1/* Copyright Bert Belder, and other libuv 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#include <stdio.h>
24
25#include "uv.h"
26#include "task.h"
27
28#ifdef _MSC_VER  /* msvc */
29# define NO_INLINE __declspec(noinline)
30#else  /* gcc */
31# define NO_INLINE __attribute__ ((noinline))
32#endif
33
34#ifdef _WIN32
35static uv_os_sock_t sock;
36static uv_poll_t handle;
37static int close_cb_called = 0;
38
39
40static void close_cb(uv_handle_t* h) {
41  close_cb_called++;
42}
43
44
45static void poll_cb(uv_poll_t* h, int status, int events) {
46  ASSERT(0 && "should never get here");
47}
48
49
50static void NO_INLINE close_socket_and_verify_stack(void) {
51  const uint32_t MARKER = 0xDEADBEEF;
52  const int VERIFY_AFTER = 10; /* ms */
53  int r;
54
55  volatile uint32_t data[65536];
56  size_t i;
57
58  for (i = 0; i < ARRAY_SIZE(data); i++)
59    data[i] = MARKER;
60
61  r = closesocket(sock);
62  ASSERT(r == 0);
63
64  uv_sleep(VERIFY_AFTER);
65
66  for (i = 0; i < ARRAY_SIZE(data); i++)
67    ASSERT(data[i] == MARKER);
68}
69#endif
70
71
72TEST_IMPL(poll_close_doesnt_corrupt_stack) {
73#ifndef _WIN32
74  RETURN_SKIP("Test only relevant on Windows");
75#else
76  struct WSAData wsa_data;
77  int r;
78  unsigned long on;
79  struct sockaddr_in addr;
80
81  r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
82  ASSERT(r == 0);
83
84  sock = socket(AF_INET, SOCK_STREAM, 0);
85  ASSERT(sock != INVALID_SOCKET);
86  on = 1;
87  r = ioctlsocket(sock, FIONBIO, &on);
88  ASSERT(r == 0);
89
90  r = uv_ip4_addr("127.0.0.1", TEST_PORT, &addr);
91  ASSERT(r == 0);
92
93  r = connect(sock, (const struct sockaddr*) &addr, sizeof addr);
94  ASSERT(r != 0);
95  ASSERT(WSAGetLastError() == WSAEWOULDBLOCK);
96
97  r = uv_poll_init_socket(uv_default_loop(), &handle, sock);
98  ASSERT(r == 0);
99  r = uv_poll_start(&handle, UV_READABLE | UV_WRITABLE, poll_cb);
100  ASSERT(r == 0);
101
102  uv_close((uv_handle_t*) &handle, close_cb);
103
104  close_socket_and_verify_stack();
105
106  r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
107  ASSERT(r == 0);
108
109  ASSERT(close_cb_called == 1);
110
111  MAKE_VALGRIND_HAPPY();
112  return 0;
113#endif
114}
115