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 25 #include <stdio.h> 26 #include <stdlib.h> 27 #include <string.h> 28 29 static void connection_cb(uv_stream_t* server, int status); 30 static void connect_cb(uv_connect_t* req, int status); 31 static void write_cb(uv_write_t* req, int status); 32 static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf); 33 static void alloc_cb(uv_handle_t* handle, size_t suggested_size, uv_buf_t* buf); 34 35 static uv_tcp_t tcp_server; 36 static uv_tcp_t tcp_client; 37 static uv_tcp_t tcp_peer; /* client socket as accept()-ed by server */ 38 static uv_connect_t connect_req; 39 static uv_write_t write_req; 40 41 static int write_cb_called; 42 static int read_cb_called; 43 44 static void connection_cb(uv_stream_t* server, int status) { 45 int r; 46 uv_buf_t buf; 47 48 ASSERT(server == (uv_stream_t*)&tcp_server); 49 ASSERT(status == 0); 50 51 r = uv_tcp_init(server->loop, &tcp_peer); 52 ASSERT(r == 0); 53 54 r = uv_accept(server, (uv_stream_t*)&tcp_peer); 55 ASSERT(r == 0); 56 57 r = uv_read_start((uv_stream_t*)&tcp_peer, alloc_cb, read_cb); 58 ASSERT(r == 0); 59 60 buf.base = "hello\n"; 61 buf.len = 6; 62 63 r = uv_write(&write_req, (uv_stream_t*)&tcp_peer, &buf, 1, write_cb); 64 ASSERT(r == 0); 65 } 66 67 68 static void alloc_cb(uv_handle_t* handle, 69 size_t suggested_size, 70 uv_buf_t* buf) { 71 static char slab[1024]; 72 buf->base = slab; 73 buf->len = sizeof(slab); 74 } 75 76 77 static void read_cb(uv_stream_t* stream, ssize_t nread, const uv_buf_t* buf) { 78 if (nread < 0) { 79 fprintf(stderr, "read_cb error: %s\n", uv_err_name(nread)); 80 ASSERT(nread == UV_ECONNRESET || nread == UV_EOF); 81 82 uv_close((uv_handle_t*)&tcp_server, NULL); 83 uv_close((uv_handle_t*)&tcp_peer, NULL); 84 } 85 86 read_cb_called++; 87 } 88 89 90 static void connect_cb(uv_connect_t* req, int status) { 91 ASSERT(req == &connect_req); 92 ASSERT(status == 0); 93 94 /* Close the client. */ 95 uv_close((uv_handle_t*)&tcp_client, NULL); 96 } 97 98 99 static void write_cb(uv_write_t* req, int status) { 100 ASSERT(status == 0); 101 write_cb_called++; 102 } 103 104 105 TEST_IMPL(tcp_write_to_half_open_connection) { 106 struct sockaddr_in addr; 107 uv_loop_t* loop; 108 int r; 109 110 ASSERT(0 == uv_ip4_addr("127.0.0.1", TEST_PORT, &addr)); 111 112 loop = uv_default_loop(); 113 ASSERT(loop != NULL); 114 115 r = uv_tcp_init(loop, &tcp_server); 116 ASSERT(r == 0); 117 118 r = uv_tcp_bind(&tcp_server, (const struct sockaddr*) &addr, 0); 119 ASSERT(r == 0); 120 121 r = uv_listen((uv_stream_t*)&tcp_server, 1, connection_cb); 122 ASSERT(r == 0); 123 124 r = uv_tcp_init(loop, &tcp_client); 125 ASSERT(r == 0); 126 127 r = uv_tcp_connect(&connect_req, 128 &tcp_client, 129 (const struct sockaddr*) &addr, 130 connect_cb); 131 ASSERT(r == 0); 132 133 r = uv_run(loop, UV_RUN_DEFAULT); 134 ASSERT(r == 0); 135 136 ASSERT(write_cb_called > 0); 137 ASSERT(read_cb_called > 0); 138 139 MAKE_VALGRIND_HAPPY(); 140 return 0; 141 } 142