blob: c12313bd365ef105effd4cd868926c7ac0f90ba4 (
plain)
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
|
use crate::sync::mpsc;
use futures::future::poll_fn;
use loom::future::block_on;
use loom::sync::Arc;
use loom::thread;
use tokio_test::assert_ok;
#[test]
fn closing_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::channel(16);
thread::spawn(move || {
tx.try_send(()).unwrap();
drop(tx);
});
let v = block_on(rx.recv());
assert!(v.is_some());
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
#[test]
fn closing_unbounded_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::unbounded_channel();
thread::spawn(move || {
tx.send(()).unwrap();
drop(tx);
});
let v = block_on(rx.recv());
assert!(v.is_some());
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
#[test]
fn closing_bounded_rx() {
loom::model(|| {
let (tx1, rx) = mpsc::channel::<()>(16);
let tx2 = tx1.clone();
thread::spawn(move || {
drop(rx);
});
block_on(tx1.closed());
block_on(tx2.closed());
});
}
#[test]
fn closing_and_sending() {
loom::model(|| {
let (tx1, mut rx) = mpsc::channel::<()>(16);
let tx1 = Arc::new(tx1);
let tx2 = tx1.clone();
let th1 = thread::spawn(move || {
tx1.try_send(()).unwrap();
});
let th2 = thread::spawn(move || {
block_on(tx2.closed());
});
let th3 = thread::spawn(move || {
let v = block_on(rx.recv());
assert!(v.is_some());
drop(rx);
});
assert_ok!(th1.join());
assert_ok!(th2.join());
assert_ok!(th3.join());
});
}
#[test]
fn closing_unbounded_rx() {
loom::model(|| {
let (tx1, rx) = mpsc::unbounded_channel::<()>();
let tx2 = tx1.clone();
thread::spawn(move || {
drop(rx);
});
block_on(tx1.closed());
block_on(tx2.closed());
});
}
#[test]
fn dropping_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::channel::<()>(16);
for _ in 0..2 {
let tx = tx.clone();
thread::spawn(move || {
drop(tx);
});
}
drop(tx);
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
#[test]
fn dropping_unbounded_tx() {
loom::model(|| {
let (tx, mut rx) = mpsc::unbounded_channel::<()>();
for _ in 0..2 {
let tx = tx.clone();
thread::spawn(move || {
drop(tx);
});
}
drop(tx);
let v = block_on(rx.recv());
assert!(v.is_none());
});
}
|
