openpilot is an open source driver assistance system. openpilot performs the functions of Automated Lane Centering and Adaptive Cruise Control for over 200 supported car makes and models.
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#include <assert.h>
#include <string>
#include "common/swaglog.h"
#include "common/util.h"
#include "logger.h"
#include "messaging.hpp"
int main(int argc, char** argv) {
LoggerState logger;
logger_init(&logger, "bootlog", false);
char segment_path[4096];
int err = logger_next(&logger, LOG_ROOT.c_str(), segment_path, sizeof(segment_path), nullptr);
assert(err == 0);
LOGW("bootlog to %s", segment_path);
MessageBuilder msg;
auto boot = msg.initEvent().initBoot();
boot.setWallTimeNanos(nanos_since_epoch());
std::string lastKmsg = util::read_file("/sys/fs/pstore/console-ramoops");
boot.setLastKmsg(capnp::Data::Reader((const kj::byte*)lastKmsg.data(), lastKmsg.size()));
std::string lastPmsg = util::read_file("/sys/fs/pstore/pmsg-ramoops-0");
boot.setLastPmsg(capnp::Data::Reader((const kj::byte*)lastPmsg.data(), lastPmsg.size()));
std::string launchLog = util::read_file("/tmp/launch_log");
boot.setLaunchLog(capnp::Text::Reader(launchLog.data(), launchLog.size()));
auto bytes = msg.toBytes();
logger_log(&logger, bytes.begin(), bytes.size(), false);
logger_close(&logger);
return 0;
}