1/* Copyright libuv project 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
25static uv_tcp_t server;
26static uv_tcp_t connection;
27static int read_cb_called = 0;
28
29static uv_tcp_t client;
30static uv_connect_t connect_req;
31
32
33static void on_read2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf);
34
35static void on_write_close_immediately(uv_write_t* req, int status) {
36  ASSERT_OK(status);
37
38  uv_close((uv_handle_t*)req->handle, NULL); /* Close immediately */
39  free(req);
40}
41
42static void on_write(uv_write_t* req, int status) {
43  ASSERT_OK(status);
44
45  free(req);
46}
47
48static void do_write(uv_stream_t* stream, uv_write_cb cb) {
49  uv_write_t* req = malloc(sizeof(*req));
50  uv_buf_t buf;
51  buf.base = "1234578";
52  buf.len = 8;
53  ASSERT_OK(uv_write(req, stream, &buf, 1, cb));
54}
55
56static void on_alloc(uv_handle_t* handle,
57                     size_t suggested_size,
58                     uv_buf_t* buf) {
59  static char slab[65536];
60  buf->base = slab;
61  buf->len = sizeof(slab);
62}
63
64static void on_read1(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
65  ASSERT_GE(nread, 0);
66
67  /* Do write on a half open connection to force WSAECONNABORTED (on Windows)
68   * in the subsequent uv_read_start()
69   */
70  do_write(stream, on_write);
71
72  ASSERT_OK(uv_read_stop(stream));
73
74  ASSERT_OK(uv_read_start(stream, on_alloc, on_read2));
75
76  read_cb_called++;
77}
78
79static void on_read2(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) {
80  ASSERT_LT(nread, 0);
81
82  uv_close((uv_handle_t*)stream, NULL);
83  uv_close((uv_handle_t*)&server, NULL);
84
85  read_cb_called++;
86}
87
88static void on_connection(uv_stream_t* server, int status) {
89  ASSERT_OK(status);
90
91  ASSERT_OK(uv_tcp_init(server->loop, &connection));
92
93  ASSERT_OK(uv_accept(server, (uv_stream_t* )&connection));
94
95  ASSERT_OK(uv_read_start((uv_stream_t*)&connection, on_alloc, on_read1));
96}
97
98static void on_connect(uv_connect_t* req, int status) {
99  ASSERT_OK(status);
100
101  do_write((uv_stream_t*)&client, on_write_close_immediately);
102}
103
104TEST_IMPL(tcp_read_stop_start) {
105  uv_loop_t* loop = uv_default_loop();
106
107  { /* Server */
108    struct sockaddr_in addr;
109
110    ASSERT_OK(uv_ip4_addr("0.0.0.0", TEST_PORT, &addr));
111
112    ASSERT_OK(uv_tcp_init(loop, &server));
113
114    ASSERT_OK(uv_tcp_bind(&server, (struct sockaddr*) & addr, 0));
115
116    ASSERT_OK(uv_listen((uv_stream_t*)&server, 10, on_connection));
117  }
118
119  { /* Client */
120    struct sockaddr_in addr;
121
122    ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &addr));
123
124    ASSERT_OK(uv_tcp_init(loop, &client));
125
126    ASSERT_OK(uv_tcp_connect(&connect_req, &client,
127                             (const struct sockaddr*) & addr, on_connect));
128  }
129
130  ASSERT_OK(uv_run(loop, UV_RUN_DEFAULT));
131
132  ASSERT_GE(read_cb_called, 2);
133
134  MAKE_VALGRIND_HAPPY(loop);
135  return 0;
136}
137