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1 /* Copyright Bert Belder, and other libuv contributors. All rights reserved.
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2 *
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3 * Permission is hereby granted, free of charge, to any person obtaining a copy
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4 * of this software and associated documentation files (the "Software"), to
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5 * deal in the Software without restriction, including without limitation the
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6 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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7 * sell copies of the Software, and to permit persons to whom the Software is
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8 * furnished to do so, subject to the following conditions:
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9 *
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10 * The above copyright notice and this permission notice shall be included in
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11 * all copies or substantial portions of the Software.
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12 *
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13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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18 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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19 * IN THE SOFTWARE.
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20 */
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21
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22 #include <errno.h>
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23 #include <stdio.h>
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24
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25 #include "uv.h"
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26 #include "task.h"
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27
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28 #ifdef _MSC_VER /* msvc */
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29 # define NO_INLINE __declspec(noinline)
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30 #else /* gcc */
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31 # define NO_INLINE __attribute__ ((noinline))
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32 #endif
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33
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34 #ifdef _WIN32
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35 static uv_os_sock_t sock;
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36 static uv_poll_t handle;
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37 static int close_cb_called = 0;
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38
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39
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40 static void close_cb(uv_handle_t* h) {
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41 close_cb_called++;
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42 }
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43
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44
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45 static void poll_cb(uv_poll_t* h, int status, int events) {
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46 ASSERT(0 && "should never get here");
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47 }
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48
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49
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50 static void NO_INLINE close_socket_and_verify_stack(void) {
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51 const uint32_t MARKER = 0xDEADBEEF;
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52 const int VERIFY_AFTER = 10; /* ms */
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53 int r;
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54
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55 volatile uint32_t data[65536];
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56 size_t i;
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57
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58 for (i = 0; i < ARRAY_SIZE(data); i++)
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59 data[i] = MARKER;
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60
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61 r = closesocket(sock);
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62 ASSERT_OK(r);
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63
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64 uv_sleep(VERIFY_AFTER);
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65
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66 for (i = 0; i < ARRAY_SIZE(data); i++)
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67 ASSERT_EQ(data[i], MARKER);
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68 }
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69 #endif
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70
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71
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72 TEST_IMPL(poll_close_doesnt_corrupt_stack) {
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73 #ifndef _WIN32
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74 RETURN_SKIP("Test only relevant on Windows");
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75 #else
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76 struct WSAData wsa_data;
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77 int r;
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78 unsigned long on;
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79 struct sockaddr_in addr;
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80
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81 r = WSAStartup(MAKEWORD(2, 2), &wsa_data);
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82 ASSERT_OK(r);
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83
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84 sock = socket(AF_INET, SOCK_STREAM, 0);
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85 ASSERT_NE(sock, INVALID_SOCKET);
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86 on = 1;
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87 r = ioctlsocket(sock, FIONBIO, &on);
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88 ASSERT_OK(r);
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89
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90 r = uv_ip4_addr("127.0.0.1", TEST_PORT, &addr);
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91 ASSERT_OK(r);
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92
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93 r = connect(sock, (const struct sockaddr*) &addr, sizeof addr);
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94 ASSERT(r);
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95 ASSERT_EQ(WSAGetLastError(), WSAEWOULDBLOCK);
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96
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97 r = uv_poll_init_socket(uv_default_loop(), &handle, sock);
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98 ASSERT_OK(r);
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99 r = uv_poll_start(&handle, UV_READABLE | UV_WRITABLE, poll_cb);
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100 ASSERT_OK(r);
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101
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102 uv_close((uv_handle_t*) &handle, close_cb);
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103
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104 close_socket_and_verify_stack();
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105
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106 r = uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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107 ASSERT_OK(r);
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108
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109 ASSERT_EQ(1, close_cb_called);
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110
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111 MAKE_VALGRIND_HAPPY(uv_default_loop());
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112 return 0;
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113 #endif
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114 }
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