Method fsync

lib/cpp/test/TFileTransportTest.cpp:69–74

  FsyncLog() = default;

  void fsync(int fd) {
    FsyncCall call;
    call.fd = fd;
    THRIFT_GETTIMEOFDAY(&call.time, nullptr);
    calls_.push_back(call);
  }

  const CallList* getCalls() const { return &calls_; }