Class sigaction

security/tls_socket-test.cc:220–220

TEST_F(TlsSocketTest, TestTlsSocketInterrupted) {
  // Set up a no-op signal handler for SIGUSR2.
  struct sigaction sa, sa_old;
  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = &handler;
  sigaction(SIGUSR2, &sa, &sa_old);