text: /*************************************************************************/
  /*  stream_peer_mbed_tls.h                                               */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2019 Godot Engine contributors (cf. AUTHORS.md)    */
  /*                                                                       */
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  /*                                                                       */
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  /*************************************************************************/
  
  #ifndef STREAM_PEER_OPEN_SSL_H
  #define STREAM_PEER_OPEN_SSL_H
  
  #include "core/io/stream_peer_ssl.h"
  #include "ssl_context_mbedtls.h"
  
  class StreamPeerMbedTLS : public StreamPeerSSL {
  private:
  	Status status;
  	String hostname;
  
  	Ref<StreamPeer> base;
  
  	static StreamPeerSSL *_create_func();
  
  	static int bio_recv(void *ctx, unsigned char *buf, size_t len);
  	static int bio_send(void *ctx, const unsigned char *buf, size_t len);
  	void _cleanup();
  
  protected:
  	Ref<SSLContextMbedTLS> ssl_ctx;
  
  	static void _bind_methods();
  
  	Error _do_handshake();
  
  public:
  	virtual void poll();
  	virtual Error accept_stream(Ref<StreamPeer> p_base, Ref<CryptoKey> p_key, Ref<X509Certificate> p_cert, Ref<X509Certificate> p_ca_chain = Ref<X509Certificate>());
  	virtual Error connect_to_stream(Ref<StreamPeer> p_base, bool p_validate_certs = false, const String &p_for_hostname = String(), Ref<X509Certificate> p_valid_cert = Ref<X509Certificate>());
  	virtual Status get_status() const;
  
  	virtual void disconnect_from_stream();
  
  	virtual Error put_data(const uint8_t *p_data, int p_bytes);
  	virtual Error put_partial_data(const uint8_t *p_data, int p_bytes, int &r_sent);
  
  	virtual Error get_data(uint8_t *p_buffer, int p_bytes);
  	virtual Error get_partial_data(uint8_t *p_buffer, int p_bytes, int &r_received);
  
  	virtual int get_available_bytes() const;
  
  	static void initialize_ssl();
  	static void finalize_ssl();
  
  	StreamPeerMbedTLS();
  	~StreamPeerMbedTLS();
  };
  
  #endif // STREAM_PEER_SSL_H
  