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
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
/*************************************************************************/
/* udp_server.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 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 */
/* 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. */
/*************************************************************************/
#include "udp_server.h"
void UDPServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("listen", "port", "bind_address"), &UDPServer::listen, DEFVAL("*"));
ClassDB::bind_method(D_METHOD("is_connection_available"), &UDPServer::is_connection_available);
ClassDB::bind_method(D_METHOD("is_listening"), &UDPServer::is_listening);
ClassDB::bind_method(D_METHOD("take_connection"), &UDPServer::take_connection);
ClassDB::bind_method(D_METHOD("stop"), &UDPServer::stop);
}
Error UDPServer::listen(uint16_t p_port, const IP_Address &p_bind_address) {
ERR_FAIL_COND_V(!_sock.is_valid(), ERR_UNAVAILABLE);
ERR_FAIL_COND_V(_sock->is_open(), ERR_ALREADY_IN_USE);
ERR_FAIL_COND_V(!p_bind_address.is_valid() && !p_bind_address.is_wildcard(), ERR_INVALID_PARAMETER);
Error err;
IP::Type ip_type = IP::TYPE_ANY;
if (p_bind_address.is_valid())
ip_type = p_bind_address.is_ipv4() ? IP::TYPE_IPV4 : IP::TYPE_IPV6;
err = _sock->open(NetSocket::TYPE_UDP, ip_type);
if (err != OK)
return ERR_CANT_CREATE;
_sock->set_blocking_enabled(false);
_sock->set_reuse_address_enabled(true);
err = _sock->bind(p_bind_address, p_port);
if (err != OK) {
stop();
return err;
}
bind_address = p_bind_address;
bind_port = p_port;
return OK;
}
bool UDPServer::is_listening() const {
ERR_FAIL_COND_V(!_sock.is_valid(), false);
return _sock->is_open();
}
bool UDPServer::is_connection_available() const {
ERR_FAIL_COND_V(!_sock.is_valid(), false);
if (!_sock->is_open())
return false;
Error err = _sock->poll(NetSocket::POLL_TYPE_IN, 0);
return (err == OK);
}
Ref<PacketPeerUDP> UDPServer::take_connection() {
Ref<PacketPeerUDP> conn;
if (!is_connection_available()) {
return conn;
}
conn = Ref<PacketPeerUDP>(memnew(PacketPeerUDP));
conn->connect_socket(_sock);
_sock = Ref<NetSocket>(NetSocket::create());
listen(bind_port, bind_address);
return conn;
}
void UDPServer::stop() {
if (_sock.is_valid()) {
_sock->close();
}
bind_port = 0;
bind_address = IP_Address();
}
UDPServer::UDPServer() :
_sock(Ref<NetSocket>(NetSocket::create())) {
}
UDPServer::~UDPServer() {
stop();
}
|