dm_ulog_request
struct dm_ulog_request *tfr = (struct dm_ulog_request *)(msg + 1);
int overhead_size = sizeof(struct dm_ulog_request) + sizeof(struct cn_msg);
struct dm_ulog_request *tfr = prealloced_ulog_tfr;
static struct dm_ulog_request *prealloced_ulog_tfr;
static int dm_ulog_sendto_server(struct dm_ulog_request *tfr)
msg->len = sizeof(struct dm_ulog_request) + tfr->data_size;
static int fill_pkg(struct cn_msg *msg, struct dm_ulog_request *tfr)