struct BufferPool char Buffer5100;int Index5;; int main int running = 1;void shm = NULL;struct BufferPool shared;int shmid;int index;shmid = shmgetkey_t1234 sizeofstruct BufferPool 0666IPC_CREAT;

#include <stdio.h> #include <stdlib.h> #include <string.h> #include <unistd.h> #include <sys/ipc.h> #include <sys/shm.h> #include <time.h>

struct BufferPool
{
char Buffer[5][100]; int Index[5]; };

int main(){
int running = 1; void shm = NULL; struct BufferPool shared; int shmid; int index; shmid = shmget((key_t)1234, sizeof(struct BufferPool), 0666|IPC_CREAT);
if(shmid == -1){
exit(EXIT_FAILURE); }
shm = shmat(shmid, 0, 0);
if(shm == (void)-1){
exit(EXIT_FAILURE); }
shared = (struct BufferPool)shm;
while(running){ index=0;
if(shared->Index[index]==1){
printf("consume buffer: %s", shared->Buffer[index]);
shared->Index[index] = 0; sleep(rand() % 3);
if(strncmp(shared->Buffer[index], "end", 3) == 0)
running = 0; }
else{
sleep(1); index++; } }
if(shmdt(shm) == -1){ exit(EXIT_FAILURE); }
if(shmctl(shmid, IPC_RMID, 0) == -1){ exit(EXIT_FAILURE); }
exit(EXIT_SUCCESS);