Method peek

lib/cpp/src/thrift/transport/TSSLSocket.cpp:306–345

* Note: This method is not libevent safe. */

 * Note: This method is not libevent safe.
*/
bool TSSLSocket::peek() {
  if (!isOpen()) {
    return false;
  }
  initializeHandshake();
  if (!checkHandshake())
    throw TSSLException("SSL_peek: Handshake is not completed");
  int rc;
  do {
    uint8_t byte;
    rc = SSL_peek(ssl_, &byte, 1);
    if (rc < 0) {
      int errno_copy = THRIFT_GET_SOCKET_ERROR;
      int error = SSL_get_error(ssl_, rc);
      switch (error) {
        case SSL_ERROR_SYSCALL:
          if ((errno_copy != THRIFT_EINTR)
              && (errno_copy != THRIFT_EAGAIN)) {
            break;
          }
        // fallthrough
        case SSL_ERROR_WANT_READ:
        case SSL_ERROR_WANT_WRITE:
          // in the case of SSL_ERROR_SYSCALL we want to wait for an read event again
          waitForEvent(error != SSL_ERROR_WANT_WRITE);
          continue;
        default:;// do nothing
      }
      string errors;
      buildErrors(errors, errno_copy, error);
      throw TSSLException("SSL_peek: " + errors);
    } else if (rc == 0) {
      ERR_clear_error();
      break;
    } else {
      break;
    }
  } while (true);
  return (rc > 0);
}

void TSSLSocket::open() {
  if (isOpen() || server()) {