text: /*************************************************************************/
  /*  emws_peer.h                                                          */
  /*************************************************************************/
  /*                       This file is part of:                           */
  /*                           GODOT ENGINE                                */
  /*                      https://godotengine.org                          */
  /*************************************************************************/
  /* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur.                 */
  /* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md).   */
  /*                                                                       */
  /* Permission is hereby granted, free of charge, to any person obtaining */
  /* a copy of this software and associated documentation files (the       */
  /* "Software"), to deal in the Software without restriction, including   */
  /* without limitation the rights to use, copy, modify, merge, publish,   */
  /* distribute, sublicense, and/or sell copies of the Software, and to    */
  /* permit persons to whom the Software is furnished to do so, subject to */
  /* the following conditions:                                             */
  /*                                                                       */
  /* The above copyright notice and this permission notice shall be        */
  /* included in all copies or substantial portions of the Software.       */
  /*                                                                       */
  /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
  /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
  /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
  /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
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  /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
  /*************************************************************************/
  
  #ifndef EMWSPEER_H
  #define EMWSPEER_H
  
  #ifdef JAVASCRIPT_ENABLED
  
  #include "core/error_list.h"
  #include "core/io/packet_peer.h"
  #include "core/ring_buffer.h"
  #include "emscripten.h"
  #include "packet_buffer.h"
  #include "websocket_peer.h"
  
  extern "C" {
  typedef void (*WSOnOpen)(void *p_ref, char *p_protocol);
  typedef void (*WSOnMessage)(void *p_ref, const uint8_t *p_buf, int p_buf_len, int p_is_string);
  typedef void (*WSOnClose)(void *p_ref, int p_code, const char *p_reason, int p_is_clean);
  typedef void (*WSOnError)(void *p_ref);
  
  extern int godot_js_websocket_create(void *p_ref, const char *p_url, const char *p_proto, WSOnOpen p_on_open, WSOnMessage p_on_message, WSOnError p_on_error, WSOnClose p_on_close);
  extern int godot_js_websocket_send(int p_id, const uint8_t *p_buf, int p_buf_len, int p_raw);
  extern void godot_js_websocket_close(int p_id, int p_code, const char *p_reason);
  extern void godot_js_websocket_destroy(int p_id);
  }
  
  class EMWSPeer : public WebSocketPeer {
  
  	GDCIIMPL(EMWSPeer, WebSocketPeer);
  
  private:
  	int peer_sock;
  	WriteMode write_mode;
  
  	PoolVector<uint8_t> _packet_buffer;
  	PacketBuffer<uint8_t> _in_buffer;
  	uint8_t _is_string;
  
  public:
  	Error read_msg(const uint8_t *p_data, uint32_t p_size, bool p_is_string);
  	void set_sock(int p_sock, unsigned int p_in_buf_size, unsigned int p_in_pkt_size);
  	virtual int get_available_packet_count() const;
  	virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size);
  	virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);
  	virtual int get_max_packet_size() const { return _packet_buffer.size(); };
  
  	virtual void close(int p_code = 1000, String p_reason = "");
  	virtual bool is_connected_to_host() const;
  	virtual IP_Address get_connected_host() const;
  	virtual uint16_t get_connected_port() const;
  
  	virtual WriteMode get_write_mode() const;
  	virtual void set_write_mode(WriteMode p_mode);
  	virtual bool was_string_packet() const;
  	virtual void set_no_delay(bool p_enabled);
  
  	EMWSPeer();
  	~EMWSPeer();
  };
  
  #endif // JAVASCRIPT_ENABLED
  
  #endif // LSWPEER_H
  