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 "swaglog.h"
#include <assert.h>
#include <string.h>
#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 LogState {
public:
LogState() = default;
~LogState();
std::mutex lock;
bool inited;
json11::Json::object ctx_j;
void *zctx;
void *sock;
int print_level;
};
LogState::~LogState() {
zmq_close(sock);
zmq_ctx_destroy(zctx);
}
static LogState s = {};
static void cloudlog_bind_locked(const char* k, const char* v) {
s.ctx_j[k] = v;
}
static void cloudlog_init() {
if (s.inited) return;
s.ctx_j = json11::Json::object {};
s.zctx = zmq_ctx_new();
s.sock = zmq_socket(s.zctx, ZMQ_PUSH);
int timeout = 100; // 100 ms timeout on shutdown for messages to be received by logmessaged
zmq_setsockopt(s.sock, ZMQ_LINGER, &timeout, sizeof(timeout));
zmq_connect(s.sock, "ipc:///tmp/logmessage");
s.print_level = CLOUDLOG_WARNING;
const char* print_level = getenv("LOGPRINT");
if (print_level) {
if (strcmp(print_level, "debug") == 0) {
s.print_level = CLOUDLOG_DEBUG;
} else if (strcmp(print_level, "info") == 0) {
s.print_level = CLOUDLOG_INFO;
} else if (strcmp(print_level, "warning") == 0) {
s.print_level = CLOUDLOG_WARNING;
}
}
// openpilot bindings
char* dongle_id = getenv("DONGLE_ID");
if (dongle_id) {
cloudlog_bind_locked("dongle_id", dongle_id);
}
cloudlog_bind_locked("version", COMMA_VERSION);
s.ctx_j["dirty"] = !getenv("CLEAN");
// device type
if (Hardware::EON()) {
cloudlog_bind_locked("device", "eon");
} else if (Hardware::TICI()) {
cloudlog_bind_locked("device", "tici");
} else {
cloudlog_bind_locked("device", "pc");
}
s.inited = true;
}
void log(int levelnum, const char* filename, int lineno, const char* func, const char* msg, const std::string& log_s) {
std::lock_guard lk(s.lock);
cloudlog_init();
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);
}
void cloudlog_e(int levelnum, const char* filename, int lineno, const char* func,
const char* fmt, ...) {
char* msg_buf = nullptr;
va_list args;
va_start(args, fmt);
vasprintf(&msg_buf, fmt, args);
va_end(args);
if (!msg_buf) return;
json11::Json log_j = json11::Json::object {
{"msg", msg_buf},
{"ctx", s.ctx_j},
{"levelnum", levelnum},
{"filename", filename},
{"lineno", lineno},
{"funcname", func},
{"created", seconds_since_epoch()}
};
std::string log_s = log_j.dump();
log(levelnum, filename, lineno, func, msg_buf, log_s);
free(msg_buf);
}
void cloudlog_bind(const char* k, const char* v) {
std::lock_guard lk(s.lock);
cloudlog_init();
cloudlog_bind_locked(k, v);
}