%d is done eating\n", v);
pthread_mutex_unlock(&fork_mute x[(v+1)%NUMP]);
pthread_mutex_unlock(&fork_mute x[v]);
}
pthread_exit(NULL);
}
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Using this Skeleton Code, what is the correct code to run the dining philosophers program?
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