1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
/**************************************************************************/
/*  emws_peer.h                                                           */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* 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   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#ifndef EMWS_PEER_H
#define EMWS_PEER_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 int godot_js_websocket_buffered_amount(int p_id);
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;
	int _out_buf_size;

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, unsigned int p_out_buf_size);
	virtual int get_available_packet_count() const;<--- Function in derived class
	virtual Error get_packet(const uint8_t **r_buffer, int &r_buffer_size);<--- Function in derived class
	virtual Error put_packet(const uint8_t *p_buffer, int p_buffer_size);<--- Function in derived class
	virtual int get_max_packet_size() const { return _packet_buffer.size(); };<--- Function in derived class
	virtual int get_current_outbound_buffered_amount() const;<--- Function in derived class

	virtual void close(int p_code = 1000, String p_reason = "");<--- Function in derived class<--- close is a virtual function<--- close is a virtual function
	virtual bool is_connected_to_host() const;<--- Function in derived class
	virtual IP_Address get_connected_host() const;<--- Function in derived class
	virtual uint16_t get_connected_port() const;<--- Function in derived class

	virtual WriteMode get_write_mode() const;<--- Function in derived class
	virtual void set_write_mode(WriteMode p_mode);<--- Function in derived class
	virtual bool was_string_packet() const;<--- Function in derived class
	virtual void set_no_delay(bool p_enabled);<--- Function in derived class

	EMWSPeer();
	~EMWSPeer();
};

#endif // JAVASCRIPT_ENABLED

#endif // EMWS_PEER_H