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1 /* Copyright libuv project and 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 "uv.h"
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23 #include "task.h"
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24 #include <stdio.h>
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25 #include <stdlib.h>
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26
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27 static uv_tcp_t tcp;
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28 static uv_connect_t connect_req;
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29 static uv_shutdown_t shutdown_req;
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30 static uv_buf_t qbuf;
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31 static int got_q;
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32 static int got_eof;
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33 static int called_connect_cb;
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34 static int called_shutdown_cb;
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35 static int called_tcp_close_cb;
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36
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37
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38 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) {
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39 buf->base = malloc(size);
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40 buf->len = size;
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41 }
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42
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43
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44 static void shutdown_cb(uv_shutdown_t *req, int status) {
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45 ASSERT_PTR_EQ(req, &shutdown_req);
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46
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47 ASSERT_EQ(1, called_connect_cb);
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48 ASSERT_OK(called_tcp_close_cb);
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49 }
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50
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51
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52 static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) {
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53 ASSERT_PTR_EQ((uv_tcp_t*)t, &tcp);
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54
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55 if (nread == 0) {
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56 free(buf->base);
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57 return;
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58 }
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59
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60 if (!got_q) {
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61 ASSERT_EQ(4, nread);
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62 ASSERT_OK(got_eof);
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63 ASSERT_MEM_EQ(buf->base, "QQSS", 4);
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64 free(buf->base);
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65 got_q = 1;
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66 puts("got QQSS");
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67 /* Shutdown our end of the connection simultaneously */
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68 uv_shutdown(&shutdown_req, (uv_stream_t*) &tcp, shutdown_cb);
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69 called_shutdown_cb++;
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70 } else {
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71 ASSERT_EQ(nread, UV_EOF);
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72 if (buf->base) {
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73 free(buf->base);
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74 }
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75 got_eof = 1;
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76 puts("got EOF");
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77 }
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78 }
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79
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80
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81 static void connect_cb(uv_connect_t *req, int status) {
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82 ASSERT_OK(status);
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83 ASSERT_PTR_EQ(req, &connect_req);
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84
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85 /* Start reading from our connection so we can receive the EOF. */
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86 ASSERT_OK(uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
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87
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88 /* Check error handling. */
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89 ASSERT_EQ(UV_EALREADY, uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb));
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90 ASSERT_EQ(UV_EINVAL, uv_read_start(NULL, alloc_cb, read_cb));
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91 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, NULL, read_cb));
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92 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, alloc_cb, NULL));
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93
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94 /*
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95 * Write the letter 'Q' and 'QSS` to gracefully kill the echo-server. This
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96 * will not effect our connection.
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97 */
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98 ASSERT_EQ(qbuf.len, uv_try_write((uv_stream_t*) &tcp, &qbuf, 1));
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99
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100 called_connect_cb++;
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101 ASSERT_OK(called_shutdown_cb);
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102 }
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103
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104
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105 /*
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106 * This test has a client which connects to the echo_server and immediately
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107 * issues a shutdown. We check that this does not cause libuv to hang.
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108 */
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109 TEST_IMPL(shutdown_simultaneous) {
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110 struct sockaddr_in server_addr;
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111 int r;
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112
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113 qbuf.base = "QQSS";
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114 qbuf.len = 4;
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115
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116 ASSERT_OK(uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr));
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117 r = uv_tcp_init(uv_default_loop(), &tcp);
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118 ASSERT_OK(r);
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119
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120 r = uv_tcp_connect(&connect_req,
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121 &tcp,
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122 (const struct sockaddr*) &server_addr,
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123 connect_cb);
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124 ASSERT_OK(r);
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125
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126 uv_run(uv_default_loop(), UV_RUN_DEFAULT);
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127
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128 ASSERT_EQ(1, called_connect_cb);
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129 ASSERT_EQ(1, called_shutdown_cb);
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130 ASSERT_EQ(1, got_eof);
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131 ASSERT_EQ(1, got_q);
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132
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133 MAKE_VALGRIND_HAPPY(uv_default_loop());
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134 return 0;
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135 }
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