openpilot0/common/statlog.cc

48 lines
1.1 KiB
C++

#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include "common/statlog.h"
#include "common/util.h"
#include <cstdarg>
#include <stdio.h>
#include <mutex>
#include <zmq.h>
class StatlogState : public LogState {
public:
StatlogState() : LogState("ipc:///tmp/stats") {}
};
static StatlogState s = {};
static void log(const char* metric_type, const char* metric, const char* fmt, ...) {
std::lock_guard lk(s.lock);
if (!s.initialized) s.initialize();
char* value_buf = nullptr;
va_list args;
va_start(args, fmt);
int ret = vasprintf(&value_buf, fmt, args);
va_end(args);
if (ret > 0 && value_buf) {
char* line_buf = nullptr;
ret = asprintf(&line_buf, "%s:%s|%s", metric, value_buf, metric_type);
if (ret > 0 && line_buf) {
zmq_send(s.sock, line_buf, ret, ZMQ_NOBLOCK);
free(line_buf);
}
free(value_buf);
}
}
void statlog_log(const char* metric_type, const char* metric, int value) {
log(metric_type, metric, "%d", value);
}
void statlog_log(const char* metric_type, const char* metric, float value) {
log(metric_type, metric, "%f", value);
}