Consider the producer-consumer problem where the producer produces items to be consumed by the consumer. A solution of the problem is to be implemented using threads. The main process will run producer and consumer as two different threads. The producer will put the items it generates into a buffer of length 15. The consumer reads the elements of the buffer to get the items. A solution is given below. Each item produced and consumed are also printed to the screen. Run the program several times and find a sample run when the items produced are not correctly consumed. Explain why the program does not always work correctly.
Consider the producer-consumer problem where the producer produces items to be consumed by the consumer. A solution of the problem is to be implemented using threads. The main process will run producer and consumer as two different threads. The producer will put the items it generates into a buffer of length 15. The consumer reads the elements of the buffer to get the items. A solution is given below. Each item produced and consumed are also printed to the screen. Run the program several times and find a sample run when the items produced are not correctly consumed. Explain why the program does not always work correctly.
Computer Networking: A Top-Down Approach (7th Edition)
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Transcribed Image Text:Consider the producer-consumer problem where the producer produces items to be consumed by the
consumer. A solution of the problem is to be implemented using threads. The main process will run
producer and consumer as two different threads. The producer will put the items it generates into a
buffer of length 15. The consumer reads the elements of the buffer to get the items. A solution is
given below. Each item produced and consumed are also printed to the screen. Run the program
several times and find a sample run when the items produced are not correctly consumed. Explain
why the program does not always work correctly.
![#include <gtdia.h>
#include <stdlib.h
#include <pthread.h>
m
int buffer [15]
{0};
int in =0, out = 0;
void *Producer ()//
{
int nextR:
w wo
for (int i=0;i<15;i++) {
//produce an item
nextp = 2 *3+i;
buffer [in] =
printf("The producer produced the item = %d\n",nextp);
in = (in+1);
nextp;
wwww
}
}
void *Consumer () / /
{
int nextsi
for (int i-0;i<15;i++) {
nextc = buffer[out];
printf("The consumer consumed the item = %d\n",nextc);
out = (out+1);
}
}
void main ()
{
Rthread t threadl;
Rthrsad.t thread2;
gthread create (&threadl, NULL, Producer, NULL);
gthread create (&thread2, NULL, Consumer, NULL);
pthread join (thread1,NULL);
pthread join (thread2, NULL);
exit (0) ;
}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F695d2234-b6de-45f4-a5b2-a087c7d4312b%2Fd7bdd6b4-0cde-499a-a64f-7c26b52df130%2Fjlpvaj4_processed.png&w=3840&q=75)
Transcribed Image Text:#include <gtdia.h>
#include <stdlib.h
#include <pthread.h>
m
int buffer [15]
{0};
int in =0, out = 0;
void *Producer ()//
{
int nextR:
w wo
for (int i=0;i<15;i++) {
//produce an item
nextp = 2 *3+i;
buffer [in] =
printf("The producer produced the item = %d\n",nextp);
in = (in+1);
nextp;
wwww
}
}
void *Consumer () / /
{
int nextsi
for (int i-0;i<15;i++) {
nextc = buffer[out];
printf("The consumer consumed the item = %d\n",nextc);
out = (out+1);
}
}
void main ()
{
Rthread t threadl;
Rthrsad.t thread2;
gthread create (&threadl, NULL, Producer, NULL);
gthread create (&thread2, NULL, Consumer, NULL);
pthread join (thread1,NULL);
pthread join (thread2, NULL);
exit (0) ;
}
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