Function ServerBacktrace

src/traffic_crashlog/backtrace.cc:174–208

namespace

}
} // namespace
int
ServerBacktrace(unsigned /* options */, int pid, char **trace)
{
  *trace = nullptr;

  threadlist threads(threads_for_process(pid));
  TextBuffer text(0);

  Dbg(dbg_ctl_backtrace, "tracing %zd threads for traffic_server PID %ld\n", threads.size(), (long)pid);

  for (auto threadid : threads) {
    Dbg(dbg_ctl_backtrace, "tracing thread %ld\n", (long)threadid);
    // Get the thread name using /proc/PID/comm
    ats_scoped_fd fd;
    char          threadname[128];

    snprintf(threadname, sizeof(threadname), "/proc/%ld/comm", static_cast<long>(threadid));
    fd = open(threadname, O_RDONLY);
    if (fd >= 0) {
      text.format("Thread %ld, ", static_cast<long>(threadid));
      text.readFromFD(fd);
      text.chomp();
    } else {
      text.format("Thread %ld", static_cast<long>(threadid));
    }

    text.format(":\n");

    backtrace_for_thread(threadid, text);
    text.format("\n");
  }

  *trace = text.release();
  return 0;
}

#else /* TS_USE_REMOTE_UNWINDING */