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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
use super::loader::{DriverLoader};
#[cfg(feature = "tcp")]
use crate::adapters::tcp::{TcpAdapter, TcpConnectConfig, TcpListenConfig};
#[cfg(feature = "tcp")]
use crate::adapters::framed_tcp::{FramedTcpAdapter, FramedTcpConnectConfig, FramedTcpListenConfig};
#[cfg(feature = "udp")]
use crate::adapters::udp::{self, UdpAdapter, UdpConnectConfig, UdpListenConfig};
#[cfg(feature = "websocket")]
use crate::adapters::ws::{self, WsAdapter};
use serde::{Serialize, Deserialize};
/// Enum to identified the underlying transport used.
/// It can be passed to
/// [`NetworkController::connect()`](crate::network::NetworkController::connect()) and
/// [`NetworkController::listen()`](crate::network::NetworkController::connect()) methods
/// to specify the transport used.
#[derive(strum::EnumIter, Serialize, Deserialize, Clone, Copy, PartialEq, Eq, Hash, Debug)]
pub enum Transport {
/// TCP protocol (available through the *tcp* feature).
/// As stream protocol, receiving a message from TCP do not imply to read
/// the entire message.
/// If you want a packet based way to send over TCP, use `FramedTcp` instead.
#[cfg(feature = "tcp")]
Tcp,
/// Tcp framed protocol (available through the *tcp* feature).
/// Like TCP, but encoded with a slim frame layer to manage the data as a packet,
/// instead of as a stream.
/// It prefixes the message using variable integer encoding with the size of the message.
/// Most of the time you would want to use this instead of the raw `Tcp`.
#[cfg(feature = "tcp")]
FramedTcp,
/// UDP protocol (available through the *udp* feature).
/// Take into account that UDP is not connection oriented and a packet can be lost
/// or received disordered.
/// If it is specified in the listener and the address is a Ipv4 in the range of multicast ips
/// (from `224.0.0.0` to `239.255.255.255`), the listener will be configured in multicast mode.
#[cfg(feature = "udp")]
Udp,
/// WebSocket protocol (available through the *websocket* feature).
/// If you use a [`crate::network::RemoteAddr::Str`] in the `connect()` method,
/// you can specify an URL with `wss` of `ws` schemas to connect with or without security.
/// If you use a [`crate::network::RemoteAddr::Socket`] the socket will be a normal
/// websocket with the following uri: `ws://{SocketAddr}/message-io-default`.
#[cfg(feature = "websocket")]
Ws,
}
impl Transport {
/// Associates an adapter.
/// This method mounts the adapters to be used in the network instance.
pub fn mount_adapter(self, loader: &mut DriverLoader) {
match self {
#[cfg(feature = "tcp")]
Self::Tcp => loader.mount(self.id(), TcpAdapter),
#[cfg(feature = "tcp")]
Self::FramedTcp => loader.mount(self.id(), FramedTcpAdapter),
#[cfg(feature = "udp")]
Self::Udp => loader.mount(self.id(), UdpAdapter),
#[cfg(feature = "websocket")]
Self::Ws => loader.mount(self.id(), WsAdapter),
};
}
/// Maximum theorical packet payload length available for each transport.
///
/// The value returned by this function is the **theorical maximum** and could not be valid for
/// all networks.
/// You can ensure your message not exceeds `udp::MAX_INTERNET_PAYLOAD_LEN` in order to be
/// more cross-platform compatible.
pub const fn max_message_size(self) -> usize {
match self {
#[cfg(feature = "tcp")]
Self::Tcp => usize::MAX,
#[cfg(feature = "tcp")]
Self::FramedTcp => usize::MAX,
#[cfg(feature = "udp")]
Self::Udp => udp::MAX_LOCAL_PAYLOAD_LEN,
#[cfg(feature = "websocket")]
Self::Ws => ws::MAX_PAYLOAD_LEN,
}
}
/// Tell if the transport protocol is a connection oriented protocol.
/// If it is, `Connection` and `Disconnection` events will be generated.
pub const fn is_connection_oriented(self) -> bool {
match self {
#[cfg(feature = "tcp")]
Transport::Tcp => true,
#[cfg(feature = "tcp")]
Transport::FramedTcp => true,
#[cfg(feature = "udp")]
Transport::Udp => false,
#[cfg(feature = "websocket")]
Transport::Ws => true,
}
}
/// Tell if the transport protocol is a packet-based protocol.
