void initiate(char ** argv){
int key2 = ftok("makefile",'e');
//creating
if (strcmp(argv[1], "--create") == 0){
createsharedmem(key2);
createsem(key2);
createfile("story.txt");
printf("INITIATED\n");
}
//removing
else if (strcmp(argv[1], "--remove") == 0) {
//remove the shared memory (we need to remove pointers to memories separately or else shared memory will not disappear)
removesharedmem(key2);
//remove the semaphore
removesem(key2);
//display the file
if (filesize() >0){
int fd;
fd = open("story.txt", O_RDWR | O_APPEND, 0644);
write(fd, "\n",2);
}
//Display the full contents of the story
execlp("cat","cat","story.txt",NULL);
}
else{
printf("INVALID INPUT: Please run control with either '--create' or '--remove'.\n");//
}
}
int removemem(void) {
removesem();
if (shmctl(shmid, IPC_RMID, (struct shmid_ds *) 0) < 0) {
perror("removemem");
return 0;
}
return 1;
}
