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
use std::net::SocketAddr;
use futures::Future;
use futures::future::{ok, Either, err};
use futures::sync::mpsc::{Sender, Receiver, channel as mpsc_channel};
use futures::sync::oneshot::channel;
use tokio::prelude::*;
use tokio_core::reactor::Core;
use nt_packet::ClientMessage;
use proto::*;
use proto::types::*;
use std::sync::{Arc, Mutex};
use std::io::{Error, ErrorKind};
use std::thread;
use std::collections::HashMap;
pub(crate) mod state;
mod conn;
mod handler;
mod entry;
mod callback;
use self::handler::*;
use self::state::*;
use self::conn::Connection;
pub use self::entry::*;
pub use self::callback::CallbackType;
pub struct NetworkTables {
state: Arc<Mutex<State>>,
end_tx: Sender<()>
}
impl NetworkTables {
pub fn connect(client_name: &'static str, target: SocketAddr) -> ::Result<NetworkTables> {
let state = Arc::new(Mutex::new(State::new()));
state.lock().unwrap().set_connection_state(ConnectionState::Connecting);
let (tx, rx) = channel();
let (end_tx, end_rx) = mpsc_channel(1);
let thread_state = state.clone();
let _ = thread::spawn(move || {
let mut core = Core::new().unwrap();
let handle = core.handle();
let state = thread_state;
{
state.lock().unwrap().set_handle(handle.clone().remote().clone());
}
core.run(Connection::new(&handle, &target, client_name, state, tx, end_rx)).unwrap();
});
rx.wait()?;
{
while state.lock().unwrap().connection_state().connecting() {}
}
Ok(NetworkTables {
state,
end_tx
})
}
pub fn add_callback<F>(&mut self, action: CallbackType, cb: F)
where F: Fn(&EntryData) + Send + 'static
{
let mut state = self.state.lock().unwrap();
state.callbacks_mut().insert(action, Box::new(cb));
}
pub fn entries(&self) -> HashMap<u16, EntryData> {
self.state.lock().unwrap().entries()
}
pub fn get_entry(&self, id: u16) -> Entry {
Entry::new(self, id)
}
pub fn get_entry_mut(&mut self, id: u16) -> EntryMut {
EntryMut::new(self, id)
}
pub fn create_entry(&mut self, data: EntryData) -> u16 {
let rx = self.state.lock().unwrap().create_entry(data);
let id = rx.wait().next().unwrap().unwrap();
id
}
pub(crate) fn delete_entry(&mut self, id: u16) {
self.state.lock().unwrap().delete_entry(id);
}
pub fn delete_all_entries(&mut self) {
self.state.lock().unwrap().delete_all_entries();
}
pub(crate) fn update_entry(&mut self, id: u16, new_value: EntryValue) {
self.state.lock().unwrap().update_entry(id, new_value);
}
pub(crate) fn update_entry_flags(&mut self, id: u16, flags: u8) {
self.state.lock().unwrap().update_entry_flags(id, flags);
}
pub fn connected(&self) -> bool {
self.state.lock().unwrap().connection_state().connected()
}
}
impl Drop for NetworkTables {
fn drop(&mut self) {
self.end_tx.clone().send(()).wait().unwrap();
}
}
#[doc(hidden)]
pub(crate) fn send_packets(tx: impl Sink<SinkItem=Box<ClientMessage>, SinkError=Error>, rx: Receiver<Box<ClientMessage>>) -> impl Future<Item=(), Error=()> {
debug!("Spawned packet send loop");
rx
.fold(tx, |tx, packet| tx.send(packet)
.map_err(|e| error!("Packet sender encountered an error: {}", e)))
.map(drop)
}
#[doc(hidden)]
pub fn poll_socket(state: Arc<Mutex<State>>, rx: impl Stream<Item=Packet, Error=Error>, tx: Sender<Box<ClientMessage>>, end_rx: Receiver<()>) -> impl Future<Item=(), Error=Error> {
debug!("Spawned socket poll");
rx.map(Either::A).select(end_rx.map(Either::B).map_err(|_| Error::new(ErrorKind::Other, "Error encountered from closing channel")))
.fold(tx, move |tx, packet| {
match packet {
Either::A(packet) => match handle_packet(packet, state.clone(), tx.clone()) {
Ok(Some(packet)) => Either::A(tx.send(packet).map_err(|e| Error::new(ErrorKind::Other, format!("{}", e)))),
Ok(None) => Either::B(ok(tx)),
Err(e) => Either::B(err(e)),
}
Either::B(_) => Either::B(err(Error::new(ErrorKind::Other, "NetworkTables dropped")))
}
})
.map_err(|e| {
error!("handle_packet encountered an error: {}", e);
e
})
.map(drop)
}