1 | /* Copyright Joyent, Inc. and other Node contributors. All rights reserved. |
2 | * |
3 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
4 | * of this software and associated documentation files (the "Software"), to |
5 | * deal in the Software without restriction, including without limitation the |
6 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or |
7 | * sell copies of the Software, and to permit persons to whom the Software is |
8 | * furnished to do so, subject to the following conditions: |
9 | * |
10 | * The above copyright notice and this permission notice shall be included in |
11 | * all copies or substantial portions of the Software. |
12 | * |
13 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
14 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
15 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
16 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
17 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
18 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
19 | * IN THE SOFTWARE. |
20 | */ |
21 | |
22 | #include "uv.h" |
23 | #include "task.h" |
24 | |
25 | #include <stdio.h> |
26 | #include <stdlib.h> |
27 | |
28 | typedef struct { |
29 | uv_tcp_t handle; |
30 | uv_shutdown_t shutdown_req; |
31 | } conn_rec; |
32 | |
33 | static uv_tcp_t tcp_server; |
34 | |
35 | static void connection_cb(uv_stream_t* stream, int status); |
36 | static void alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf); |
37 | static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf); |
38 | static void shutdown_cb(uv_shutdown_t* req, int status); |
39 | static void close_cb(uv_handle_t* handle); |
40 | |
41 | |
42 | static void connection_cb(uv_stream_t* stream, int status) { |
43 | conn_rec* conn; |
44 | int r; |
45 | |
46 | ASSERT(status == 0); |
47 | ASSERT(stream == (uv_stream_t*)&tcp_server); |
48 | |
49 | conn = malloc(sizeof *conn); |
50 | ASSERT(conn != NULL); |
51 | |
52 | r = uv_tcp_init(stream->loop, &conn->handle); |
53 | ASSERT(r == 0); |
54 | |
55 | r = uv_accept(stream, (uv_stream_t*)&conn->handle); |
56 | ASSERT(r == 0); |
57 | |
58 | r = uv_read_start((uv_stream_t*)&conn->handle, alloc_cb, read_cb); |
59 | ASSERT(r == 0); |
60 | } |
61 | |
62 | |
63 | static void alloc_cb(uv_handle_t* handle, |
64 | size_t suggested_size, |
65 | uv_buf_t* buf) { |
66 | static char slab[65536]; |
67 | buf->base = slab; |
68 | buf->len = sizeof(slab); |
69 | } |
70 | |
71 | |
72 | static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) { |
73 | conn_rec* conn; |
74 | int r; |
75 | |
76 | if (nread >= 0) |
77 | return; |
78 | |
79 | ASSERT(nread == UV_EOF); |
80 | |
81 | conn = container_of(stream, conn_rec, handle); |
82 | |
83 | r = uv_shutdown(&conn->shutdown_req, stream, shutdown_cb); |
84 | ASSERT(r == 0); |
85 | } |
86 | |
87 | |
88 | static void shutdown_cb(uv_shutdown_t* req, int status) { |
89 | conn_rec* conn = container_of(req, conn_rec, shutdown_req); |
90 | uv_close((uv_handle_t*)&conn->handle, close_cb); |
91 | } |
92 | |
93 | |
94 | static void close_cb(uv_handle_t* handle) { |
95 | conn_rec* conn = container_of(handle, conn_rec, handle); |
96 | free(conn); |
97 | } |
98 | |
99 | |
100 | HELPER_IMPL(tcp4_blackhole_server) { |
101 | struct sockaddr_in addr; |
102 | uv_loop_t* loop; |
103 | int r; |
104 | |
105 | loop = uv_default_loop(); |
106 | ASSERT(0 == uv_ip4_addr("127.0.0.1" , TEST_PORT, &addr)); |
107 | |
108 | r = uv_tcp_init(loop, &tcp_server); |
109 | ASSERT(r == 0); |
110 | |
111 | r = uv_tcp_bind(&tcp_server, (const struct sockaddr*) &addr, 0); |
112 | ASSERT(r == 0); |
113 | |
114 | r = uv_listen((uv_stream_t*)&tcp_server, 128, connection_cb); |
115 | ASSERT(r == 0); |
116 | |
117 | r = uv_run(loop, UV_RUN_DEFAULT); |
118 | ASSERT(0 && "Blackhole server dropped out of event loop." ); |
119 | |
120 | return 0; |
121 | } |
122 | |