LXXXVIII. Semaphore and Shared Memory Functions

Table of Contents
sem_get -- Get a semaphore id
sem_acquire -- Acquire a semaphore
sem_release -- Release a semaphore
sem_remove -- Remove a semaphore
shm_attach -- Creates or open a shared memory segment
shm_detach -- Disconnects from shared memory segment
shm_remove -- Removes shared memory from Unix systems
shm_put_var -- Inserts or updates a variable in shared memory
shm_get_var -- Returns a variable from shared memory
shm_remove_var -- Removes a variable from shared memory
ftok --  Convert a pathname and a project identifier to a System V IPC key