Logger: added function logger_get_route_name (#19995)

* added function logger_get_route_name

* remove empty line
old-commit-hash: 1588a6f0acc3a0f80e0ccaa9f621004d90375fea

selfdrive/loggerd/bootlog.cc

@@ -22,16 +22,8 @@ static kj::Array<capnp::word> build_boot_log() {
 }
 
 int main(int argc, char** argv) {
-  char filename[64] = {'\0'};
 
-  time_t rawtime = time(NULL);
-  struct tm timeinfo;
-
-  localtime_r(&rawtime, &timeinfo);
-  strftime(filename, sizeof(filename),
-           "%Y-%m-%d--%H-%M-%S.bz2", &timeinfo);
-
-  std::string path = LOG_ROOT + "/boot/" + std::string(filename);
+  const std::string path = LOG_ROOT + "/boot/" + logger_get_route_name() + ".bz2";
   LOGW("bootlog to %s", path.c_str());
 
   // Open bootlog

selfdrive/loggerd/logger.cc

@@ -118,6 +118,15 @@ kj::Array<capnp::word> logger_build_init_data() {
   return capnp::messageToFlatArray(msg);
 }
 
+std::string logger_get_route_name() {
+  char route_name[64] = {'\0'};
+  time_t rawtime = time(NULL);
+  struct tm timeinfo;
+  localtime_r(&rawtime, &timeinfo);
+  strftime(route_name, sizeof(route_name), "%Y-%m-%d--%H-%M-%S", &timeinfo);
+  return route_name;
+}
+
 void log_init_data(LoggerState *s) {
   auto bytes = s->init_data.asBytes();
   logger_log(s, bytes.begin(), bytes.size(), s->has_qlog);
@@ -142,15 +151,8 @@ void logger_init(LoggerState *s, const char* log_name, bool has_qlog) {
 
   s->part = -1;
   s->has_qlog = has_qlog;
-
-  time_t rawtime = time(NULL);
-  struct tm timeinfo;
-  localtime_r(&rawtime, &timeinfo);
-
-  strftime(s->route_name, sizeof(s->route_name),
-           "%Y-%m-%d--%H-%M-%S", &timeinfo);
+  s->route_name = logger_get_route_name();
   snprintf(s->log_name, sizeof(s->log_name), "%s", log_name);
-
   s->init_data = logger_build_init_data();
 }
 
@@ -167,7 +169,7 @@ static LoggerHandle* logger_open(LoggerState *s, const char* root_path) {
   assert(h);
 
   snprintf(h->segment_path, sizeof(h->segment_path),
-          "%s/%s--%d", root_path, s->route_name, s->part);
+          "%s/%s--%d", root_path, s->route_name.c_str(), s->part);
 
   snprintf(h->log_path, sizeof(h->log_path), "%s/%s.bz2", h->segment_path, s->log_name);
   snprintf(h->qlog_path, sizeof(h->qlog_path), "%s/qlog.bz2", h->segment_path);

selfdrive/loggerd/logger.h

@@ -65,7 +65,7 @@ typedef struct LoggerState {
   pthread_mutex_t lock;
   int part;
   kj::Array<capnp::word> init_data;
-  char route_name[64];
+  std::string route_name;
   char log_name[64];
   bool has_qlog;
 
@@ -75,6 +75,7 @@ typedef struct LoggerState {
 
 int logger_mkpath(char* file_path);
 kj::Array<capnp::word> logger_build_init_data();
+std::string logger_get_route_name();
 void logger_init(LoggerState *s, const char* log_name, bool has_qlog);
 int logger_next(LoggerState *s, const char* root_path,
                             char* out_segment_path, size_t out_segment_path_len,