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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#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "selfdrive/common/swaglog.h"
#include <cassert>
#include <cstring>
#include <mutex>
#include <string>
#include <zmq.h>
#include "json11.hpp"
#include "selfdrive/common/util.h"
#include "selfdrive/common/version.h"
#include "selfdrive/hardware/hw.h"
class SwaglogState : public LogState {
public:
SwaglogState() : LogState("ipc:///tmp/logmessage") {}
bool initialized = false;
json11::Json::object ctx_j;
inline void initialize() {
ctx_j = json11::Json::object {};
print_level = CLOUDLOG_WARNING;
const char* print_lvl = getenv("LOGPRINT");
if (print_lvl) {
if (strcmp(print_lvl, "debug") == 0) {
print_level = CLOUDLOG_DEBUG;
} else if (strcmp(print_lvl, "info") == 0) {
print_level = CLOUDLOG_INFO;
} else if (strcmp(print_lvl, "warning") == 0) {
print_level = CLOUDLOG_WARNING;
}
}
// openpilot bindings
char* dongle_id = getenv("DONGLE_ID");
if (dongle_id) {
ctx_j["dongle_id"] = dongle_id;
}
char* daemon_name = getenv("MANAGER_DAEMON");
if (daemon_name) {
ctx_j["daemon"] = daemon_name;
}
ctx_j["version"] = COMMA_VERSION;
ctx_j["dirty"] = !getenv("CLEAN");
// device type
if (Hardware::EON()) {
ctx_j["device"] = "eon";
} else if (Hardware::TICI()) {
ctx_j["device"] = "tici";
} else {
ctx_j["device"] = "pc";
}
initialized = true;
}
};
static SwaglogState s = {};
bool LOG_TIMESTAMPS = getenv("LOG_TIMESTAMPS");
static void log(int levelnum, const char* filename, int lineno, const char* func, const char* msg, const std::string& log_s) {
if (levelnum >= s.print_level) {
printf("%s: %s\n", filename, msg);
}
char levelnum_c = levelnum;
zmq_send(s.sock, (levelnum_c + log_s).c_str(), log_s.length() + 1, ZMQ_NOBLOCK);
}
static void cloudlog_common(int levelnum, bool is_timestamp, const char* filename, int lineno, const char* func,
const char* fmt, va_list args) {
char* msg_buf = nullptr;
int ret = vasprintf(&msg_buf, fmt, args);
if (ret <= 0 || !msg_buf) return;
std::lock_guard lk(s.lock);
if (!s.initialized) s.initialize();
json11::Json::object log_j = json11::Json::object {
{"ctx", s.ctx_j},
{"levelnum", levelnum},
{"filename", filename},
{"lineno", lineno},
{"funcname", func},
{"created", seconds_since_epoch()}
};
if (is_timestamp) {
json11::Json::object tspt_j = json11::Json::object {
{"timestamp", json11::Json::object{
{"event", msg_buf},
{"time", std::to_string(nanos_since_boot())}}
}
};
log_j["msg"] = tspt_j;
} else {
log_j["msg"] = msg_buf;
}
std::string log_s = ((json11::Json)log_j).dump();
log(levelnum, filename, lineno, func, msg_buf, log_s);
free(msg_buf);
}
void cloudlog_e(int levelnum, const char* filename, int lineno, const char* func,
const char* fmt, ...){
va_list args;
va_start(args, fmt);
cloudlog_common(levelnum, false, filename, lineno, func, fmt, args);
va_end(args);
}
void cloudlog_t(int levelnum, const char* filename, int lineno, const char* func,
const char* fmt, ...){
if (!LOG_TIMESTAMPS) return;
va_list args;
va_start(args, fmt);
cloudlog_common(levelnum, true, filename, lineno, func, fmt, args);
va_end(args);
}