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 <errno.h>
23
24#ifndef _WIN32
25# include <fcntl.h>
26# include <sys/socket.h>
27# include <unistd.h>
28#endif
29
30#include "uv.h"
31#include "task.h"
32
33
34static int close_cb_called = 0;
35
36
37static void close_cb(uv_handle_t* handle) {
38  close_cb_called++;
39}
40
41static void poll_cb(uv_poll_t* handle, int status, int events) {
42  /* Not a bound socket, linux immediately reports UV_READABLE, other OS do not */
43  ASSERT_EQ(events, UV_READABLE);
44}
45
46TEST_IMPL(poll_multiple_handles) {
47  uv_os_sock_t sock;
48  uv_poll_t first_poll_handle, second_poll_handle;
49
50#ifdef _WIN32
51  {
52    struct WSAData wsa_data;
53    int r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
54    ASSERT_OK(r);
55  }
56#endif
57
58  sock = socket(AF_INET, SOCK_STREAM, 0);
59#ifdef _WIN32
60  ASSERT_NE(sock, INVALID_SOCKET);
61#else
62  ASSERT_NE(sock, -1);
63#endif
64  ASSERT_OK(uv_poll_init_socket(uv_default_loop(),
65                                &first_poll_handle,
66                                sock));
67  ASSERT_OK(uv_poll_init_socket(uv_default_loop(),
68                                &second_poll_handle,
69                                sock));
70
71  ASSERT_OK(uv_poll_start(&first_poll_handle, UV_READABLE, poll_cb));
72
73  /* We may not start polling while another polling handle is active
74   * on that fd.
75   */
76#ifndef _WIN32
77  /* We do not track handles in an O(1) lookupable way on Windows,
78   * so not checking that here.
79   */
80  ASSERT_EQ(uv_poll_start(&second_poll_handle, UV_READABLE, poll_cb),
81            UV_EEXIST);
82#endif
83
84  /* After stopping the other polling handle, we now should be able to poll */
85  ASSERT_OK(uv_poll_stop(&first_poll_handle));
86  ASSERT_OK(uv_poll_start(&second_poll_handle, UV_READABLE, poll_cb));
87
88  /* Closing an already stopped polling handle is safe in any case */
89  uv_close((uv_handle_t*) &first_poll_handle, close_cb);
90
91  uv_unref((uv_handle_t*) &second_poll_handle);
92  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
93  ASSERT_EQ(1, close_cb_called);
94  uv_ref((uv_handle_t*) &second_poll_handle);
95
96  ASSERT(uv_is_active((uv_handle_t*) &second_poll_handle));
97  uv_close((uv_handle_t*) &second_poll_handle, close_cb);
98
99  ASSERT_OK(uv_run(uv_default_loop(), UV_RUN_DEFAULT));
100  ASSERT_EQ(2, close_cb_called);
101
102  MAKE_VALGRIND_HAPPY(uv_default_loop());
103  return 0;
104}
105