static int
tnt_log_process_xlog(struct tnt_log *l, char *buf, uint32_t size,
union tnt_log_value *value)
{
(void)size;
/* copying row data */
memcpy(&l->current.row, buf, sizeof(l->current.row));
/* preparing pseudo iproto header */
struct tnt_header hdr_iproto;
hdr_iproto.type = l->current.row.op;
hdr_iproto.len = l->current.hdr.len - sizeof(l->current.row);
hdr_iproto.reqid = 0;
/* deserializing operation */
tnt_request_init(&value->r);
size_t off = 0;
int rc = tnt_request(&value->r,
buf + sizeof(l->current.row),
l->current.hdr.len - sizeof(l->current.row),
&off,
&hdr_iproto);
/* in case of not completed request or parsing error */
if (rc != 0)
return tnt_log_seterr(l, TNT_LOG_ECORRUPT);
return 0;
}
static int tnt_iter_request_next(struct tnt_iter *i) {
struct tnt_iter_request *ir = TNT_IREQUEST(i);
tnt_request_free(&ir->r);
tnt_request_init(&ir->r);
int rc = ir->s->read_request(ir->s, &ir->r);
if (rc == -1) {
i->status = TNT_ITER_FAIL;
return 0;
}
return (rc == 1 /* finish */ ) ? 0 : 1;
}
/*
* tnt_iter_request()
*
* initialize tuple request iterator;
* create and initialize request iterator;
*
* i - tuple request iterator pointer, maybe NULL
* s - stream pointer
*
* if stream iterator pointer is NULL, then new stream
* iterator will be created.
*
* returns stream iterator pointer, or NULL on error.
*/
struct tnt_iter *tnt_iter_request(struct tnt_iter *i, struct tnt_stream *s) {
i = tnt_iter_init(i);
if (i == NULL)
return NULL;
i->type = TNT_ITER_REQUEST;
i->next = tnt_iter_request_next;
i->rewind = NULL;
i->free = tnt_iter_request_free;
struct tnt_iter_request *ir = TNT_IREQUEST(i);
ir->s = s;
tnt_request_init(&ir->r);
return i;
}