/// It implies that any send call corresponds to a data message event.
/// It satisfies that the number of bytes sent are the same as received.
/// The opossite of a packet-based is a stream-based transport (e.g Tcp).
/// In this case, reading a data message event do not imply reading the entire message sent.
/// It is in change of the user to determinate how to read the data.
pub const fn is_packet_based(self) -> bool {
match self {
#[cfg(feature = "tcp")]
Transport::Tcp => false,
#[cfg(feature = "tcp")]
Transport::FramedTcp => true,
#[cfg(feature = "udp")]
Transport::Udp => true,
#[cfg(feature = "websocket")]
Transport::Ws => true,
}
}
/// Returns the adapter id used for this transport.
/// It is equivalent to the position of the enum starting by 0
pub const fn id(self) -> u8 {
match self {
#[cfg(feature = "tcp")]
Transport::Tcp => 0,
#[cfg(feature = "tcp")]
Transport::FramedTcp => 1,
#[cfg(feature = "udp")]
Transport::Udp => 2,
#[cfg(feature = "websocket")]
Transport::Ws => 3,
}
}
}
impl From<u8> for Transport {
fn from(id: u8) -> Self {
match id {
#[cfg(feature = "tcp")]
0 => Transport::Tcp,
#[cfg(feature = "tcp")]
1 => Transport::FramedTcp,
#[cfg(feature = "udp")]
2 => Transport::Udp,
#[cfg(feature = "websocket")]
3 => Transport::Ws,
_ => panic!("Not available transport"),
}
}
}
impl std::fmt::Display for Transport {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
write!(f, "{self:?}")
}
}
#[derive(Debug)]
pub enum TransportConnect {
#[cfg(feature = "tcp")]
Tcp(TcpConnectConfig),
#[cfg(feature = "tcp")]
FramedTcp(FramedTcpConnectConfig),
#[cfg(feature = "udp")]
Udp(UdpConnectConfig),
#[cfg(feature = "websocket")]
Ws,
}
impl TransportConnect {
pub fn id(&self) -> u8 {
let transport = match self {
#[cfg(feature = "tcp")]
Self::Tcp(_) => Transport::Tcp,
#[cfg(feature = "tcp")]
Self::FramedTcp(_) => Transport::FramedTcp,
#[cfg(feature = "udp")]
Self::Udp(_) => Transport::Udp,
#[cfg(feature = "websocket")]
Self::Ws => Transport::Ws,
};
transport.id()
}
}
impl From<Transport> for TransportConnect {
fn from(transport: Transport) -> Self {
match transport {
#[cfg(feature = "tcp")]
Transport::Tcp => Self::Tcp(TcpConnectConfig::default()),
#[cfg(feature = "tcp")]
Transport::FramedTcp => Self::FramedTcp(FramedTcpConnectConfig::default()),
#[cfg(feature = "udp")]
Transport::Udp => Self::Udp(UdpConnectConfig::default()),
#[cfg(feature = "websocket")]
Transport::Ws => Self::Ws,
}
}
}
#[derive(Debug)]
pub enum TransportListen {
#[cfg(feature = "tcp")]
Tcp(TcpListenConfig),
#[cfg(feature = "tcp")]
FramedTcp(FramedTcpListenConfig),
#[cfg(feature = "udp")]
Udp(UdpListenConfig),
#[cfg(feature = "websocket")]
Ws,
}
impl TransportListen {
pub fn id(&self) -> u8 {
let transport = match self {
#[cfg(feature = "tcp")]
Self::Tcp(_) => Transport::Tcp,
#[cfg(feature = "tcp")]
Self::FramedTcp(_) => Transport::FramedTcp,
#[cfg(feature = "udp")]
Self::Udp(_) => Transport::Udp,
#[cfg(feature = "websocket")]
Self::Ws => Transport::Ws,
};
transport.id()
}
}
impl From<Transport> for TransportListen {
fn from(transport: Transport) -> Self {
match transport {
#[cfg(feature = "tcp")]
Transport::Tcp => Self::Tcp(TcpListenConfig::default()),
#[cfg(feature = "tcp")]
Transport::FramedTcp => Self::FramedTcp(FramedTcpListenConfig::default()),
#[cfg(feature = "udp")]
Transport::Udp => Self::Udp(UdpListenConfig::default()),
#[cfg(feature = "websocket")]
Transport::Ws => Self::Ws,
}
}
}