823 int     smem_open(char *filename, int rwmode, int *driverhandle)  in smem_open()  argument
829    if (NULL == driverhandle) return(SHARED_NULPTR);  in smem_open()
848    *driverhandle = h;  in smem_open()
853 int     smem_create(char *filename, int *driverhandle)  in smem_create()  argument
858    if (NULL == driverhandle) return(SHARED_NULPTR);  in smem_create()
876    *driverhandle = h;  in smem_create()
882 int     smem_close(int driverhandle)  in smem_close()  argument
885    if (SHARED_OK != (r = shared_unlock(driverhandle))) return(r);  in smem_close()
886    return(shared_free(driverhandle));  in smem_close()
913 int     smem_size(int driverhandle, LONGLONG *size)  in smem_size()  argument
916    if (shared_check_locked_index(driverhandle)) return(SHARED_INVALID);  in smem_size()
917    *size = (LONGLONG) (shared_gt[driverhandle].size - sizeof(DAL_SHM_SEGHEAD));  in smem_size()
921 int     smem_flush(int driverhandle)  in smem_flush()  argument
923    if (shared_check_locked_index(driverhandle)) return(SHARED_INVALID);  in smem_flush()
927 int     smem_seek(int driverhandle, LONGLONG offset)  in smem_seek()  argument
930    if (shared_check_locked_index(driverhandle)) return(SHARED_INVALID);  in smem_seek()
931    shared_lt[driverhandle].seekpos = offset;  in smem_seek()
935 int     smem_read(int driverhandle, void *buffer, long nbytes)  in smem_read()  argument
938    if (shared_check_locked_index(driverhandle)) return(SHARED_INVALID);  in smem_read()
940    if ((shared_lt[driverhandle].seekpos + nbytes) > shared_gt[driverhandle].size)  in smem_read()
944           ((char *)(((DAL_SHM_SEGHEAD *)(shared_lt[driverhandle].p + 1)) + 1)) +  in smem_read()
945                 shared_lt[driverhandle].seekpos,  in smem_read()
948    shared_lt[driverhandle].seekpos += nbytes;  in smem_read()
952 int     smem_write(int driverhandle, void *buffer, long nbytes)  in smem_write()  argument
955    if (shared_check_locked_index(driverhandle)) return(SHARED_INVALID);  in smem_write()
956    if (-1 != shared_lt[driverhandle].lkcnt) return(SHARED_INVALID); /* are we locked RW ? */  in smem_write()
959 …if ((unsigned long)(shared_lt[driverhandle].seekpos + nbytes) > (unsigned long)(shared_gt[driverha…  in smem_write()
961 …if (NULL == shared_realloc(driverhandle, shared_lt[driverhandle].seekpos + nbytes + sizeof(DAL_SHM…  in smem_write()
965    memcpy(((char *)(((DAL_SHM_SEGHEAD *)(shared_lt[driverhandle].p + 1)) + 1)) +  in smem_write()
966                 shared_lt[driverhandle].seekpos,  in smem_write()
970    shared_lt[driverhandle].seekpos += nbytes;  in smem_write()