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
35 static uv_os_sock_t sock;
36 static uv_poll_t handle;
37 static int close_cb_called = 0;
38
39
close_cb(uv_handle_t * h)40 static void close_cb(uv_handle_t* h) {
41 close_cb_called++;
42 }
43
44
poll_cb(uv_poll_t * h,int status,int events)45 static void poll_cb(uv_poll_t* h, int status, int events) {
46 ASSERT(0 && "should never get here");
47 }
48
49
close_socket_and_verify_stack(void)50 static 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_OK(r);
63
64 uv_sleep(VERIFY_AFTER);
65
66 for (i = 0; i < ARRAY_SIZE(data); i++)
67 ASSERT_EQ(data[i], MARKER);
68 }
69 #endif
70
71
TEST_IMPL(poll_close_doesnt_corrupt_stack)72 TEST_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_OK(r);
83
84 sock = socket(AF_INET, SOCK_STREAM, 0);
85 ASSERT_NE(sock, INVALID_SOCKET);
86 on = 1;
87 r = ioctlsocket(sock, FIONBIO, &on);
88 ASSERT_OK(r);
89
90 r = uv_ip4_addr("127.0.0.1", TEST_PORT, &addr);
91 ASSERT_OK(r);
92
93 r = connect(sock, (const struct sockaddr*) &addr, sizeof addr);
94 ASSERT(r);
95 ASSERT_EQ(WSAGetLastError(), WSAEWOULDBLOCK);
96
97 r = uv_poll_init_socket(uv_default_loop(), &handle, sock);
98 ASSERT_OK(r);
99 r = uv_poll_start(&handle, UV_READABLE | UV_WRITABLE, poll_cb);
100 ASSERT_OK(r);
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_OK(r);
108
109 ASSERT_EQ(1, close_cb_called);
110
111 MAKE_VALGRIND_HAPPY(uv_default_loop());
112 return 0;
113 #endif
114 }
115
