Method open

lib_acl_cpp/src/stream/polarssl_io.cpp:283–394

#endif

bool polarssl_io::open(ACL_VSTREAM* s)
{
	if (s == NULL) {
		logger_error("s null");
		return false;
	}

#ifdef HAS_POLARSSL
	// ��ֹ�ظ����� open ����
	if (ssl_ != NULL) {
		// �����ͬһ�������򷵻� true
		if (stream_ == s) {
			return true;
		} else if (ACL_VSTREAM_SOCK(stream_) == ACL_VSTREAM_SOCK(s)) {
			long long n = ++(*refers_);
			logger_warn("used by multiple stream, refers=%lld", n);
			return true;
		}

		// ���򣬽�ֹͬһ�� SSL IO ���󱻰��ڲ�ͬ����������
		logger_error("open again, stream_ changed!");
		return false;
	}

	stream_ = s;
	++(*refers_);

	ssl_ = acl_mycalloc(1, sizeof(ssl_context));

	int ret;

	// ��ʼ�� SSL ����
	if ((ret = __ssl_init((ssl_context*) ssl_)) != 0) {
		logger_error("failed, ssl_init error: -0x%04x\n", -ret);
		acl_myfree(ssl_);
		ssl_ = NULL;
		return false;
	}

	// ��Ҫ���� SSL �����ǿͻ���ģʽ���Ƿ�����ģʽ
	if (server_side_) {
		__ssl_set_endpoint((ssl_context*) ssl_, SSL_IS_SERVER);
	} else {
		__ssl_set_endpoint((ssl_context*) ssl_, SSL_IS_CLIENT);
	}

	// ��ʼ����������ɹ���

# ifdef HAS_HAVEGE
	rnd_ = acl_mymalloc(sizeof(havege_state));
	__havege_init((havege_state*) rnd_);

	// ���������������
	__ssl_set_rng((ssl_context*) ssl_, __havege_random, rnd_);
# else
	rnd_ = acl_mymalloc(sizeof(ctr_drbg_context));

	char pers[50];