-
Notifications
You must be signed in to change notification settings - Fork 6
Expand file tree
/
Copy pathIndex.ets
More file actions
128 lines (113 loc) · 2.97 KB
/
Copy pathIndex.ets
File metadata and controls
128 lines (113 loc) · 2.97 KB
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
import {
SynStart,
SynEnd,
wait,
notify,
SharedBoolean,
SharedString,
SharedNumber,
Syc,
isMainThread,
addFunc,
Runnable,
Thread,
} from './ThreadBridge';
export function sharedWash(runnable: Runnable) {
let archetype: Runnable;
if (runnable.className === 'VehicleClass') {
archetype = new VehicleClass(new Intersection(), 0);
} else {
archetype = new Thread();
}
addFunc(runnable, archetype);
runnable.run();
}
class Intersection {
private greenLight = new SharedBoolean(true);
private waitingCount = new SharedNumber(0);
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'Intersection';
changeLight(): void {
this.greenLight.setValue(!this.greenLight.getValue());
if (this.greenLight.getValue()) {
console.log('Traffic light changes to green.');
} else {
console.log('Traffic light changes to red.');
}
{
SynStart(this.syn);
notify(this.syn);
SynEnd(this.syn);
}
}
isGreen(): boolean {
return this.greenLight.getValue();
}
async waitToPass(): Promise<void> {
{
SynStart(this.syn);
this.waitingCount.setValue(this.waitingCount.getValue() + 1);
while (!this.isGreen()) {
await wait(this.syn);
}
this.waitingCount.setValue(this.waitingCount.getValue() - 1);
SynEnd(this.syn);
}
}
getWaitingCount(): number {
return this.waitingCount.getValue();
}
}
class VehicleClass implements Runnable {
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'VehicleClass';
private intersection: Intersection;
private vehicleId = new SharedNumber();
constructor(intersection: Intersection, vehicleId: number) {
this.intersection = intersection;
this.vehicleId.setValue(vehicleId);
}
run(): void {
while (!Thread.interrupted()) {
try {
Thread.sleep(1000);
this.intersection.waitToPass();
console.log(`Vehicle ${this.vehicleId.getValue()} passes the traffic light.`);
} catch (e) {
if (e instanceof InterruptedException) {
Thread.currentThread().interrupt();
}
}
}
}
}
class TrafficLightProblem {
public syn: Syc = new Syc();
public static staticSyn: Syc = new Syc();
public className: string = 'TrafficLightProblem';
static main(): void {
const intersection = new Intersection();
for (let i = 1; i <= 10; i++) {
const vehicleThread = new Thread(new VehicleClass(intersection, i), `Vehicle ${i}`);
vehicleThread.start();
}
for (let i = 0; i < 5; i++) {
intersection.changeLight();
try {
Thread.sleep(3000);
} catch (e) {
console.error(e);
}
}
for (const thread of Thread.getAllStackTraces().keys()) {
if (thread.getName().startsWith('Vehicle')) {
thread.interrupt();
}
}
}
}
if (isMainThread()) {
// You can put the entry of your code here to test.
}