ods777/system/ubloxd/ubloxd.cc

66 lines
1.7 KiB
C++

#include <cassert>
#include <kaitai/kaitaistream.h>
#include "cereal/messaging/messaging.h"
#include "common/swaglog.h"
#include "common/util.h"
#include "system/ubloxd/ublox_msg.h"
ExitHandler do_exit;
using namespace ublox;
int main() {
LOGW("starting ubloxd");
AlignedBuffer aligned_buf;
UbloxMsgParser parser;
PubMaster pm({"ubloxGnss", "gpsLocationExternal"});
std::unique_ptr<Context> context(Context::create());
std::unique_ptr<SubSocket> subscriber(SubSocket::create(context.get(), "ubloxRaw"));
assert(subscriber != NULL);
subscriber->setTimeout(100);
while (!do_exit) {
std::unique_ptr<Message> msg(subscriber->receive());
if (!msg) {
if (errno == EINTR) {
do_exit = true;
}
continue;
}
capnp::FlatArrayMessageReader cmsg(aligned_buf.align(msg.get()));
cereal::Event::Reader event = cmsg.getRoot<cereal::Event>();
auto ubloxRaw = event.getUbloxRaw();
float log_time = 1e-9 * event.getLogMonoTime();
const uint8_t *data = ubloxRaw.begin();
size_t len = ubloxRaw.size();
size_t bytes_consumed = 0;
while (bytes_consumed < len && !do_exit) {
size_t bytes_consumed_this_time = 0U;
if (parser.add_data(log_time, data + bytes_consumed, (uint32_t)(len - bytes_consumed), bytes_consumed_this_time)) {
try {
auto ublox_msg = parser.gen_msg();
if (ublox_msg.second.size() > 0) {
auto bytes = ublox_msg.second.asBytes();
pm.send(ublox_msg.first.c_str(), bytes.begin(), bytes.size());
}
} catch (const std::exception& e) {
LOGE("Error parsing ublox message %s", e.what());
}
parser.reset();
}
bytes_consumed += bytes_consumed_this_time;
}
}
return 0;
}