1 /* Copyright Joyent, Inc. and other Node 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 "uv.h" 23 #include "task.h" 24 #include <stdio.h> 25 #include <stdlib.h> 26 27 static uv_timer_t timer; 28 static uv_tcp_t tcp; 29 static uv_connect_t connect_req; 30 static uv_write_t write_req; 31 static uv_shutdown_t shutdown_req; 32 static uv_buf_t qbuf; 33 static int got_q; 34 static int got_eof; 35 static int called_connect_cb; 36 static int called_shutdown_cb; 37 static int called_tcp_close_cb; 38 static int called_timer_close_cb; 39 static int called_timer_cb; 40 41 42 static void alloc_cb(uv_handle_t* handle, size_t size, uv_buf_t* buf) { 43 buf->base = malloc(size); 44 buf->len = size; 45 } 46 47 48 static void read_cb(uv_stream_t* t, ssize_t nread, const uv_buf_t* buf) { 49 ASSERT((uv_tcp_t*)t == &tcp); 50 51 if (nread == 0) { 52 free(buf->base); 53 return; 54 } 55 56 if (!got_q) { 57 ASSERT(nread == 1); 58 ASSERT(!got_eof); 59 ASSERT(buf->base[0] == 'Q'); 60 free(buf->base); 61 got_q = 1; 62 puts("got Q"); 63 } else { 64 ASSERT(nread == UV_EOF); 65 if (buf->base) { 66 free(buf->base); 67 } 68 got_eof = 1; 69 puts("got EOF"); 70 } 71 } 72 73 74 static void shutdown_cb(uv_shutdown_t *req, int status) { 75 ASSERT(req == &shutdown_req); 76 77 ASSERT(called_connect_cb == 1); 78 ASSERT(!got_eof); 79 ASSERT(called_tcp_close_cb == 0); 80 ASSERT(called_timer_close_cb == 0); 81 ASSERT(called_timer_cb == 0); 82 83 called_shutdown_cb++; 84 } 85 86 87 static void connect_cb(uv_connect_t *req, int status) { 88 ASSERT(status == 0); 89 ASSERT(req == &connect_req); 90 91 /* Start reading from our connection so we can receive the EOF. */ 92 ASSERT_EQ(0, uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb)); 93 94 /* Check error handling. */ 95 ASSERT_EQ(UV_EALREADY, uv_read_start((uv_stream_t*)&tcp, alloc_cb, read_cb)); 96 ASSERT_EQ(UV_EINVAL, uv_read_start(NULL, alloc_cb, read_cb)); 97 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, NULL, read_cb)); 98 ASSERT_EQ(UV_EINVAL, uv_read_start((uv_stream_t*)&tcp, alloc_cb, NULL)); 99 100 /* 101 * Write the letter 'Q' to gracefully kill the echo-server. This will not 102 * effect our connection. 103 */ 104 uv_write(&write_req, (uv_stream_t*) &tcp, &qbuf, 1, NULL); 105 106 /* Shutdown our end of the connection. */ 107 uv_shutdown(&shutdown_req, (uv_stream_t*) &tcp, shutdown_cb); 108 109 called_connect_cb++; 110 ASSERT(called_shutdown_cb == 0); 111 } 112 113 114 static void tcp_close_cb(uv_handle_t* handle) { 115 ASSERT(handle == (uv_handle_t*) &tcp); 116 117 ASSERT(called_connect_cb == 1); 118 ASSERT(got_q); 119 ASSERT(got_eof); 120 ASSERT(called_timer_cb == 1); 121 122 called_tcp_close_cb++; 123 } 124 125 126 static void timer_close_cb(uv_handle_t* handle) { 127 ASSERT(handle == (uv_handle_t*) &timer); 128 called_timer_close_cb++; 129 } 130 131 132 static void timer_cb(uv_timer_t* handle) { 133 ASSERT(handle == &timer); 134 uv_close((uv_handle_t*) handle, timer_close_cb); 135 136 /* 137 * The most important assert of the test: we have not received 138 * tcp_close_cb yet. 139 */ 140 ASSERT(called_tcp_close_cb == 0); 141 uv_close((uv_handle_t*) &tcp, tcp_close_cb); 142 143 called_timer_cb++; 144 } 145 146 147 /* 148 * This test has a client which connects to the echo_server and immediately 149 * issues a shutdown. The echo-server, in response, will also shutdown their 150 * connection. We check, with a timer, that libuv is not automatically 151 * calling uv_close when the client receives the EOF from echo-server. 152 */ 153 TEST_IMPL(shutdown_eof) { 154 struct sockaddr_in server_addr; 155 int r; 156 157 qbuf.base = "Q"; 158 qbuf.len = 1; 159 160 r = uv_timer_init(uv_default_loop(), &timer); 161 ASSERT(r == 0); 162 163 uv_timer_start(&timer, timer_cb, 100, 0); 164 165 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &server_addr)); 166 r = uv_tcp_init(uv_default_loop(), &tcp); 167 ASSERT(!r); 168 169 r = uv_tcp_connect(&connect_req, 170 &tcp, 171 (const struct sockaddr*) &server_addr, 172 connect_cb); 173 ASSERT(!r); 174 175 uv_run(uv_default_loop(), UV_RUN_DEFAULT); 176 177 ASSERT(called_connect_cb == 1); 178 ASSERT(called_shutdown_cb == 1); 179 ASSERT(got_eof); 180 ASSERT(got_q); 181 ASSERT(called_tcp_close_cb == 1); 182 ASSERT(called_timer_close_cb == 1); 183 ASSERT(called_timer_cb == 1); 184 185 MAKE_VALGRIND_HAPPY(); 186 return 0; 187 } 188 189