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#define DLT_SHM_KEY 11771
#define DLT_SHM_SIZE (1024*4000)
#define DLT_SHM_SEM 22771
typedef struct
{
int shmid; // Id of shared memory
int semid; // Id of semaphore
char* shm; // pointer to beginning of shared memory
int size; // size of data areay in shared memory
char* mem; // pointer to data area in shared memory
} DltShm;
#define DLT_SHM_SEM_GET(id) dlt_shm_pv(id,-1)
#define DLT_SHM_SEM_FREE(id) dlt_shm_pv(id,1)
extern int dlt_shm_init_client(DltShm *buf,int key);
extern int dlt_shm_init_server(DltShm *buf,int key,int size);
extern int dlt_shm_push(DltShm *buf,const char *data1, int size1,const char *data2, int size2,const char *data3, int size3);
extern int dlt_shm_pull(DltShm *buf,char *data, int size);
extern void dlt_shm_info(DltShm *buf);
extern void dlt_shm_status(DltShm *buf);
extern int dlt_shm_free_client(DltShm *buf);
extern int dlt_shm_free_server(DltShm *buf);
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