semget
int semget(key_t key, int numSems, int semFlags);
int returnedID = semget(KEY, 0, 0);
int semID = semget(KEY, NUM_OF_SEMS, IPC_CREAT | IPC_EXCL | S_IRUSR | S_IWUSR
int semID = semget(KEY, NUM_OF_SEMS, IPC_CREAT | IPC_EXCL | S_IRUSR | S_IWUSR
int semID = semget(IPC_PRIVATE, NUM_OF_SEMS, S_IRUSR | S_IWUSR);
semID = semget(KEY, NUM_OF_SEMS, IPC_CREAT | IPC_EXCL | S_IRUSR | S_IWUSR
int returnID = semget(KEY, 0, 0);
returnID = semget(KEY, 0, IPC_CREAT | IPC_EXCL);
semID = semget(KEY, NUM_OF_SEMS, IPC_EXCL | S_IRUSR | S_IWUSR