Created
August 27, 2011 21:54
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#include <sys/types.h> | |
#include <sys/ipc.h> | |
#include <sys/sem.h> | |
#include <sys/shm.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <errno.h> | |
#define BUFFER_SIZE 5 | |
#define EMPTY_ID 0 | |
#define FULL_ID 1 | |
#define MUTEX_ID 2 | |
#define NSEM_SIZE 3 | |
#define SHM_KEY 9 | |
#define SEM_KEY "." | |
static struct sembuf downEmpty = { EMPTY_ID, -1, 0 }; | |
static struct sembuf upEmpty = { EMPTY_ID, 1, 0 }; | |
static struct sembuf upFull = { FULL_ID, 1, 0 }; | |
static struct sembuf downFull = { FULL_ID, -1, 0 }; | |
static struct sembuf downMutex = { MUTEX_ID, -1, 0 }; | |
static struct sembuf upMutex = { MUTEX_ID, 1, 0 }; | |
int *create_shared_mem_buffer(); | |
int create_semaphore_set(); | |
int get_buffer_size(int *sbuff); | |
void clear_buffer(int *sbuf); |
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