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 <sys/time.h>
#include <sys/resource.h>
#include <android/log.h>
#include <log/logger.h>
#include <log/logprint.h>
#include "cereal/messaging/messaging.h"
#include "selfdrive/common/util.h"
int main() {
setpriority(PRIO_PROCESS, 0, -15);
ExitHandler do_exit;
PubMaster pm({"androidLog"});
log_time last_log_time = {};
logger_list *logger_list = android_logger_list_alloc(ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, 0, 0);
while (!do_exit) {
// setup android logging
if (!logger_list) {
logger_list = android_logger_list_alloc_time(ANDROID_LOG_RDONLY | ANDROID_LOG_NONBLOCK, last_log_time, 0);
}
assert(logger_list);
struct logger *main_logger = android_logger_open(logger_list, LOG_ID_MAIN);
assert(main_logger);
struct logger *radio_logger = android_logger_open(logger_list, LOG_ID_RADIO);
assert(radio_logger);
struct logger *system_logger = android_logger_open(logger_list, LOG_ID_SYSTEM);
assert(system_logger);
struct logger *crash_logger = android_logger_open(logger_list, LOG_ID_CRASH);
assert(crash_logger);
struct logger *kernel_logger = android_logger_open(logger_list, (log_id_t)5); // LOG_ID_KERNEL
assert(kernel_logger);
while (!do_exit) {
log_msg log_msg;
int err = android_logger_list_read(logger_list, &log_msg);
if (err <= 0) break;
AndroidLogEntry entry;
err = android_log_processLogBuffer(&log_msg.entry_v1, &entry);
if (err < 0) continue;
last_log_time.tv_sec = entry.tv_sec;
last_log_time.tv_nsec = entry.tv_nsec;
MessageBuilder msg;
auto androidEntry = msg.initEvent().initAndroidLog();
androidEntry.setId(log_msg.id());
androidEntry.setTs(entry.tv_sec * 1000000000ULL + entry.tv_nsec);
androidEntry.setPriority(entry.priority);
androidEntry.setPid(entry.pid);
androidEntry.setTid(entry.tid);
androidEntry.setTag(entry.tag);
androidEntry.setMessage(entry.message);
pm.send("androidLog", msg);
}
android_logger_list_free(logger_list);
logger_list = NULL;
util::sleep_for(500);
}
if (logger_list) {
android_logger_list_free(logger_list);
}
return 0;
}