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
|
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
import { errors } from "./errors.ts";
import type { Reader, Writer, Closer } from "./io.ts";
import { read, write } from "./ops/io.ts";
import { close } from "./ops/resources.ts";
import * as netOps from "./ops/net.ts";
import type { Addr } from "./ops/net.ts";
export type { ShutdownMode, NetAddr, UnixAddr } from "./ops/net.ts";
export { shutdown } from "./ops/net.ts";
export interface DatagramConn extends AsyncIterable<[Uint8Array, Addr]> {
receive(p?: Uint8Array): Promise<[Uint8Array, Addr]>;
send(p: Uint8Array, addr: Addr): Promise<number>;
close(): void;
addr: Addr;
[Symbol.asyncIterator](): AsyncIterableIterator<[Uint8Array, Addr]>;
}
export interface Listener extends AsyncIterable<Conn> {
accept(): Promise<Conn>;
close(): void;
addr: Addr;
rid: number;
[Symbol.asyncIterator](): AsyncIterableIterator<Conn>;
}
export class ConnImpl implements Conn {
constructor(
readonly rid: number,
readonly remoteAddr: Addr,
readonly localAddr: Addr
) {}
write(p: Uint8Array): Promise<number> {
return write(this.rid, p);
}
read(p: Uint8Array): Promise<number | null> {
return read(this.rid, p);
}
close(): void {
close(this.rid);
}
// TODO(lucacasonato): make this unavailable in stable
closeWrite(): void {
netOps.shutdown(this.rid, netOps.ShutdownMode.Write);
}
}
export class ListenerImpl implements Listener {
constructor(readonly rid: number, readonly addr: Addr) {}
async accept(): Promise<Conn> {
const res = await netOps.accept(this.rid, this.addr.transport);
return new ConnImpl(res.rid, res.remoteAddr, res.localAddr);
}
async next(): Promise<IteratorResult<Conn>> {
let conn: Conn;
try {
conn = await this.accept();
} catch (error) {
if (error instanceof errors.BadResource) {
return { value: undefined, done: true };
}
throw error;
}
return { value: conn!, done: false };
}
return(value?: Conn): Promise<IteratorResult<Conn>> {
this.close();
return Promise.resolve({ value, done: true });
}
close(): void {
close(this.rid);
}
[Symbol.asyncIterator](): AsyncIterableIterator<Conn> {
return this;
}
}
export class DatagramImpl implements DatagramConn {
constructor(
readonly rid: number,
readonly addr: Addr,
public bufSize: number = 1024
) {}
async receive(p?: Uint8Array): Promise<[Uint8Array, Addr]> {
const buf = p || new Uint8Array(this.bufSize);
const { size, remoteAddr } = await netOps.receive(
this.rid,
this.addr.transport,
buf
);
const sub = buf.subarray(0, size);
return [sub, remoteAddr];
}
send(p: Uint8Array, addr: Addr): Promise<number> {
const remote = { hostname: "127.0.0.1", ...addr };
const args = { ...remote, rid: this.rid };
return netOps.send(args as netOps.SendRequest, p);
}
close(): void {
close(this.rid);
}
async *[Symbol.asyncIterator](): AsyncIterableIterator<[Uint8Array, Addr]> {
while (true) {
try {
yield await this.receive();
} catch (err) {
if (err instanceof errors.BadResource) {
break;
}
throw err;
}
}
}
}
export interface Conn extends Reader, Writer, Closer {
localAddr: Addr;
remoteAddr: Addr;
rid: number;
closeWrite(): void;
}
export interface ListenOptions {
port: number;
hostname?: string;
transport?: "tcp";
}
export function listen(
options: ListenOptions & { transport?: "tcp" }
): Listener;
export function listen(options: ListenOptions): Listener {
const res = netOps.listen({
transport: "tcp",
hostname: "0.0.0.0",
...(options as ListenOptions),
});
return new ListenerImpl(res.rid, res.localAddr);
}
export interface ConnectOptions {
port: number;
hostname?: string;
transport?: "tcp";
}
export interface UnixConnectOptions {
transport: "unix";
path: string;
}
export async function connect(options: UnixConnectOptions): Promise<Conn>;
export async function connect(options: ConnectOptions): Promise<Conn>;
export async function connect(
options: ConnectOptions | UnixConnectOptions
): Promise<Conn> {
let res;
if (options.transport === "unix") {
res = await netOps.connect(options);
} else {
res = await netOps.connect({
transport: "tcp",
hostname: "127.0.0.1",
...options,
});
}
return new ConnImpl(res.rid, res.remoteAddr!, res.localAddr!);
}
|
