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
|
use std::hash::Hash;
use std::io::Write;
use std::marker::PhantomData;
use std::net::{SocketAddr, TcpListener as StdTcpListener, TcpStream};
use std::sync::atomic::{AtomicU64, Ordering};
use std::sync::{Arc, Mutex};
use crate::codec::Codec;
use crate::context::Context;
use crate::transport::connection::Connection;
use crate::transport::error::TransportError;
use crate::transport::listener::Listener;
use crate::transport::receiver::PacketReceiver;
use crate::transport::sender::PacketSender;
use crate::transport::{Result, Transport};
// TODO : check Tcp Transport
#[derive(Clone)]
pub struct TcpSender {
stream: Arc<Mutex<TcpStream>>,
}
impl<Data> PacketSender<Data> for TcpSender {
fn send<P: Codec<Data>>(&self, packet: P, ctx: &Context<Data>) -> Result<()> {
let mut buf = Vec::new();
packet.encode(&mut buf, ctx)?;
let mut guard = self
.stream
.lock()
.map_err(|_| TransportError::LockPoisoned)?;
guard.write_all(&buf)?;
guard.flush()?;
Ok(())
}
}
pub struct TcpReceiver<Uid> {
stream: Arc<Mutex<TcpStream>>,
uid: Uid,
}
impl<Data, Uid> PacketReceiver<Data, Uid> for TcpReceiver<Uid>
where
Uid: PartialEq + Clone + Send + Sync,
{
fn recv<P: Codec<Data>>(&self, ctx: &Context<Data>) -> Result<(Uid, P)> {
let mut guard = self
.stream
.lock()
.map_err(|_| TransportError::LockPoisoned)?;
let packet = P::decode(&mut *guard, ctx)?;
Ok((self.uid.clone(), packet))
}
}
pub struct TcpListener<Uid, Data> {
listener: Arc<StdTcpListener>,
factory: Arc<dyn Fn() -> Uid + Send + Sync>,
_p: PhantomData<Data>,
}
impl<Uid, Data> Listener<Uid> for TcpListener<Uid, Data>
where
Uid: PartialEq + Eq + Hash + Clone + Send + Sync,
Data: Send + Sync,
{
type Data = Data;
type Sender = TcpSender;
type Receiver = TcpReceiver<Uid>;
fn accept(&mut self) -> Result<Connection<Uid, Data, TcpSender, TcpReceiver<Uid>>> {
let (stream, _peer) = self.listener.accept()?;
let stream = Arc::new(Mutex::new(stream));
let uid = (self.factory)();
let sender = TcpSender {
stream: stream.clone(),
};
let receiver = TcpReceiver { stream, uid };
Ok(Connection::new(sender, receiver))
}
}
pub struct TcpTransport<Uid, Data> {
factory: Arc<dyn Fn() -> Uid + Send + Sync>,
_p: PhantomData<(Uid, Data)>,
}
impl<Uid, Data> TcpTransport<Uid, Data>
where
Uid: PartialEq + Eq + Hash + Clone + Send + Sync,
{
pub fn new<F: Fn() -> Uid + Send + Sync + 'static>(factory: F) -> Self {
Self {
factory: Arc::new(factory),
_p: PhantomData,
}
}
}
impl Default for TcpTransport<u64, ()> {
fn default() -> Self {
let counter = Arc::new(AtomicU64::new(0));
TcpTransport::new(move || counter.fetch_add(1, Ordering::Relaxed))
}
}
impl<Uid, Data> Transport<Uid> for TcpTransport<Uid, Data>
where
Uid: PartialEq + Eq + Hash + Clone + Send + Sync,
Data: Send + Sync,
{
type Data = Data;
type Addr = SocketAddr;
type Sender = TcpSender;
type Receiver = TcpReceiver<Uid>;
type Listener = TcpListener<Uid, Data>;
fn connect(
&self,
addr: SocketAddr,
) -> Result<Connection<Uid, Data, TcpSender, TcpReceiver<Uid>>> {
let stream = TcpStream::connect(addr)?;
let stream = Arc::new(Mutex::new(stream));
let uid = (self.factory)();
let sender = TcpSender {
stream: stream.clone(),
};
let receiver = TcpReceiver { stream, uid };
Ok(Connection::new(sender, receiver))
}
fn listen(&self, addr: SocketAddr) -> Result<TcpListener<Uid, Data>> {
let listener = StdTcpListener::bind(addr)?;
Ok(TcpListener {
listener: Arc::new(listener),
factory: self.factory.clone(),
_p: PhantomData,
})
}
}
|
